Tectal beaking (midbrain)

Tectal beaking refers to fusion of midbrain colliculi into a single beak pointing posteriorly and invaginating into the cerebellum. It is seen with a Chiari type II malformation.

Terminology

The term bird's beak sign is used in a number of other contexts: see bird beak sign (disambiguation)

Inspired signs
Share article

Article information

rID: 24247
Section: Signs
Synonyms or Alternate Spellings:
  • Heart shape tectum

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1: tectal beaking
    Drag here to reorder.
  • Drag
    Case 2
    Drag here to reorder.
  • 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.