Rathke's cleft cyst: claw sign

Case contributed by Dr Amro Omar

Presentation

Panhypopituitarism.

Patient Data

Age: 44
Gender: Male
Modality: MRI

Non enhancing cystic sellar mass with hypointense non enhancing hypointense intracystic nodule and claw sign in post contrast study

Incidental finding of chronic sphenoid sinusitis

Modality: MRI

Note the "Claw" sign = enhancing rim of compressed pituitary surrounding nonenhancing cyst

Case Discussion

"Claw" sign = enhancing rim of compressed pituitary surrounding non-enhancing cyst.

Rathke cleft cyst is a nonneoplastic cyst arising from remnants of embryonic Rathke cleft

Top differential diagnoses:

  • Craniopharyngioma

  • Cystic pituitary adenoma

  • Other nonneoplastic cyst

The Claw sign has also been used in radiological literature with respect to Wilms tumour.

PlayAdd to Share

Case Information

rID: 32787
Case created: 14th Dec 2014
Last edited: 1st Oct 2015
Inclusion in quiz mode: Included

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.