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JOURNAL OF NEUROSURGICAL SCIENCES
A Journal on Neurosurgery
Indexed/Abstracted in: e-psyche, EMBASE, PubMed/MEDLINE, Neuroscience Citation Index, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,651
Journal of Neurosurgical Sciences 2004 March;48(1):37-41
Malignant prolactinoma: is metastasis a must? Clinico-pathologic and immunohistochemical study of a case
Vaishaya S., Tondon A.
Department of Neurosurgery All India Institute of Medical Sciences New Delhi, India
Pituitary carcinomas are rare tumors which have been conventionally defined as primary adenohypophyseal tumors with cerebrospinal or extracranial metastases. According to the current criteria even a highly invasive tumor without metastases is not considered as malignant. A case of pituitary adenoma is reported with an unproven site of metastasis but with rapid increase in prolactin levels (35 000 ng/ml), showing extensive invasion on radiology, and pathological and immunohistochemical studies indicating a highly mitotic variety of tumor. On the basis of this case we want to emphasize that extracranial metastasis is not a must to label a pituitary adenoma as a malignant tumor. Such aggressive behavior of the tumor and clinico-pathological course in itself should be sufficient for the tumor to be labeled as malignant.