Introduction
Mycosis fungoides (MF), although uncommon, is the most common subtype of
primary cutaneous T cell lymphoma that occurs in middle aged and elderly
adults.1 MF has an indolent course, presents as
erythematous scaly patches or plaques, and may progress to generalised
erythroderma or cutaneous tumours. MF is often misdiagnosed at early
stages due to non-specific clinical and pathological findings, and
prognosis depends on the type and extent of skin involvement and
extra-cutaneous invasion.2 Patients with MF are at
high risk for developing secondary malignancies, including hematological
malignancies.3,4 We, hereby report a case of Mycosis
fungoides misdiagnosed and associated with underlying diffuse large B
cell lymphoma.