PMC4809452_01
Large subcutaneous plaque on the left medial thigh.
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Physical examination found a large annular plaque on the medial left thigh with an erythematous mildly tender border (Fig 1).
Large migratory plaque now observed on the left shin.
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At the second clinical visit, the lesion appeared to have migrated from the left medial thigh to the left lower limb (Fig 2).
Low-power image shows septal involvement of the subcutaneous tissue. The dermis shows increased dense vascularity.
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A punch biopsy of the new tender area found mixed histopathologic findings consistent with the clinical course (Figs 3 and 4).
Inflammatory infiltrates extending into the subcutis with numerous histiocytes and lymphocytes in a septal distribution.
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A punch biopsy of the new tender area found mixed histopathologic findings consistent with the clinical course (Figs 3 and 4).