title: Heterotopic thyroid follicles in the accessory mesonephric lobes of Heteropneutes fossilis (Bloch).
abstract: The presence of heterotopic thyroid follicles is reported in the accessory mesonephric lobes of Heteropneustes fossilis. They are found rarely and singly, scattered in the substance of these lobes, in the early stages of development; but in the adult organ they occur in groups. There is no regular distribution and proper arrangement of these follicles. They are mainly located in close proximity to blood vessels and are considered to have migrated to their heterotopic positions along them. They show some signs of functional activity in the adult animal.
mesh_terms: D000818:Animals; D005399:Fishes / Q000033:anatomy & histology*; D007668:Kidney / Q000033:anatomy & histology / Q000166:cytology; D008650:Mesonephros / Q000033:anatomy & histology* / Q000166:cytology; D013961:Thyroid Gland / Q000033:anatomy & histology* / Q000166:cytology