Abstract According to the World Health Organization classification of pituitary tumors, only
tumors with systemic metastasis must be considered as carcinomas. Invasive tumors with …

Pituitary carcinomas are extremely rare. In general, the initial clinical, biochemical, and
histological characteristics are of minimal utility in distinguishing benign adenomas from …

OBJECTIVE Prolactin‐secreting tumours of the pituitary almost never metastasize
extracranially. However, we have recently seen three such patients, whose presentation …

A 59-year-old male patient was transnasally operated on because of a pituitary adenoma
with hypopituitarism. A second operation and X-ray therapy followed a half year later due to …

Purpose Aggressive prolactinomas are defined as radiologically invasive tumors which
cannot be cured by surgery, and that have an unusually rapid rate of tumor growth despite …

A 62-year-old man had a malignant prolactin-secreting pituitary adenoma. The tumor was
initially resected through a transfrontal approach. Recurrence six years later was manifested …

Pituitary carcinomas are very rare tumors, nearly always presenting as widely invasive
masses, although the hallmark of these lesions is the finding of distant metastases. One third …

Although most pituitary tumors are benign, some are invasive or aggressive. In the absence
of specific markers of malignancy, only tumors with metastases are considered malignant …

A 32-year-old female patient with a primary adenohypophyseal neoplasm that rapidly
progressed to a fatal outcome is presented. The time interval between her admission to the …

Prolactin-secreting tumors (prolactinomas) represent the most common pituitary tumor type,
accounting for 47–66% of functional pituitary tumors. Prolactinomas are usually benign and …