@entity189 ( XXXX ) of the scalp with extensive pilar differentiation.

@entity5 @entity1 @entity10843 @entity189
BACKGROUND: @entity189 ( @entity189 ), or sclerosing sweat duct @entity5 , is an uncommon, locally aggressive @entity5 . It typically involves the upper lip or face of middle-aged adults and rarely involves the scalp. It is characterized histologically by both pilar and eccrine differentiation and is associated with frequent perineural invasion. @entity189 is frequently misdiagnosed because of its bland and asymptomatic clinical presentation. In addition, its defining histologic features may be missed with a superficial biopsy. OBJECTIVE: To describe a case of @entity189 in the scalp treated with Mohs surgery. We describe a case with extensive pilar differentiation and clear cell changes. In addition, the clinical and histologic characteristics of this rare @entity5 are reviewed. METHODS: Mohs micrographic surgery (MMS) was performed on this @entity5 . RESULTS: The @entity5 was successfully excised in one surgery (five stages) and is without evidence of recurrence at 18 months. CONCLUSION: We present a case of @entity189 of the scalp in a 64-year-old white @entity1 treated successfully with @entity10843 .
