Paraganglioma in pituitary fossa

摘要: Paragangliomas are neuroendocrine tumors of paraganglionic tissue which extremely rare in the sellar area. We present a case paraganglioma with parasellar and suprasellar extension 70-year-old man who presented headache. CT demonstrated mass right extension. The lesion was removed subtotally via trans-sphenoidal approach. Histopathological diagnosis paraganglioma. Differential between paragangliomas unusual types pituitary adenomas, especially null-cell is made by presence cell nests (Zellballen) paraganglioma, lack immunopositivity for hormones, cytoplasmic chromogranin A neuron-specific enolase, immunonegativity cytokeratin 19, 20 endomysial antibody. In region, although rare, should be included differential diagnosis.