parafollicular

par·a·fol·lic·u·lar

(par'ă-fo-lik'yū-lăr),
Associated spatially with a follicle.

parafollicular

close to a follicle.

parafollicular cell
a c cell of the thyroid gland.
References in periodicals archive ?
The immunohistochemical demonstration of parafollicular cells and evaluation of calcium-phosphate balance in patients with thyroid hemiagenesis.
1) C cells are located between the follicular epithelial cells and their basement membranes and, hence, are also referred to as parafollicular cells, a term first coined by Jose Fernandez Nonidez.
Calcitonin, secreted by the parafollicular cells of the thyroid gland, also acts on calcium concentrations to balance, and oppose, the effects of PTH.
Five pairs of endoderm-lined pharyngeal pouches give rise to the middle ear cavity, auditory tube, tympanic membrane (from the first pair), palatine tonsils (from the second pair), thymus and lower parathyroid glands (from the third pair), upper parathyroid glands (from the fourth pair), and parafollicular cells of the thyroid gland The subsequent foregut extends to the bottom of the liver bud.
The second group consists of carcinoma arising from parafollicular cells of ultimobranchial body of neural crest, which is the medullary carcinoma.
This gland consists of thousands of thyroid follicles, vesicular endocrine glands coated by simple cuboidal epithelium and C cells (or parafollicular cells) [4,5,7].
The IHC characterization of the thyroid cells was performed with antibodies against thyroglobulin (specific for thyroid follicular cells) and calcitonin (specific for thyroid C-cells [or parafollicular cells]) (RAMOS-VARA et al.
18,24) Calcitonin, a hormone produced by parafollicular C cells in the thyroid gland, normally helps in regulation of blood calcium levels.
The second hormone is calcitonin (CT) which originates from the C cells or parafollicular cells of the thyroid and thymus glands.