Table of Contents
Definition / general | Gross images | Microscopic (histologic) description | Microscopic (histologic) images | Differential diagnosisCite this page: Ehdaivand S. Endometrioid cystadenoma / adenofibroma. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/ovarytumorendometadenofibroma.html. Accessed October 20th, 2021.
Definition / general
- No recurrence or deaths in patients with atypia (Am J Surg Pathol 1985;9:205)
- 25% associated with endometriosis
Gross images
AFIP images
Mostly fibromatous, small and medium sized cysts
With endometriosis
Microscopic (histologic) description
- Cystadenoma:
- Cystic tumor with endometroid features
- May have squamous morules, ciliated or mucinous features
- No cytologic atypia, no architectural complexity
- Benign lesions may be adenofibroma, adenoma or cystadenoma
- Adenofibroma:
- Endometroid and fibroma-like features; may have occasional mitotic figures
- There should be no cytologic or architectural atypia
Microscopic (histologic) images
AFIP images
Irregularly shaped glands and fibromatous stroma
With squamous differentiation
Differential diagnosis
- Endometriosis: will have endometrial stroma
