Ultrastructure of the thyroid in dwarf mice
- 1 August 1976
- journal article
- research article
- Published by Wiley in Journal of Anatomy
- Vol. 146 (4), 339-357
- https://doi.org/10.1002/aja.1001460402
Abstract
The thyroid gland of Snell's dwarf mice consists of small follicles with flattened epithelium, partly differentiated cords and undifferentiated masses. Many adipocytes are found. The ultimobranchial cysts are well developed. Parafollicular cells are normal. In the partly organized cords, microfollicular cells and some small follicles limited by two or three cells are seen. The presence of these structures led us to think that they represent the first stages of normal folliculogenesis, described as the fusion of two adjacent unicellular microfollicles. Their further growth is the result of the coalescing of small adjacent follicles or of cellular multiplication. The presence of undifferentiated masses and partly differentiated cords, in dwarf mice, seems due to a developmental arrest rather than to aberrant development. This disorder of organogenesis is ascribed mainly to a lack of pituitary growth hormone.This publication has 35 references indexed in Scilit:
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