Perinephric abscess

Case contributed by Mohammad Taghi Niknejad
Diagnosis almost certain

Presentation

Right flank pain and fever.

Patient Data

Age: 55 years
Gender: Male
ct

A 70×50 mm thick-walled cyst-like lesion is noted superomedial to the right kidney causing pressure effect on adjacent renal parenchyma. In addition, the right hemidiaphragm in the vicinity of the lesion is thickened and a small amount of pleural effusion is noted at imaged portions of the right hemithorax.

Several prominent lymph nodes are also seen at the para-aortocaval region.

Case Discussion

Features on CT scan are most likely compatible with perinephric abscess formation

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