Giant renal cell carcinoma in a patient with ipsilateral lower limb hypertrophic lichen planus; Case report and literature review

Renal cell carcinoma is the most common type of primary urogenital cancer, usually resistant to radiotherapy and chemotherapy. Hypertrophic lichen planus is an inflammatory dermatosis characterized by the presence of papulosquamous and intensely pruritic lesions. The association of these two conditions is unusual, being reported in the specialized literature only in a few rare cases with the onset of lichenoid lesions after patients have undergone various forms of treatment. The case of a 62-year-old male patient who was admitted for severe abdominal pain due to a giant renal tumor associated with a hypertrophic plaque located on the anterior part of the left calf is presented. After (clinical, biochemical, imaging) diagnosis, surgery was performed for en bloc removal of the entire mass, adrenal gland, and spleen. The histopathological exam established the diagnosis of a moderately differentiated T2b clear cell Grawitz tumor, without regional lymph node metastasis (stage II). The patient continued local corticosteroid therapy in the hospital for hypertrophic lichen planus lesions, being referred to the oncology department after discharge.