Synonyms

Lesion involving perirenal space

May Be Caused by

 Common

Hemorrhage

Invasive colon cancer

Lymphoma of kidney

Pancreatitis

Perinephric abscess

Renal cell carcinoma

Urinoma

Wilms tumor

 Uncommon

Adrenal adenoma

Adrenal cyst

Adrenocortical carcinoma

Dilated perirenal lymphatics

Filariasis with chyluria

Lipomatosis

Lymphocele

Lymphoma

Neuroblastoma

Pheochromocytoma

Retroperitoneal fibrosis

Sarcoma

Spindle cell neoplasm of retroperitoneum