Histological study of the thyroid gland following 904-nm laser radiation

1993 ◽  
Author(s):  
I. Perez de Vargas ◽  
C. Parrado ◽  
V. Gonzalez ◽  
Lourdes Vidal ◽  
F. Rius
Keyword(s):  
Laser Radiation ◽  
Thyroid Gland ◽  
Histological Study

Histological Study of Human Thyroid Gland Relative Proportion of Parenchyma and Stroma in Thyroid Glands of Bangladeshi People

2013 ◽  
Vol 1 (2) ◽  
pp. 17-20
Author(s):  
Md Enayet Ullah ◽  
Hasna Hena ◽  
Rubina Qasim
Keyword(s):  
Thyroid Gland ◽  
Histological Study ◽  
Relative Proportion ◽  
Age Groups ◽  
Human Thyroid ◽  
Structural Units ◽  
Thyroid Glands ◽  
Group A ◽  
Group B ◽  
Connective Tissue Sheath

Deep cervical fascia forms a connective tissue sheath around the thyroid gland. Delicate trabeculae and septa penetrate the gland indistinctly dividing the gland into lobes and lobules which in turn composed of follicles.1,2,3 These follicles are structural units of thyroid gland which varies greatly in size and shape.4 The number of follicles varies in different age groups. The study was carried out to see the percentage of area occupied by follicles in the stained section of thyroid glands in different age groups. The collected samples were grouped as A (3.5 – 20yrs), B (21- 40yrs) & C (41 – 78yrs). Percentage of area occupied by follicles was (58.55±10.72) in group A, (63.79±12.35) in group B + (63.39±8.29) in group C.DOI: http://dx.doi.org/10.3329/updcj.v1i2.13981 Update Dent. Coll. j. 2011: 1(2): 17-20

scholarly journals HISTOLOGICAL STUDY OF THYROID STATE IN ADMINISTRATION OF AQUEOUS EXTRACT FROM LEMNA MINOR FROND IN EXPERIMENTAL HYPOTHYROIDISM

2016 ◽  
Author(s):  
A. H. H. Kononenko ◽  
V. M. Kravchenko
Keyword(s):  
Thyroid Gland ◽  
Aqueous Extract ◽  
Functional Activity ◽  
Lemna Minor ◽  
Histological Study ◽  
Morphological Structure ◽  
Practical Significance ◽  
Outer Diameter ◽  
Experimental Conditions ◽  
Thyroid State

The influence of aqueous extract from Lemna minor frond on morphological status of the thyroid gland in the experimental conditions of hypothyroidism in rats induced by administration of merkazolilum solution instead of drinking water for 30 days was studied. Thyreostatic merkazolilum resulted in changes of morphological structure of the thyroid gland, accompanied by manifestations of hyperplastic tissue proliferation and corresponds with hypofunctional state.The introduction of aqueous extract from Lemna minor frond resulted in positive influence on the restructuring of the thyroid gland in rats with hypothyroidism, increasing its functional activity. There was a decrease of proliferative processes of the epithelium and extrafollicular thyrocytes in follicles. The outer diameter of the follicles are not different from intact control, height follicular thyrocytes decreased compared with pathology by 41.08%. Iodomarin and L-thyroxine increased functional activity of the thyroid gland, but to a lesser degree than the aqueous extract from Lemna minor frond. L-thyroxine is not increased pharmacological effect of the studied extract. The results have practical significance for drugs development with thyroid-stimulating action.

The Thyroid Gland in Mental Deficiency: A Histological Study

1933 ◽  
Vol 79 (326) ◽  
pp. 464-500
Author(s):  
J. L. Newman
Keyword(s):  
Thyroid Gland ◽  
Thyroid Function ◽  
Histological Study ◽  
Mental Deficiency ◽  
Profound Influence ◽  
The Mind

The thyroid gland has a profound influence on the mind, both in its emotional and its intellectual aspects. The emotional features of hyperthyroidism are too well recognized to need stressing. So, too, is the association between gross diminution of thyroid function and the mental incapacity of cretinism. It was suspected, therefore, that even in those types of mental deficiency in which diminution of thyroid function was not recognizable clinically, it might be possible to detect some evidence of abnormality in the thyroid gland by histological study. Further justification for presupposing the possibility of thyroid derangement may be found in the fact that in many conditions an association between the thyroid and thymus has been established, and that in mental deficiency the thymus undergoes premature atrophy.

Stereological study of the capillaries in the thyroid gland after IR laser radiation

1994 ◽  
Author(s):  
I. Perez de Vargas ◽  
Lourdes Vidal ◽  
C. Parrado ◽  
F. Carrillo ◽  
A. Pelaez ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Thyroid Gland ◽  
Ir Laser

Quantitative study of the morphological changes in the thyroid gland following IR laser radiation

1990 ◽  
Vol 5 (1) ◽  
pp. 77-80 ◽  
Author(s):  
C. Parrado ◽  
A. Peláez ◽  
L Vidal ◽  
I. Pérez De Vargas
Keyword(s):  
Laser Radiation ◽  
Thyroid Gland ◽  
Quantitative Study ◽  
Morphological Changes ◽  
Ir Laser

scholarly journals Langerhans Cell Histiocytosis of the Thyroid Leading to the Diagnosis of a Disseminated Form

2020 ◽  
Vol 2020 ◽  
pp. 1-3
Author(s):  
Ibtissem Ben Nacef ◽  
Sabrine Mekni ◽  
Chedi Mhedhebi ◽  
Ines Riahi ◽  
Imen Rojbi ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Thyroid Nodule ◽  
Langerhans Cells ◽  
Langerhans Cell Histiocytosis ◽  
Histological Study ◽  
S100 Protein ◽  
Langerhans Cell ◽  
Multisystemic Disease ◽  
Right Lobe ◽  
The Right

Langerhans cell histiocytosis (LCH) is a rare sporadic proliferative disorder of Langerhans cells. LCH rarely involves the thyroid gland. We report herein a case of a disseminated chronic form of LCH with a diagnosis established by histological examination of the thyroid gland. It is about a 37-year-old female who underwent total thyroidectomy for a thyroid nodule of the right lobe. Histological study showed a granulomatous thyroiditis, and the immunohistochemistry study revealed a strong positivity of histiocytes for the CD1 antigen and for the S100 protein. The incidence of LCH involving the thyroid gland, either as an isolated lesion or as a part of multisystemic disease, is extremely rare.

scholarly journals Histological Studies on Foetal Thyroid Gland of Developing Human Foetuses

2021 ◽  
Vol 17 (1) ◽  
pp. 75-80
Author(s):  
Rajeev Mukhia ◽  
Dil Islam Mansur ◽  
Mahendra Raj Pandey
Keyword(s):  
Thyroid Gland ◽  
Gestational Age ◽  
Structural Changes ◽  
Histological Study ◽  
Maturation Stage ◽  
Endocrine Gland ◽  
Long Time ◽  
Gestational Week ◽  
Preterm Babies ◽  
Colloid Formation

Introduction: Thyroid gland is the first endocrine gland to develop. It is one of the organs of interest for researchers since a long time. Though, detailed study about adult thyroid is there in the literature but histological study of thyroid gland at different stages in the foetal period is far and few. The present study aims to assess the histogenesis of thyroid gland and also to correlate the functional activity with structural changes in thyroid gland. Methods: The study was carried out on 30 foetal thyroid gland of known gestational age ranging from 10 to 38 weeks foetuses. The midline dissection of neck was done to expose the thyroid gland. After tissue processing, paraffin blocks were prepared. All sections were stained with Haematoxylin-Eosin stain. Results: In the foetuses, below 12th gestational week no colloid was detected in thyroid gland.  First appearance of colloid was observed at 14th gestational week. Parafollicular cells were found after 17th gestational week. Capsule thickness and gland vascularity increased with advancement of gestational age. The size of the peripheral follicles is larger than the central follicles. Conclusions: The study concluded the developmental stage of foetal thyroid as Precolloidal stage, Colloid formation stage, Follicular stage and Maturation stage in different gestational weeks. The knowledge on the growth and differentiation of foetal thyroid will be helpful to the clinicians to judge the thyroid structure in preterm babies.

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