Presentation
Panhypopituitarism.
Patient Data
Age: 45 years
Gender: Male
From the case:
Rathke's cleft cyst - claw sign
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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.
From the case:
Rathke's cleft cyst - claw sign
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Note the "Claw" sign = enhancing rim of compressed pituitary surrounding non-enhancing 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 non-neoplastic cysts
The claw sign has also been used in radiological literature with respect to Wilms tumor.
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