References. James WD, Berger TG, Elston DM. Diseases of the skin appendages. In: Andrews’ Diseases of the Skin: Clinical Dermatology. 10th ed. Philadelphia, Pa ...

The patient presented with her hair in fairly tight braids. At the vertex of the scalp is a dime-sized area of alopecia; no hair follicles are present under dermoscopy. There are no exclamation ...

Two boys with similar patches of hair loss—one ... The differential diagnosis of AA includes trichotillomania ... and the presence of “exclamation point” hairs.1 If the type of ...