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Inguinal orchiectomy

Inguinal orchiectomy, also known as radical inguinal orchidectomy, is a surgical procedure in which one or both testicles are removed along with the full length of the through an incision in the area. This approach ensures high of the at the internal inguinal ring to prevent potential tumor dissemination via lymphatic or vascular routes. It represents the gold standard for the initial diagnosis and treatment of testicular masses suspicious for , providing definitive histopathological confirmation, accurate staging, and local tumor control. The procedure is primarily indicated for suspected germ cell tumors of the testis. The inguinal route is preferred over scrotal approaches to avoid scrotal skin contamination, which could complicate subsequent lymph node dissection if metastasis occurs.

Indications

Testicular cancer

Inguinal orchiectomy serves as the primary diagnostic and therapeutic intervention for suspected testicular cancer, particularly germ cell tumors, which constitute approximately 95% of all testicular malignancies. As the gold standard initial treatment, it involves the radical removal of the affected testis and spermatic cord through an inguinal approach to establish a definitive diagnosis and address the primary tumor. This procedure is recommended for nearly all patients with a palpable testicular mass suspicious for malignancy, enabling accurate histopathological evaluation to guide subsequent management. The diagnostic value of inguinal orchiectomy lies in its ability to provide excised for detailed pathological , confirming the cancer subtype—such as or nonseminomatous —and determining the local stage of disease, which informs risk stratification and decisions. By securing high-quality without contamination, it facilitates precise correlation and genomic profiling, essential for distinguishing pure from mixed or nonseminomatous variants that may require different therapeutic pathways. Therapeutically, the procedure removes the primary along with the , interrupting potential lymphatic drainage pathways and preventing intra-abdominal spread, which is critical given the tumor's propensity for retroperitoneal . For early-stage , inguinal orchiectomy alone achieves cure rates exceeding 95% when integrated with active surveillance, , or as needed, reflecting the overall high curability of testicular tumors. It is typically performed unilaterally, though bilateral orchiectomy may be indicated in rare synchronous cases affecting both testes. Importantly, the inguinal route is preferred over a scrotal approach to avoid tumor seeding into scrotal lymphatics, which could complicate local control and increase recurrence risk.

Other conditions

Inguinal orchiectomy serves as a palliative in advanced to achieve by reducing testosterone production from the testes. This procedure, typically performed bilaterally, rapidly lowers serum testosterone levels to castrate range, providing symptomatic relief and slowing disease progression in hormone-sensitive cases. Historically, bilateral was the standard initial treatment for metastatic prior to the development of (GnRH) agonists in the 1980s, offering a cost-effective and irreversible alternative to medical therapies. It achieves a (PSA) reduction of greater than 90% in most patients, establishing effective biochemical response and palliation. Although less common today due to the convenience of reversible medical options, retains relevance in resource-limited settings or for patients non-compliant with long-term injections. In gender-affirming care, inguinal orchiectomy plays a key role for women seeking to align physical characteristics with , frequently as a standalone procedure or adjunct to . By eliminating testicular testosterone production, it facilitates effects such as reduced and softer , while allowing discontinuation of anti-androgen medications and potentially lowering doses to mitigate side effects like . Performed via an inguinal approach to preserve scrotal tissue for future surgeries like , it offers high patient satisfaction rates and is considered safe with low complication profiles when integrated into multidisciplinary care protocols. Rarely, inguinal orchiectomy addresses chronic orchitis refractory to conservative treatments, where persistent inflammation leads to (orchialgia) unresponsive to antibiotics or anti-inflammatories. In such scenarios, the procedure targets nociceptive sources within the testicular and , achieving pain resolution in approximately 75% of cases via high ligation. For undescended testes () in adults complicated by increased malignancy risk or , orchiectomy is recommended over , particularly for intra-abdominal or high inguinal positions, to mitigate development. This intervention is prioritized when the contralateral testis is functional, balancing oncologic safety with endocrine preservation.

Relevant anatomy

Testicular and spermatic cord structures

The testes are paired, oval-shaped gonadal organs located within the , each measuring approximately 3 to 5 cm in length, 2 to 3 cm in width, and weighing 15 to 25 grams. They serve essential exocrine and endocrine functions, producing spermatozoa via in the seminiferous tubules and secreting testosterone from Leydig cells to support male secondary sexual characteristics and reproductive physiology. The testis is enveloped by the , a consisting of visceral and parietal layers derived embryonically from the processus vaginalis, which covers the anterior and lateral aspects while leaving the posterior surface adherent to the . Beneath this lies the tunica albuginea, a thick, fibrous capsule composed of and fibers that encases the and extends inward as incomplete septations to compartmentalize the lobules of seminiferous tubules. The is a tubular extension of fascia and supporting tissues that suspends the and within the scrotum, extending superiorly through the to the deep inguinal ring. Its core components include the , a muscular duct conveying mature from the to the ; the , a direct branch from the inferior to the renal arteries, which supplies oxygenated blood to the testicular parenchyma; and the pampiniform venous plexus, a network of veins that coalesces into the , facilitating through countercurrent heat exchange with the artery. Other integral elements are the , striated fibers from the internal oblique that encircle the cord to reflexively elevate the ; lymphatic vessels that parallel the vasculature; and nerves, including sympathetic fibers from the hypogastric plexus and sensory branches from the . Lymphatic drainage from the testis and travels along the and testicular vessels, converging primarily into the para-aortic lymph nodes at the L1-L2 level near the , bypassing the inguinal nodes that serve the scrotal wall. This drainage pattern underscores the anatomical basis for high of the cord during to interrupt potential routes of lymphatic . The testes originate embryologically from the urogenital ridge in the retroperitoneum during the 6th to 7th gestational weeks and descend into the in two phases: an initial transabdominal migration to the internal inguinal ring guided by the , followed by an inguinoscrotal phase driven by androgens and intra-abdominal pressure. This descent through the , typically completing by the 35th gestational week, accounts for the intra-abdominal positioning of key vascular and lymphatic structures, necessitating an inguinal approach in surgical interventions targeting the testis and .

Inguinal canal and groin region

The is an passage in the lower anterior , measuring approximately 4 cm in length, that extends inferomedially just superior to the . It begins at the deep inguinal ring, located at the —halfway between the and the , lateral to the inferior epigastric vessels—and terminates at the superficial inguinal ring, positioned superomedially to the . The canal is bounded anteriorly by the of the external muscle (reinforced laterally by the internal ), posteriorly by the and , superiorly (roof) by the arched fibers of the internal and transversus abdominis muscles, and inferiorly (floor) by the (thickened medially by the ). In males, the canal transmits the , which includes structures such as the , , and lymphatics. The groin region overlying the consists of layered tissues, beginning superficially with and subcutaneous fat, followed by the external oblique that forms the anterior . Adjacent neurovascular structures include the , which traverses the canal to innervate the upper medial thigh, anterior , and , and the external iliac vessels, positioned laterally near the deep inguinal ring. Weakening of the canal's posterior wall or rings can predispose to inguinal hernias, where abdominal contents protrude through these defects. In the context of inguinal orchiectomy, the canal provides critical surgical access to the spermatic cord, enabling high ligation at the deep inguinal ring to securely isolate and divide the cord while capturing associated lymphatics. This approach is preferred over a scrotal incision because it minimizes the risk of local tumor recurrence in malignancy cases by preventing contamination of the scrotal skin and lymphatic spillage into non-resectable areas. The typical incision is 5-7 cm long, made parallel to the inguinal ligament approximately 2 cm superior and lateral to the pubic tubercle, allowing dissection through the canal layers without violating the scrotum.

Surgical procedure

Preoperative preparation

Preoperative preparation for inguinal orchiectomy involves a systematic to confirm the , stage the disease, assess patient fitness, and address and psychological concerns, ensuring optimal safety and outcomes. This process typically occurs on an outpatient basis or with a short stay, allowing patients to return home the same day or after brief observation. Patients are advised to fast for 6-8 hours prior to to prepare for general anesthesia. Diagnostic workup begins with a high-resolution scrotal ultrasound to confirm the presence of a testicular mass, offering near 100% sensitivity and specificity for distinguishing solid neoplasms from benign conditions like epididymitis or hydrocele. Serum tumor markers, including alpha-fetoprotein (AFP), beta-human chorionic gonadotropin (β-hCG), and lactate dehydrogenase (LDH), are measured before surgery to support the diagnosis of germ cell tumors and aid in histologic classification, with elevations seen in up to 90% of nonseminomatous cases. Staging involves contrast-enhanced computed tomography (CT) of the chest, abdomen, and pelvis to evaluate for metastases, as recommended by major guidelines; magnetic resonance imaging (MRI) may substitute if CT is contraindicated. Patient assessment includes a comprehensive and to identify comorbidities, followed by routine blood tests such as (CBC) to check for or and coagulation studies if bleeding risks are present. Cardiac and pulmonary evaluations are performed as needed, particularly in patients with , to optimize fitness for surgery; antiplatelet or anticoagulant medications are discontinued per guidelines to minimize bleeding risks. All patients receive counseling on preservation, with banking strongly recommended for those of reproductive age, as and potential adjuvant therapies can impair even with a normal contralateral testis. Discussion of insertion during the procedure is also standard to address cosmetic and psychological impacts. Anesthesia planning favors general due to the 's brevity and the need to manage traction reflexes, though regional options are occasionally considered. Preoperative prophylaxis, such as a single dose of , is administered to reduce surgical site risk, guided by local resistance patterns. is obtained after detailing specifics, potential complications like or (occurring in about 1% of cases), and alternatives such as testis-sparing for select small lesions. The surgical site is marked preoperatively by the and verified with the patient to prevent wrong-side errors. A scrotal support garment is advised post-procedure to reduce swelling, with instructions provided beforehand.

Intraoperative technique

The intraoperative technique for radical inguinal orchiectomy emphasizes complete en bloc removal of the testis and through an inguinal approach to minimize the risk of tumor dissemination, distinguishing it from simple , which involves low clamping of the cord and is reserved for non-malignant conditions. The typically lasts 30 to 60 minutes and is performed under or spinal , focusing on unilateral removal unless bilateral involvement necessitates otherwise. No microscope is employed, as the relies on direct visualization and blunt . The surgery begins with patient positioning in the supine position, followed by a transverse or oblique incision measuring 5 to 7 cm, placed just above the pubic tubercle and parallel to the inguinal ligament, extending laterally toward the anterior superior iliac spine. The incision is deepened through the skin and subcutaneous tissues to reach the external oblique aponeurosis, which is then incised along its fibers to expose the inguinal canal, taking care to identify and preserve the ilioinguinal nerve. Blunt dissection is used to mobilize the spermatic cord at the level of the pubic tubercle, encircling it gently with the thumb and forefinger before applying a Penrose drain as a tourniquet proximal to the internal inguinal ring for controlled traction and to prevent vascular dissemination of potential tumor cells. Once isolated, the is mobilized high at the deep inguinal ring using the triple-clamp technique: two nonabsorbable clamps are placed proximally and one distally to the , followed by of the cord between the clamps. The proximal end is securely ligated with nonabsorbable sutures (such as 2-0 or ) to achieve , while the distal cord, testis, and are delivered en bloc through the incision by gentle traction and external scrotal pressure, avoiding any manipulation that could rupture the tunica albuginea. Any attachments, such as the , are divided and ligated as needed to complete the excision. Closure proceeds in layers after confirming and irrigating the wound with saline: the external oblique is reapproximated with running absorbable sutures (e.g., 2-0 ) to the level of the external ring, preventing indirect formation; subcutaneous tissues are closed with absorbable material, and the skin is approximated with subcuticular sutures or staples. Drains are not routinely used. An optional testicular may be inserted into the for cosmetic purposes prior to scrotal inversion, sized intraoperatively to match the contralateral testis.

Risks and complications

Short-term risks

Short-term risks of inguinal orchiectomy primarily encompass complications that arise during or within the immediate postoperative period, typically resolving within weeks. The overall complication rate for this procedure is low, reported at approximately 2.6% across large cohorts. Intraoperative risks include vascular injury to the vessels, which can lead to bleeding if not adequately controlled during . Bleeding and hematoma formation represent the most common short-term complications, occurring in 1-2% of cases due to potential disruption of vascular structures in the . Scrotal swelling and bruising are expected in nearly all patients as a result of this bleeding into the scrotal space, often manifesting as tenderness and discoloration that peaks in the first few days and typically resolves over 2-4 weeks with conservative measures such as application and elevation. Re-intervention for significant is rare, affecting about 0.4% of patients. Infection, including wound site or scrotal involvement, occurs in roughly 1% of procedures and is mitigated through prophylaxis. Clinical signs include fever, localized , or purulent , prompting prompt evaluation to prevent progression. Surgical site rates in inguinal urologic procedures, including , have been documented at up to 6.5% in some series, though lower rates are typical with standard protocols. Anesthesia-related complications, such as , , or , are infrequent but can occur due to general or spinal anesthesia used in the procedure. Additionally, to the during spermatic cord dissection may cause transient groin or scrotal pain and , affecting up to 60% of patients initially, with most cases resolving spontaneously within weeks. Postoperative is nearly universal in the acute phase, peaking on days 1-3 and managed effectively with a combination of opioids and nonsteroidal anti-inflammatory drugs (NSAIDs) for 1-2 weeks. This often stems from incisional trauma and local inflammation, with about 5-10% of patients experiencing more pronounced short-term issues requiring extended symptomatic support.

Long-term effects

Following inguinal orchiectomy, particularly for , patients may experience long-term due to reduced testosterone production, even after unilateral removal which typically preserves approximately 50% of gonadal function from the remaining testis. This can manifest as , decreased , loss of muscle mass, , and mood changes, with clinically significant testosterone deficiency affecting up to 17% of patients at one year post-treatment. Monitoring serum testosterone levels is essential, with replacement therapy recommended if levels fall below 300 ng/dL or symptomatic deficiency occurs, as untreated increases risks of metabolic disorders like and . Infertility represents another enduring consequence, though unilateral orchiectomy generally maintains potential; however, up to 85% of patients show impaired semen parameters, including reduced concentration and 9% developing . Permanent occurs if the procedure involves the only functional testis or is bilateral, underscoring the importance of preoperative banking, which is recommended by guidelines for all patients to preserve future reproductive options. Over 50% of men may already have at , and post-orchiectomy success rates exceed 90% with alone, though assisted reproductive technologies are needed in about 22% of cases. Psychological impacts are common, with body image concerns arising from scrotal changes and potential prosthesis dissatisfaction, alongside elevated rates of depression and anxiety affecting 10-20% of survivors. These effects can diminish and correlate with , often requiring counseling or support to address feelings of loss, shame, or diminished . Testosterone replacement therapy, via gels, injections, or patches, not only mitigates hormonal symptoms but also improves psychological and in affected individuals. Testicular cancer survivors face a heightened risk of secondary malignancies, up to twice that of the general population, persisting for over two decades post-orchiectomy and influenced by subsequent treatments like or radiation. Common secondary cancers include contralateral testicular tumors, gastrointestinal types, , and , necessitating long-term surveillance to detect these risks early.

Recovery and aftercare

Immediate postoperative care

Following radical inguinal orchiectomy, patients typically undergo a short stay, often as an outpatient with same-day discharge, though some may remain overnight for observation, resulting in an average length of stay of 0 to 1 day. In the recovery room, including temperature, pulse, , and are closely monitored to ensure stability. begins with intravenous analgesics if needed during the initial postoperative period, transitioning to oral medications such as acetaminophen or prescribed opioids for mild to moderate discomfort in the and , which is common in the first few days. Approximately 89% of procedures are performed on an outpatient basis, allowing most patients to return home shortly after surgery. Discharge criteria generally include stable , adequate pain control with oral medications, normal voiding function, and the ability to tolerate oral intake. At home, wound care involves keeping the incision dry for the first 48 hours, after which gentle showering with mild soap is permitted, followed by patting dry and covering with a sterile if needed; baths, swimming, or soaking should be avoided until cleared by the , typically after 2 weeks. Ice packs applied intermittently to the area for 20 minutes at a time can help reduce swelling and bruising, which may persist for 2 to 4 weeks. Patients are advised to avoid straining activities, such as lifting more than 10 pounds, for at least 2 weeks to prevent complications like formation. Activity restrictions emphasize rest on the first postoperative day, with gradual ambulation encouraged starting soon after to promote circulation, aiming for short walks several times daily. Scrotal , such as a supportive athletic or tight , is recommended to minimize swelling and provide comfort during the initial recovery phase. A follow-up appointment with the surgeon is typically scheduled within 1 to 2 weeks to assess healing and discuss results. Patients should monitor for signs of complications, such as fever exceeding 101°F (38.3°C), excessive redness or drainage from the incision, severe swelling, or difficulty urinating, and seek immediate medical attention if these occur. Long-term hormone monitoring may be initiated if indicated, but initial focus remains on acute recovery.

Long-term management

Following inguinal orchiectomy, typically performed as the initial treatment for , long-term management emphasizes ongoing for disease recurrence, monitoring of hormonal status, preservation of and , and psychological support to optimize . Patients are advised to adhere to a structured follow-up regimen tailored to their cancer and factors, with multidisciplinary involvement from oncologists, urologists, and endocrinologists as needed. This approach aims to detect any or metastatic disease early while addressing potential long-term sequelae of and therapies. Cancer surveillance is a of , particularly for stage I disease where active surveillance is the preferred strategy after to avoid overtreatment. Serial monitoring of tumor markers such as (AFP), beta-human chorionic gonadotropin (β-hCG), and (LDH) is recommended every 2-3 months in the first year for nonseminomatous tumors (NSGCT), transitioning to every 6-12 months in subsequent years up to year 5. Imaging, including abdominal/pelvic computed tomography (CT) scans, occurs every 6 months initially for and every 3-6 months for NSGCT, with chest imaging as clinically indicated; frequencies decrease over time, often extending beyond 5 years for high-risk cases. If recurrence is detected, adjuvant therapies such as (e.g., , , ) or retroperitoneal dissection may be initiated promptly to improve outcomes. Hormonal management focuses on preventing or treating , which affects 5-10% of patients post-unilateral due to potential compromise of the remaining testis. Annual testosterone level checks are advised, with replacement therapy recommended for symptomatic patients exhibiting levels below 250-300 ng/dL, such as those experiencing , reduced , or . Options include transdermal patches, gels, or injections, titrated to maintain physiologic levels while monitoring for side effects like erythrocytosis. Routine endocrine evaluation ensures timely intervention, as untreated deficiency can impact bone health and metabolic function. Fertility and sexual health counseling is integral, as orchiectomy and subsequent treatments can impair and erectile function in up to 30% of survivors. Pre-orchiectomy sperm banking is encouraged when feasible, and post-surgery, patients receive guidance on reproductive options, including assisted reproductive technologies if needed. , such as erectile difficulties, may arise from hormonal changes or psychological factors; phosphodiesterase-5 inhibitors (e.g., ) can provide support, while testicular prosthetics offer cosmetic benefits to alleviate concerns. Most patients regain normal sexual activity within months, with multidisciplinary clinics addressing these aspects holistically. Full physical recovery typically occurs within 4-8 weeks, allowing resumption of strenuous activities, though return to desk-based work is often possible after 1-2 weeks. Psychological support, including counseling or support groups, is recommended to mitigate elevated risks of and anxiety, which affect up to 44% of patients shortly after surgery, particularly among those without strong . Early intervention through resources can significantly improve emotional well-being and adherence to follow-up care.

History

Early surgical approaches

The practice of orchiectomy originated in ancient civilizations, where was commonly performed as a means to create eunuchs for roles such as guardians or court officials, or as a form of for crimes or wartime captives. In the era, eunuchs were employed as slaves and trusted servants despite imperial bans on , with procedures often involving rudimentary scrotal incisions or crushing of the testicles without , leading to significant pain and risk of hemorrhage. These early methods were crude and lacked sterile techniques, frequently resulting in fatal infections or incomplete removal. By the , began transitioning from punitive or ritualistic applications to medical interventions, primarily for managing , severe infections, or complications from treatments like mercury for . Surgical removal of the was indicated in cases of irreparable injury from accidents or battlefield wounds, as seen in reports where urological injuries often necessitated amid rampant suppuration. A notable advancement occurred in 1877 when Scottish surgeon Thomas Annandale performed the first successful on a 3-year-old boy with an ectopic , employing Joseph Lister's emerging methods to fix the testis in the rather than removing it, marking a shift toward preservation. Pre-1900 mercury therapies for , which caused testicular toxicity and , frequently culminated in when conservative measures failed, though outcomes were poor due to limited understanding of the disease. Early 20th-century developments refined orchiectomy for oncologic purposes, with French urologist Maurice Chevassu describing the radical orchiectomy in 1910 as the preferred approach for testicular tumors. Chevassu advocated en bloc removal of the testis along with its vascular pedicle and regional lymph nodes via an inguinal incision, which isolated the procedure from scrotal skin to prevent tumor cell contamination and lymphatic spread. This technique addressed prior high mortality rates from postoperative infections, which exceeded 40% in some pre-antisepsis surgical series before Lister's carbolic acid methods reduced them to around 15% by the late 1860s. Prior to widespread antisepsis in the 1870s, infection-related complications dominated outcomes, with and claiming many lives following even minor genital surgeries.

Modern standardization

Following , inguinal orchiectomy was adopted as the gold standard for managing suspected testicular malignancies, driven by military studies on over 900 affected soldiers that emphasized its role in histopathological confirmation and improved outcomes when combined with retroperitoneal lymph node dissection. In the , integration of agents like actinomycin D and with orchiectomy marked a pivotal advancement, demonstrating tumor chemosensitivity and laying the foundation for . By the 1970s, advancements in tumor staging, including the use of markers like , contributed to rising cure rates for metastatic , increasing from around 10% at the decade's start to 60% by 1978 through refined surgical and adjuvant approaches. The inguinal approach specifically minimized local recurrence risks compared to scrotal incisions, with reviews showing rates of 0.4% for inguinal versus 2.9% for scrotal violations, underscoring its oncologic superiority. In the 1980s, pediatric protocols began diverging from adult standards, shifting toward testis-sparing surgery for many childhood tumors—often benign or types—while adults continued with inguinal orchiectomy to ensure complete resection. During this period, laparoscopic orchiectomy was explored as a potential alternative, but concerns over inadequate and intra-abdominal tumor seeding led to its limited adoption, with the open inguinal method remaining preferred for oncologic safety. Recent developments have refined the inguinal orchiectomy with minimally invasive variations, such as subinguinal approaches using smaller incisions (2-3 cm) to reduce postoperative pain and recovery time while maintaining high of the cord. Emphasis on preservation has grown, with routine banking recommended preoperatively to address potential subfertility from unilateral removal or adjuvant therapies. In the , multidisciplinary care involving urologists, medical oncologists, and specialists has become central, optimizing risk-stratified management and long-term survivorship. In recent years, molecular biomarkers such as miR-371a-3p have been incorporated into protocols to predict more accurately. Global guidelines, such as the European Association of Urology's 2024 recommendations (reprinted 2025), continue to affirm radical inguinal orchiectomy as the standard initial treatment for testicular germ cell tumors, citing its diagnostic accuracy, staging utility, and low recurrence risk when performed correctly.

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