Lou, T Y Ultrastructural morphogenesis of colonic PAS-positive macrophages ("colonic histiocytosis"). [electronic resource] - Human pathology Sep 1971 - 421-39 p. digital Publication Type: Journal Article ISSN: 0046-8177 Standard No.: 10.1016/s0046-8177(71)80008-4 doi Subjects--Topical Terms: Aminosalicylic AcidsBasement MembraneBiopsyColonic Diseases--pathologyEpithelial CellsHistological TechniquesHumansIntestinal Mucosa--pathologyMacrophagesMicroscopyMicroscopy, ElectronMucinsPhagocytosisRectum--pathologyStaining and Labeling