Pituitary adenoma, null cell type with necrosis.

Case contributed by A.Prof Frank Gaillard

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Case Discussion

Null cell adenoma with incomplete resection.

Final Diagnosis:

Pituitary tumor: Pituitary adenoma, null cell type.

Gross Description:

Specimen is received in one container labelled with patient's demographics and LARGE PITUITARY TUMOR and consists of four small hemorrhagic tan tissue fragments aggregating to 6 x 4 x 2 cm.

The second specimen is received in a plastic container labelled with the patient's demographics and SUPRASELLAR TUMOUR. It consists of an aggregate of tan and hemorrhagic tissue fragments measuring 5 x 3.5 x 0.4 cm.

Microscopic Description:

Sections show fragments of pituitary adenoma: tumor cells are arranged in trabeculae, acinar structures and diffuse sheets. Immunohistochemical studies show negative immunoreactivity for ACTH, GH, LH, FSH,TSH and prolactin.

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Case Information

rID: 4976
Case created: 12th Nov 2008
Last edited: 7th Dec 2015
Inclusion in quiz mode: Included

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