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Erythematous Plaques Involving Calves—Quiz Case
Charles Chiang, MD;
Brook Brouha, MD, PhD;
Laura Romero, MD
University of California, San Francisco (Dr Chiang); University of California, San Diego (Drs Brouha and Romero); and Veterans Affairs San Diego Medical Center, San Diego (Dr Romero)
Arch Dermatol. 2009;145(9):1053-1058.
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REPORT OF A CASE
A 51-year-old man presented with a 7-month history of mildly painful plaques involving his bilateral calves. Pertinent medical history included venous insufficiency, non–insulin-dependent diabetes mellitus and Graves disease with exophthalmos, treated with radioactive ablation in 2002. He had had normal thyroid gland function and had been receiving a stable dose of levothyroxine sodium for 3 years.
On physical examination, the patient had nonpitting, lightly erythematous plaques involving the posterior legs (Figure 1; the arrow indicates the Achilles tendon). There was no warmth, drainage, or excoriation. Punch biopsy specimens taken from his left calf were stained with hematoxylin-eosin (Figure 2) and Alcian blue (Figure 3).
Figure appears in full text version.
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Figure appears in full text version.
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Figure appears in full text version.
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What is your diagnosis?
SECTION EDITOR: MARY S. STONE, MD; ASSISTANT SECTION EDITORS: SOON BAHRAMI, MD; CARRIE ANN R. CUSACK, MD; SENAIT W. DYSON, MD; MOLLY A. HINSHAW, MD; VINCENT LIU, MD
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Erythematous Plaques Involving Calves—Diagnosis
Arch Dermatol. 2009;145(9):1053-1058.
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