Recalcitrant Patch of Alopecia on the Scalp
Long T. Quan, MD, PhD;
J. Wade Strong, MD;
Sylvia Hsu, MD
Baylor College of Medicine, Houston, Tex
Arch Dermatol. 2000;136:259-264.
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REPORT OF A CASE
A 4-year-old white boy presented with a 3-year history of hair loss. The area of hair loss had not changed significantly since it was first noticed. The area had been treated unsuccessfully with intralesional triamcinolone and topical clobetasol ointment.
Physical examination revealed an oval 3 x 4-cm patch of nonscarring alopecia on the anterior aspect of the left side of the scalp (Figure 1). On closer examination, fine vellus hairs and a few terminal hairs could be seen. A punch biopsy specimen was obtained from the area of hair loss (Figure 2 and Figure 3).
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Figure 1.
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Figure 2.
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Figure 3.
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What is your diagnosis?
Diagnosis: Congenital triangular alopecia.
A punch biopsy specimen from the left side of the scalp showed follicular miniaturization with an absence of hair follicles in anagen phase. The overlying epidermis was atrophic, and . . . [Full Text of this Article]
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