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Article Abstract
Background: The sellar and parasellar region is an area where many heterogenous neoplastic, inflammatory, developmental and vascular pathologies can occur. Differentiation among various diseases may be not easy, because many of these lesions could mimic the clinical, endocrinologic and radiologic features of pituitary adenomas, which can be the cause of possible misdiagnosis.
Case Report: We report a case of a 52-year-old man who presented with a persistent headache for the last 5-6 years and visual disturbances. Endocrine system examinations disclosed only insignificant hyperprolactinaemia. The MRI revealed an hypointense area - its presentation was similar to that of pituitary adenoma. The correct diagnosis, i.e. a colloid cyst of the pituitary gland, was made intraoperatively.
Conclusions: Colloid cyst of the pituitary gland is a very rare pathology but it must be considered if there is an hypointense area between the anterior and posterior pituitary lobe in MR imaging without contrast enhancement and if the patient presents with headaches, hypopituitarism and hyperprolactinaemia.
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