Skin, Steatocystoma

Details
Disease Category
Gender
Age
31 years
Organ System/Discipline
Diagnosis
Steatocystoma
Clinical History

Right forearm skin biopsy from a 31 year-old woman. The patient had multiple subcutaneous nodules.

Case Discussion

Steatocystoma, is a benign small cyst commonly found on limbs, chest, face, and back. They are more prevalent in females than male, and can be sporadic or display autosomal dominant inheritance.

On histology, a large, empty cyst lined by squamous epithelium with cuticular lining can be observed. Sebaceous glands can often be seen in close proximity or continuous with the cyst wall. The granular layer is often minimal or absent. Steatocystoma simplex refers to one cyst, while multiple cysts are called steatocystoma multiplex.

Image Contributors
Yu, Y., Sade, S.

Cite

Yu, Y., Sade, S. Skin, Steatocystoma. Digital Laboratory Medicine Library, Dept of Laboratory Medicine & Pathobiology, University of Toronto. Published . Accessed December 17, 2025. https://dev.dlml.cflabs.ca/image/skin-steatocystoma-lmp42947