aplasia cutis congenita
Pronunciation: ah-PLAY-zee-ah KOO-tis con-JEN-ih-tah
A congenital absence of skin, most commonly affecting the scalp vertex, presenting as a well-demarcated defect.
Full Definition
Aplasia cutis congenita is a rare congenital condition characterized by localized absence of skin, most frequently occurring on the scalp vertex as a solitary defect. The lesions present as well-demarcated, oval or round areas ranging from superficial erosions to full-thickness defects involving deeper structures. In pediatric dermatology practice, recognition of this condition is important for appropriate wound management and to identify potential associations with underlying conditions such as trisomy 13, limb defects, or vascular malformations. Documentation should include size, depth, location, and any associated anomalies to guide treatment planning and genetic evaluation.
Usage
Usage note: Document size and depth carefully as this affects treatment approach and prognosis.
In Context
- "The 2-cm aplasia cutis congenita on the posterior scalp showed good healing with conservative management." — newborn examination note
- "Genetic consultation was recommended given the large aplasia cutis congenita with associated limb defects." — pediatric surgery consultation