The ESHRE rASRM (revised American Society for Reproductive Medicine) staging system for endometriosis has been criticized for poor correlation with symptoms and fertility outcomes. The ENZIAN classification (2011, revised 2021) addresses this by:
- A Specifically scoring peritoneal superficial endometriosis based on implant color and activity
- B Correlating endometrioma size with ovarian reserve markers for fertility prognosis
- C Classifying deep infiltrating endometriosis (DIE) by compartment depth and organ involvement ✓
- D Integrating surgical resection margins with histological confirmation of complete excision
Explanation
The ENZIAN classification was developed specifically for deep infiltrating endometriosis (DIE), which the rASRM staging system inadequately captures. ENZIAN classifies DIE by anatomical compartment and depth of invasion: A = vagina/rectovaginal, B = sacrouterine ligaments/pelvic wall, C = rectum/sigmoid colon, with F = additional lesions (fallopian tubes, bladder, ureter). The 2021 #Enzian update added peritoneal and ovarian endometriosis categories. This provides surgeons with a comprehensive map for operative planning and correlates better with surgical complexity and patient symptoms than rASRM staging.
Reference: Shaw's Textbook of Gynaecology, 17th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.