This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

Dromedary hump

Dromedary humps are prominent focal bulges on the lateral border of the left kidney. They are normal variants of the renal contour, caused by the splenic impression onto the superolateral left kidney.

Dromedary humps are important because they may mimic a renal mass, and as such is considered a renal pseudotumour.

Radiographic features

The feature that establishes normality is that the calyces underlying the hump extend further laterally into the hump than the other calyces 3.

A dromedary hump must have the same radiological features as the adjacent cortex, whatever the modality.

Nuclear medicine

DMSA (dimercaptosuccinic acid) isotopic examination can also be used to confirm the presence of a dromedary hump and exclude malignancy as the former shows normal uptake whereas the latter does not 1.

Etymology

Named after the dromedary camel (see Figure 2), which is a well known member of the camel family that has a single hump.


Related articles

Abdominal and pelvic anatomy

Updating… Please wait.
Loadinganimation

Alert_accept

Error Unable to process the form. Check for errors and try again.

Alert_accept Thank you for updating your details.