Catalog

Marie Unna congenital hypotrichosis

No MMS code

Link to WHO Definition

Marie Unna congenital hypotrichosis – http://id.who.int/icd/entity/716463640

Marie Unna hereditary hypotrichosis is a rare isolated anomaly of the hair that may be normal, sparse or absent at birth. When present it remains fine and sparse in the first few years of life, then typically during the third year of life it becomes coarse and twisted irregularly. When the hair is absent at birth it may regrow at this stage. After puberty, progressive loss begins at the vertex and produces a severe scarring atrophy.