Chatterjee Smaranjit, Rawal Sudhir Kumar
Department of Surgical Oncology and Uro-oncology, Rajeev Gandhi Cancer Institute and Research Centre, Rohini Sector 5, New Delhi, 110085 India.
Indian J Surg Oncol. 2017 Sep;8(3):389-396. doi: 10.1007/s13193-016-0614-1. Epub 2017 Jun 6.
Testicular germ cell tumors (GCTs) comprise 2% of all human male malignancies and are the most common solid tumors in men between ages 15 and 35 years. Risk of contralateral testicular GCT is between 1 and 5%. Partial orchidectomy (PO) was originally described in 1984 by Richie. The evolving indications include metachronous tumors and tumor in solitary testicles. Also, small non-palpable lesions detected only by ultrasonography (USG) in asymptomatic patients is another indication. Salvagability is only chosen for tumors less than 2 cm in size. The key feature of PO is an inguinal approach with early vascular control using a rubber tourniquet before testicular mobilization into the field to avoid systemic tumor seeding. After, mass excision with a margin mandatory frozen section is done to assess adequacy of resection. Intra-op USG may be beneficial in small non-palpable lesions. Post op tumor markers are assessed and patients are taught self-examination of testis. Recent series shows that PO is safe and gives adequate oncological control. Carcinoma in situ (CIS) in the affected testis at PO or after testicular sparing surgery remains a challenge. At most centers, 20 Gy is recommended when adjuvant local radiation treatment is chosen to treat CIS. But this dose may hamper Androgen production. Radical orchiectomy remains the gold standard and should be discussed as part of informed consent. It is mandatory to highlight the risks of local recurrence and CIS, and treatment (observation, radiation, or completion orchiectomy) as well as the need for androgen supplementation and fertility risks before choosing testicular salvage procedures.
睾丸生殖细胞肿瘤(GCTs)占人类男性所有恶性肿瘤的2%,是15至35岁男性中最常见的实体瘤。对侧睾丸发生GCT的风险在1%至5%之间。部分睾丸切除术(PO)最初由里奇于1984年描述。其适应证不断演变,包括异时性肿瘤和单睾丸中的肿瘤。此外,无症状患者中仅通过超声检查(USG)发现的不可触及的小病变是另一个适应证。仅对直径小于2 cm的肿瘤选择保留睾丸手术。PO的关键特征是采用腹股沟入路,在将睾丸移至手术视野之前,先用橡胶止血带早期控制血管,以避免肿瘤细胞播散至全身。之后,进行肿块切除并进行切缘强制冰冻切片检查,以评估切除是否彻底。术中超声检查对不可触及的小病变可能有益。术后评估肿瘤标志物,并教会患者自我检查睾丸。最近的系列研究表明,PO是安全的,并且能提供足够的肿瘤学控制。PO或保留睾丸手术后,患侧睾丸的原位癌(CIS)仍然是一个挑战。在大多数中心,选择辅助局部放疗治疗CIS时,推荐剂量为20 Gy。但这个剂量可能会影响雄激素的产生。根治性睾丸切除术仍然是金标准,应作为知情同意的一部分进行讨论。在选择保留睾丸手术之前,必须强调局部复发和CIS的风险、治疗方法(观察、放疗或根治性睾丸切除术)以及雄激素补充的必要性和生育风险。