Renal pseudotumours simulate a tumour on imaging but are composed of non-neoplastic tissue.
Differential diagnosis
There are many examples 1-3:
Developmental
Infectious and inflammatory
Vascular
-
renal haematoma
subepithelial pelvic haematomas (Antopol-Goldman lesions) 4
anticoagulant-induced subcapsular haemorrhage
Miscellaneous
regenerating nodule after reflux