[Hamartoma caused by hyperplasia of the arrectores pilorum in a 1-month-old infant].
D005260:Female; D006222:Hamartoma / Q000209:etiology*; D006801:Humans; D006965:Hyperplasia; D007231:Infant, Newborn; D008161:Lumbosacral Region; D009135:Muscular Diseases / Q000150:complications*; D012878:Skin Neoplasms / Q000209:etiology*
Hamartome par hyperplasie des muscles arrecteurs des poils chez un nourrisson d'un mois.