Pineal epidermoid cyst
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Findings
On CT :
Well defined midline oval CSF density mass lesion in region of quadrigeminal cistern and pineal gland, closely abutting 3rd ventricle anteriorly. no contrast enhancment on post contrast images.
On MRI :-
Well defined midline oval cystic lesion in region of quadrigeminal cistern and pineal gland. Lesion shows heterogeneously hypointense signal on T1 and hyperintense on T2 with few small hypo intensities within. Lesion shows partial suppression on FLAIR, appear heterogeneously hypointense with multiple small hyperintensity within. Lesion shows diffusion restriction with low ADC. No SWI blooming is seen within. No edema /signal changes are seen in adjacent brain parenchyma. No hydrocephalus seen at present.
Cystic lesion is closely abutting 3rd ventricle anteriorly. Cystic lesion is closely abutting tectum plate postero-inferiorly.
Well defined midline oval CSF density mass lesion in region of quadrigeminal cistern and pineal gland, closely abutting 3rd ventricle anteriorly. no contrast enhancment on post contrast images.
On MRI :-
Well defined midline oval cystic lesion in region of quadrigeminal cistern and pineal gland. Lesion shows heterogeneously hypointense signal on T1 and hyperintense on T2 with few small hypo intensities within. Lesion shows partial suppression on FLAIR, appear heterogeneously hypointense with multiple small hyperintensity within. Lesion shows diffusion restriction with low ADC. No SWI blooming is seen within. No edema /signal changes are seen in adjacent brain parenchyma. No hydrocephalus seen at present.
Cystic lesion is closely abutting 3rd ventricle anteriorly. Cystic lesion is closely abutting tectum plate postero-inferiorly.
Diagnosis
Pineal gland Epidermoid cyst
Dr Sheenu Agrawal DNB is a Consultant Radiologist from with experience of 5-8 years post-graduated from Sagar Apollo Hospital, Bangalore. Specialized in Reporting of CT-SCAN , MRI , MAMMOGRAM cases with expertise in Neuro-imaging , Spine-imaging , Musculoskeletal , Joints , Stroke-imaging , Breast-imaging
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