Obstetrics & Gynaecology · Endometriosis, Adenomyosis and Fibroids

In the FIGO PALM-COEIN leiomyoma classification, which statement correctly distinguishes a Type 2 (submucous) from a Type 3 (other) fibroid?

  • A Type 2 is pedunculated intracavitary; Type 3 is sessile with <50% intramural component
  • B Type 2 is sessile submucous with ≥50% intramural component; Type 3 is entirely intramural but touches the endometrium without distorting the cavity
  • C Type 2 is entirely within the myometrium; Type 3 protrudes partially into the cavity
  • D Type 2 and Type 3 differ only in size, not location
Correct answer: B. Type 2 is sessile submucous with ≥50% intramural component; Type 3 is entirely intramural but touches the endometrium without distorting the cavity

Explanation

FIGO PALM-COEIN classification: Type 0 — pedunculated intracavitary; Type 1 — sessile submucous, <50% intramural; Type 2 — sessile submucous, ≥50% intramural (still distorts cavity); Type 3 — entirely intramural, in contact with the endometrium but without endometrial cavity distortion; Type 4 — entirely intramural, no endometrial or serosal contact. Type 2 is thus the deepest submucous category with >50% myometrial extension, while Type 3 is the most superficial of the intramural group.

Reference: Shaw's Textbook of Gynaecology, 17th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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