Squamous cell carcinoma of the renal pelvis infiltrating the kidney: rare and unusual histopathological diagnosis of pyonephrosis

Resumo

Squamous cell carcinoma of the renal pelvis infiltrating the kidney is an extremely rare entity. The preoperative diagnosis is usually not evoked because of its rarity and non-specific clinical and radiological characteristics. Most patients are diagnosed at an advanced stage and have a poor prognosis. Radical nephrectomy is the mainstay of treatment.1 We are reporting a rare case of malignant tumour of the kidney (squamous cell carcinoma) mimicking a pyonephrosis on lithiasis.