Marie-Unna hereditary hypotrichosis or autosomal recessive hereditary hypotrichosis with woolly hair: the diagnostic dilemma of labeling cases with hypotrichosis.

摘要

To the Editor:We read with interest the recent report about the case affected with hypotrichosis (1) but found that the clinical and laboratory findings that the authors provided did not support the conclusive diagnosis of Marie-Unna hereditary hypotrichosis (MUHH).The authors mentioned that the diagnosis of MUHH was made after consultation with a hair expert and medical genetics, but they did not explain why those experts favor this diagnosis.The hair thinning in the case presented began in the patient's early teenage years and accelerated thereafter, which is not typical for MUHH, in which the hypotrichosis is noticeable at birth.