In carcinoma of the penis, the first echelon of lymphatic drainage from the primary tumour is to which group of nodes?

• A Superficial inguinal nodes ✓
• B External iliac nodes
• C Obturator nodes
• D Para-aortic nodes

Explanation

Lymphatic spread of penile carcinoma occurs in a predictable stepwise fashion: first to the superficial inguinal nodes, then to the deep inguinal nodes, then to the pelvic nodes including external iliac and obturator groups. Para-aortic nodes are involved only very late. This orderly pattern underpins the role of inguinal node assessment and dynamic sentinel node biopsy in staging, and prophylactic or therapeutic inguinal block dissection in node-positive disease.

Reference: Bailey and Love's Short Practice of Surgery, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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