MR Imaging Appearance of Ruptured Rathke Cleft Cyst and Associated Bone Marrow Enhancement.

Area of Science:

• Radiology
• Neuroimaging
• Endocrinology

Background:

• Rathke cleft cysts are common pituitary lesions.
• Ruptured Rathke cleft cysts are uncommon and present nonspecific imaging findings.
• Distinguishing ruptured Rathke cleft cysts from other cystic lesions is challenging.

Purpose of the Study:

• To identify specific imaging features that can help differentiate ruptured Rathke cleft cysts from other cystic pituitary lesions.
• To describe the MR imaging findings in a cohort of ruptured Rathke cleft cysts.

Main Methods:

• Retrospective review of 7 cases of ruptured Rathke cleft cysts.
• Analysis of MR imaging characteristics, focusing on findings within the sella and adjacent structures.
• Comparison with imaging features of other cystic pituitary lesions.

Main Results:

• Ruptured Rathke cleft cysts demonstrated characteristic imaging findings.
• Basisphenoid bone marrow enhancement below the sella was observed in these cases.
• This enhancement pattern may serve as a distinguishing feature.

Conclusions:

• Basisphenoid bone marrow enhancement is a potential imaging biomarker for ruptured Rathke cleft cysts.
• This finding could improve diagnostic accuracy in differentiating these lesions from other cystic pituitary pathologies.
• Further research is warranted to validate these imaging findings.