SkIndia Quiz 37: A Persistent Plaque in the Pubic Region
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چکیده
© 2017 Indian Dermatology Online Journal | Published by Wolters Kluwer Medknow A 70‐year‐old man presented with an itchy eczematous well‐defined plaque of size 10 × 7 cm involving the pubic region, penis, and scrotum. It was eroded at places and covered with grayish‐white scales and crusts [Figure 1]. The lesion had persisted almost unchanged for 15 years despite treatment. Skin biopsy stained with hematoxylin and eosin stain showed characteristic features [Figure 2a and b]. Special stain with mucicarmine was positive [Figure 3]. Immunohistochemistry markers were positive for CK7 and negative for CK20 and CEA [Figure 4]. Whole body positron emission tomography scan did not reveal any abnormality. Question
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