Department of Dermatology, University Hospital Erlangen, Hartmannstr. 14, D-91052 Erlangen, Germany, Department of Pathology, Friedrich-Alexander University Erlangen-Nuremberg, Krankenhausstr. 8-10, 91054 Erlangen, Germany
Mycosis fungoides (MF) represents a low-risk, cutaneous, non-Hodgkin, T-cell lymphoma with a wide spectrum of clinicopathological manifestations and therefore may mimic a number of other dermatoses. Sometimes the clinical diversity makes the diagnosis of MF, and especially its atypical forms, challenging. We report on an 18-year old male patient, who had been previously diagnosed with palmoplantar eczema. Clinical, histopathological, immunohistochemical and molecular findings revealed an atypical case of MF.