Case history
Case history #1
A 25-year-old man presents with progressive hair loss at the vertex area with hair thinning at both temporal areas for the last 3 years. He is otherwise healthy and does not take any medications. On physical examination, there is diffuse hair loss over the central scalp, with frontal and bitemporal recession. He is estimated as type IV according to the Norwood-Hamilton classification. There is no clinical evidence of inflammation or fibrosis. Hair-pull test is negative. [Figure caption and citation for the preceding image starts]: Hair-pull testFrom the collection of Paradi Mirmirani MD; used with permission [Citation ends].
Case history #2
A 43-year-old woman presents with a 9-month history of increased hair shedding with a reduction in hair volume over the mid-frontal scalp. She is otherwise healthy and does not take any medications, including oral contraceptives. On physical examination the central-scalp density is estimated as type II according to the Ludwig classification for female-pattern baldness, with moderate thinning and preserved frontal hairline. No temporal recession is noted. The hair-pull test is negative. No other causes of hair loss are identified.
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