pituicytoma

[pĭ-tōō′ĭ-sī-tōmə]
n.
  1. A gliogenous neoplasm derived from pituicytes and marked by cells with long branching processes that form a complex network of cytoplasmic material.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.