A 58-year-old woman undergoes robotic hysterectomy for grade 1 endometrioid endometrial carcinoma. The surgeon plans to perform sentinel lymph node mapping. The standard site of injection for sentinel lymph node mapping in endometrial carcinoma is which of the following?

• A Cervical injection ✓
• B Subserosal fundal injection
• C Peri-tumoral endometrial injection under hysteroscopic guidance
• D Inguinal ligament injection

Explanation

Cervical injection is the standard and most validated site for sentinel lymph node mapping in endometrial carcinoma. It reliably maps to the pelvic and para-aortic lymph nodes. Hysteroscopic peri-tumoral injection is technically difficult, less reliable, and not routinely used. Subserosal fundal injection does not adequately drain the lymphatic basins at risk. Inguinal ligament injection is irrelevant to uterine lymphatic drainage.

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

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.