What are group 1 aplasia cutis congenita (ACC) malformations?

Updated: Jun 17, 2020
  • Author: Chris G Adigun, MD, FAAD; Chief Editor: William D James, MD  more...
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This is scalp aplasia cutis congenita without multiple anomalies. [9] Nearly 86% of all solitary lesions occur on the scalp. A collar of hair is often seen around the defect, particularly with membranous aplasia cutis. It can be autosomal dominant [10] or sporadic. [11]

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