Hemisacrum

What it means

A hemisacral defect involving the sacral vertebrae S2 to S5. In hemisacrum, the first sacral vertebra is intact and there is agenesis involving only S2-S5.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category