Ultrastructure of mast cells in human inferior nasal concha

Autor: C. M. Trotter, G. H. Hall
Rok vydání: 1991
Předmět:
Zdroj: Clinical Anatomy. 4:200-211
ISSN: 1098-2353
0897-3806
DOI: 10.1002/ca.980040305
Popis: Tissue taken from 20 patients during inferior turbinectomy was examined to elucidate the ultrastructure of mast cells, previously studied histologically, when we had noted differences in their size, granule content and staining characteristics, in epithelium, superficial and deep tunica propria of nasal mucosa. This ultrastructural study revealed that intra-epithelial mast cells were common, but often had fewer and more irregularly shaped granules than those in other areas. Mast cells were numerous in superficial tunica propria; they were small and spindle-shaped, with relatively few roundish granules, and appeared motile. Those in deeper tunica propria were larger and round or ovoid, with many roundish granules. The deeply located cells were fewer and often totally surrounded by large areas of collagen fibers. Association of mast cells with other cells was frequently noted, particularly in superficial layers, often with attenuated processes of fibroblasts and also frequently with one or more plasma cells or another mast cell. Although mast cells and unmyelinated or myelinated nerve were frequently seen in close association, specialized nerve endings were never observed. The distribution of mast cells and their granule characteristics correlates well with our earlier published histological observations.
Databáze: OpenAIRE
Externí odkaz: