Hair Shaft Abnormalities — Flashcards

During _____ phase of hair cycle, the proximal end of the hair shaft keratinizes to form a club-shaped structure and the lower part of the follicle involutes by apoptosis.

_____ is characterized by a ball and socket appearance of hair in trichoscopy

_____ deficiency (mineral) is associated with decreased adult hair (axillary, facial, pubic)

Trichorrhexis invaginata is caused due to _____ syndrome

Muehrcke's lines on nails are specific for _____ and is due to pathology in the nail bed

_____ sign is melanonychia with the pigmentation of proximal nail fold seen in subungual melanoma

_____ is a neurocutaneous disorder associated with ungual fibromas, which are flesh-colored lumps emerging from nail folds

Punctate leukonychia is caused by minor trauma to the nail _____ in manicures or also seen in alopecia areata

_____ lines are a manifestation of chronic arsenic or thallium intake and is due to pathology in nail matrix

_____ sign is melanonychia with the pigmentation of proximal nail fold seen in subungual melanoma