Pituitary adenoma, null cell type with necrosis.
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Null cell adenoma with incomplete resection.
Pituitary tumor: Pituitary adenoma, null cell type.
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.
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.