Fine-needle aspiration biopsy of mycosis fungoides presenting as an ulcerating breast mass.

A patient with previously diagnosed Hodgkin's disease presented with ulcerating lesions on her scalp and breast. Fine-needle aspiration of the breast lesion revealed convoluted cells consistent with mycosis fungoides. Review of the patient's previously obtained lymph node biopsy specimens revealed a diagnosis of mycosis fungoides rather than Hodgkin's disease. Better communication between hospitals, pathologists, and clinicians may have prevented the erroneous original diagnosis of Hodgkin's disease in this patient.