Renal mass

renal mets to bone, attenuation

ALWAYS LYTIC

Clear cell RCC

most common subtype

associated with VHL

cystic mass with enhancing component

enhance equal to cortex on corticomedullary phase

Papillary RCC

second most common overall

most likely in transplanted kidney

less aggressive than clear cell

less vascular, does not enhance equal to cortex on CM phase

T2 dark

Medullary RCC

associated with Sickle Cell Trait

highly aggressive, large and mets by time of diagnosis

younger patient

Chromophobe RCC

Birt Hogg Dube

Translocation RCC

paeds case with hx of chemo

Renal Lymphoma

most common primary to involve kidney

maintains reniform shape

Renal Leukemia

leukemia most likely to mets to kidney

cortically based hypodense lesion

Renal Angiomyolipoma(AML)

most common benign tumour in kidney

contains macroscopic fat

if lipid poor- T2 Dark

associated with

• Tuberous Sclerosis

• bleed in >4cm

• NEVER CALCIFIES—>RCC

Oncocytoma

second most common benign tumour

Solid mass with central scar on CT/MR

hotter than renal cortex on PETCT

spoke wheel vascular pattern on USS

Bilateral oncocytoma=birt hog dube

Multilocular Cystic Nephroma

no solid components

protrudes into renal pelvis

bimodal occurrence(5yo and 40yo)

Wunderlich syndrome

spontaneous renal haemorrhage

• AML

• vascular malformation

• RCC