John Libbey Eurotext

European Journal of Dermatology


Psoriasiform mycosis fungoides masquerading as tumourous plaques Volume 27, numéro 3, May-June 2017


  • Figure 1
1 Department of Dermatology,
Hokkaido University Graduate School of Medicine,
Sapporo, Japan
2 Department of Dermatology,
Sapporo Medical University School of Medicine,
Sapporo, Japan
3 Kato Naoko Skin Clinic,
Sapporo, Japan

Mycosis fungoides (MF) is the most common primary cutaneous lymphoma [1]. Psoriasiform MF, a rare variant of MF, histopathologically mimics psoriasis vulgaris (PsV), which is characterized by epidermotropism of abnormal lymphocytes [2]. Therefore, psoriasiform MF is often misdiagnosed as PsV with subsequent tumour progression [3, 4]. Conversely, when epidermal changes, such as marked acanthosis and hyperkeratosis that are frequently seen in PsV, dominate psoriasiform MF lesions, these lesions masquerade [...]