Lymphatics from the right testis drain primarily to which nodal group, explaining metastatic spread patterns distinct from scrotal skin tumours?

• A Right para-aortic (lumbar) nodes at the L1–L2 level ✓
• B Right inguinal nodes
• C Right external iliac nodes
• D Pelvic sidewall nodes

Explanation

The testis develops in the abdomen and retains its lymphatic drainage to the para-aortic (lumbar) nodes near the origin of the testicular vessels (around L1–L2): right side drains to inter-aortocaval nodes, left side to para-aortic nodes. This is why testicular tumours metastasise initially to retroperitoneal nodes, not inguinal nodes. Scrotal skin, in contrast, drains to superficial inguinal nodes. This anatomical distinction is clinically important for imaging and retroperitoneal lymph node dissection.

Reference: BD Chaurasia's Human Anatomy, 8th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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