Cutaneous lymphomas are very insidious neoplasms whose primary symptoms are easily neglected. They are defined as primary cutaneous lymphomas when the lymphomatous proliferation is limited to the skin and no lymph node, bone marrow or internal organ involvement is observed at diagnosis. Patients with cutaneous lymphomas are for many years treated by dermatologists, who suspect allergy or advanced psoriasis in their patients. Other symptoms, such as asthenia, reduced body weight, night sweats, dyspnoea, cough, persistent pruritus or enlarged lymph nodes, are initially considered to be a sign of infection. In a vast majority of cases, lymphoma is diagnosed based on histopathological evaluation of skin specimens, followed by lymph node assessment. The paper presents a case of a patient referred to the Surgical Oncology Outpatient Clinic in the Pope John Paul II Provincial Hospital in Bełchatów (Poland).