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Congenital hypertrichosis lanuginosa
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Congenital hypertrichosis lanuginosa

Contributors: Chris G. Adigun MD, David Dasher MD, Jeffrey D. Bernhard MD, Craig N. Burkhart MD, Dean Morrell MD, Lowell A. Goldsmith MD, MPH
Other Resources UpToDate PubMed

Synopsis

Hypertrichosis lanuginosa congenita (HLC) is a rare disorder that manifests at birth with excessive lanugo hair that covers the entire body surface, with the exception of the palms, soles, and mucous membranes. Most of the reported cases have been of autosomal dominant inheritance, although sporadic cases have also been reported.

Affected patients may have an increase in the hypertrichosis during childhood, or it may actually decrease. Regardless of hair changes, the lanugo characteristic of the hair will be retained even after puberty. 

No abnormalities of other organ systems are clearly associated with the condition, but single cases with coinciding pyloric stenosis, precocious teeth, tetralogy of Fallot, growth and developmental delay, and congenital glaucoma have been reported.

Codes

ICD10CM:
Q84.2 – Other congenital malformations of hair

SNOMEDCT:
403799003 – Congenital hypertrichosis lanuginosa

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Last Updated:01/18/2022
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Congenital hypertrichosis lanuginosa
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A medical illustration showing key findings of Congenital hypertrichosis lanuginosa : Hypertrichosis, Present at birth, Widespread distribution
Clinical image of Congenital hypertrichosis lanuginosa - imageId=2110784. Click to open in gallery.
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