Presacral teratoma

What it means

A type of sacrococcygeal teratoma located anterior to the sacrum and entirely inside the body (Altman type IV).

Sacrococcygeal teratomas are thought to originate from multipotential cells in Henson's node, which migrates caudally to rest in the coccyx.

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

Also called: Altman type IV sacrococcygeal teratoma · Retrorectal teratoma