Pericallosal lipoma

Case contributed by Dr Mohamed Abdel-Tawab Mohamed

Presentation

Patient presented with headache and vomiting.

Patient Data

Age: 12 years
Gender: Male
Modality: MRI

Curvilinear corpus callosal lipoma is seen interhemispheric in the pericallosal sulcus measuring 0.65 cm in thickness, 4 cm in length and 0.5 cm in height.

It exhibits T1 bright signal, less bright signal in T2, suppresses on both T1/SPIR as well as T2/FLAIR with fat saturation. It shows chemical shift artifact around in T1WI. No diffusion restriction

Corpus callosal dysgenesis evident.

Normal signal intensity of both cerebral hemispheres with no definite focal abnormalities.

Normal size and configuration of the ventricular system.

Normal posterior fossa.

Case Discussion

Pericallosal lipoma is of two types;

  • Curvilinear type as in this case which is curvilinear in shape taking the shape of the pericallosal sulcus. Its thickness is less than 1 cm, in this case is 0.65 cm
  • Tubulonodular type which is rounded or tubular in shape with thickness more than 1 cm.

Common association is corpus callosal agenesis or dysgenesis as in this case.

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Case Information

rID: 52664
Case created: 16th Apr 2017
Last edited: 23rd Apr 2017
System: Head & Neck
Inclusion in quiz mode: Included

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