Coxa magna

What it means

Widening of the femoral head and neck.

Coxa magna can occur as a result of developmental dysplasia of the hip, Perthes disease, septic arthritis, Kniest dysplasia, among others.

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