ACC clinical phenotype | Proposed etiology | Other associations |
Cranial and facial membranous aplasia cutis | Developmental: Incomplete closure of embryonic fusion lines | Organoid nevi |
Cranial, large, midline, irregular-shaped defects | Developmental: Incomplete closure of neural tube and genetic | Bone defects, hydrocephalus, arteriovenous fistula, sinus thrombosis |
Reticulated facial lesions | Genetic: Chromosomal abnormality | X-p22 deletion syndrome |
Truncal or extremity, stellate aplasia cutis | Vascular disruption | Fetus papyraceus, placental insufficiency, gastrointestinal atresia, abdominal malformations (gastroschisis, omphalocele) |
Extremity, angulated defects | Increased skin fragility | Epidermolysis bullosa |
Small, scar-like defects | Maternal infection | Varicella, herpes simplex virus infections |
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