• US formation is an uncommon and under-reported event after complex NSS. • Risk factors appear to include tumour complexity, imperative indications, mid- or lower pole location, postoperative urinary leak and haemorrhage. • Although uncommon, postoperative US can occur after NSS for complex renal masses, necessitating patient counselling and diligent postoperative surveillance.
Division of Urologic Oncology, Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
BJU Int. 2012 Feb;109(4):539-43
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