Pituitary xanthogranuloma

Case contributed by Hisham Jaber
Diagnosis almost certain

Presentation

Presented with a headache. Blood workup showed low T4 and normal TSH.

Patient Data

Age: 13 years
Gender: Female
mri
Sagittal
T2
Coronal
T1
Sagittal
T1
Coronal
T1 C+
Sagittal
T1 C+
Sagittal
T1 C+
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Info

Rim-enhancing sellar mass with mild suprasellar bulging and stretching of the pituitary infundibulum. It has intermediate T1 and T2 signal centrally. There is compression of the optic chiasm.

3 months later

mri
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Info

A single image from an MRI performed 3 months later showed further enlargement of the pituitary mass to 16 mm (from 13 mm).

Case Discussion

The sellar lesion increased in size on sequential imaging. It was then resected and pathology report confirmed pituitary xanthogranuloma.

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