Unusual presentation of mycosis fungoides as pigmented purpura with malignant thymoma.

Cather, J C; Farmer, A; Jackow, C; Manning, J T; Shin, D M; Duvic, M · J Am Acad Dermatol · 1998

case_report · Level V

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Abstract

Thymoma is known to be associated with many lymphoreticular and nonlymphoreticular tumors. A woman who presented with patch stage mycosis fungoides with skin lesions resembling a pigmented purpura was found to have an anterior mediastinal mass on routine staging evaluation. A core needle biopsy of the mass revealed a lymphocyte predominant malignant thymoma. Review of the literature reveals many diseases with dermatologic manifestations associated with thymoma; however, malignant thymoma coexisting with mycosis fungoides has not previously been reported.

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