microcystic adnexal carcinoma
Histologic Features
- A proliferation of squamoid lobules with
- Many microcysts containing lamellated keratinaceous material
- Foci of squamous metaplasia
- Small ductal differentiation containing inspissated secretion
- Tubular structures containing amorphous secretion
- Infiltration of the neoplasm into the deep collagenous dermis and subcutis
- Perineural infiltration
- Perivascular infiltration
- Deep permeation of muscles
- Foci of calcification
- Clear cell changes
Updated Wednesday, July 31, 2013 8:30:48 PM