According to the FIGO PALM-COEIN classification of abnormal uterine bleeding, in which category does adenomyosis fall?
- A P (Polyp)
- B L (Leiomyoma)
- C A (Adenomyosis) ✓
- D M (Malignancy and hyperplasia)
Correct answer: C. A (Adenomyosis)
Explanation
In the FIGO PALM-COEIN classification, adenomyosis is categorized as 'A' (second letter of the acronym). 'L' is for leiomyoma (fibroids), which is further subclassified. The structural causes (PALM) include Polyp, Adenomyosis, Leiomyoma, and Malignancy/hyperplasia. The non-structural causes (COEIN) include Coagulopathy, Ovulatory dysfunction, Endometrial, Iatrogenic, and Not yet classified.
Reference: FIGO Classification System for Causes of Abnormal Uterine Bleeding (2011)
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