Korean J Dermatol.
2006 Aug;44(8):1034-1036.
A Case of Lymphangiectatic Pilomatricoma
- Affiliations
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- 1Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea. hsjang@pusan.ac.kr
Abstract
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Pilomatricoma is a common, benign, adnexal tumor differentiating towards elements of the hair matrix and shaft. The tumor is usually a deep-seated, solitary, firm nodule with overlying normal epidermis. Lymphangiectatic pilomatricoma is a rare variant of pilomatricoma. Clinically it manifests as flaccid, thick-walled bulla with an underlying palpable, hard tumor. Histopathologically, it is a well-circumscribed dermal nodule composed of basophilic cells, shadow cells, and transitional cells. There can also be extraordinary dilatation of lymphatic vessels in the overlying dermis. We report a case of lymphangiectatic pilomatricoma on the left shoulder of 19-year-old girl which occurred after intralesional injection of steroid.