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A Firm Red-Brown Plaque on the Arm—Quiz Case
Elizabeth A. Quigley, MD;
Ashfaq A. Marghoob, MD;
Klaus J. Busam, MD;
Chih-Shan Jason Chen, MD, PhD
State University of New York, Stony Brook (Dr Quigley), and Memorial Sloan-Kettering Cancer Center, New York, New York (Drs Marghoob, Busam, and Chen)
Arch Dermatol. 2009;145(5):589-594.
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REPORT OF A CASE
A 61-year-old white woman with a history of melanoma presented with an enlarging and asymptomatic lesion on her left arm for several months. Physical examination of the left deltoid revealed a 1.9 x 0.7-cm asymmetric, erythematous, and faintly brown plaque that was partially firm (Figure 1). Under dermoscopy, a patchy network and dotted blood vessels were observed. An excisional biopsy was performed for diagnosis (Figure 2 and 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: MICHAEL E. MING, MD, MSCE; ASSISTANT SECTION EDITORS: CARRIE ANN R. CUSACK, MD; SENAIT W. DYSON, MD; JACQUELINE M. JUNKINS-HOPKINS, MD; VINCENT LIU, MD; KARLA S. ROSENMAN, MD
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