- Clusters of cells with apical granulation are found in the intestinal epithelium at the fundus of the crypts.  These cells were named Paneth cells (Paneth cell glands) after Joseph Paneth (1857-1890) who first described them.

Reference:
1. Color Atlas of Cytology, Histology, and Microscopic Anatomy 4th Edition. Wolfgang Kuehnel, M.D. Thieme Publications. 2003.