Fig. 2

Radiological features of pituicytomas. a. The tumor is completely located in the intrasellar region. b. The tumor is located in the intrasellar-suprasellar region. c. The tumor is completely located in the suprasellar region. d. Pituicytoma invading the right cavernous sinus. The lesion surrounded the internal carotid artery, and the optic chiasm was not compressed. e. The optic chiasm was oppressed and elevated by the tumor, and the cavernous sinus was not involved. f. Pituicytoma invading the right cavernous sinus; the optic chiasm was compressed, and the tumor was accompanied by cystic degeneration