The role of radiotherapy in the complex treatment of mycosis fungoides; a case report

Abstract

Introduction. Mycosis fungoides (MF) is the most common form of primary cutaneous T-cell lymphoma. Radiotherapy induces excellent response rates in the treatment of localized or extensive lesions of MF, both as monotherapy and as part of a multidisciplinary treatment. Total skin irradiation with electrons or protons is available in a limited number of medical centers and is mainly used in patients with extensive MF. Case presentation. It is presented the case of a 47-year-old patient who developed erythematous papules and plaques on the chest, upper limbs, face and scalp, initially diagnosed as chronic eczema and treated with systemic corticotherapy, antihistamines and dupilumab. Under treatment, the lesions progressed with the appearance of tumorous formations on the scalp and face, some of them ulcerated. Thus, additional (histopathological and immunohistochemical) tests were performed and established the diagnosis of MF. As a result, treatment with methotrexate and narrow-band UVB was initiated, subsequently associated with radiotherapy on the scalp and face lesions (right frontal, right parietal, left oral commissure), 30 Gy to each area. During radiotherapy, the patient developed second grade radiodermatitis associated with radiomucositis, but with a significant reduction in the surface area of the lesions until their disappearance. Conclusions. Radiotherapy can be used in all stages of MF, being useful both for alleviating symptoms and eradicating the disease, meaning that the potential of this form of treatment needs to be further exploited and investigated.

Keywords

• mycosis fungoides
• radiotherapy
• t-cell lymphoma