Possible Variations of Thyroid Gland: A Detailed Cadaveric Study
Introduction: The knowledge regarding the identification of anatomical variations of thyroid gland is very important in formulating planned surgical approaches to the thyroid gland and in alerting the surgeons to prevent accidental injuries to the vital anatomical structures in this area. Aim:...
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| Format: | Article |
| Language: | English |
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JCDR Research and Publications Pvt. Ltd.
2018-04-01
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| Series: | International Journal of Anatomy Radiology and Surgery |
| Subjects: | |
| Online Access: | http://www.ijars.net/article_fulltext.asp?issn=0973-709x&year=2018&month=April&volume=7&issue=2&page=AO09-AO13&id=2375 |
| _version_ | 1818054972139372544 |
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| author | Movva Venkata Vinaya Kumar Reshma Mohammad Sreelatha S |
| author_facet | Movva Venkata Vinaya Kumar Reshma Mohammad Sreelatha S |
| author_sort | Movva Venkata Vinaya Kumar |
| collection | DOAJ |
| description | Introduction: The knowledge regarding the identification
of anatomical variations of thyroid gland is very important
in formulating planned surgical approaches to the thyroid
gland and in alerting the surgeons to prevent accidental
injuries to the vital anatomical structures in this area.
Aim: To find out the possible anatomical variations and
morphometric parameters of the entire thyroid gland.
Materials and Methods: A total of 60 thyroid glands were
studied in the cadavers by routine neck dissection method.
The morphological variations, arterial supply variations
and the morphometric parameters of length, breadth, and
thickness were observed.
Results: Out of 60 thyroid glands we observed one
thyrotrachealis biceps muscle. Isthmus was absent in 5
(8.3%) of cases, pyramidal lobe was present in 8 (13.3%)
of cases, levator glandulae thyroidae was in 3 (5%) of
cases , the left STA from LCC in 3 (5%) of cases, left STA
bifurcation level in 2 (3.3%) of cases, right STA from right
ECA lateral side in 1 (1.6%) of cases, arteria thyroidae ima
from arch of aorta was in 1 (1.6%) of cases, the minimum
and maximum length of the right lobe was 1.9 cm, 6.9 cm
and for the left lobe was 2.1 cm, 5.8 cm, the minimum and
maximum breadth of the right lobe was 0.94 cm, 3.72 cm
and for the left lobe was 1.2 cm, 3.5 cm, the minimum and
maximum thickness of the right lobe was 0.87cm,2.9cm
and for the left lobe was 0.7 cm, 2.5 cm, the average weight
of the thyroid gland was 14.4 gm.
Conclusion: Thyroid gland in a cadaver caught our
attention as it had multiple variations. The implications
of such variations are relevant for academic and clinical
purposes. |
| first_indexed | 2024-12-10T12:05:32Z |
| format | Article |
| id | doaj.art-3b25ae83596d4089a08cca471b7a5f9d |
| institution | Directory Open Access Journal |
| issn | 2277-8543 2455-6874 |
| language | English |
| last_indexed | 2024-12-10T12:05:32Z |
| publishDate | 2018-04-01 |
| publisher | JCDR Research and Publications Pvt. Ltd. |
| record_format | Article |
| series | International Journal of Anatomy Radiology and Surgery |
| spelling | doaj.art-3b25ae83596d4089a08cca471b7a5f9d2022-12-22T01:49:28ZengJCDR Research and Publications Pvt. Ltd.International Journal of Anatomy Radiology and Surgery2277-85432455-68742018-04-0172AO09AO1310.7860/IJARS/2018/32430:2374Possible Variations of Thyroid Gland: A Detailed Cadaveric Study Movva Venkata Vinaya Kumar0Reshma Mohammad1Sreelatha S2Assistant Professor, Department of Anatomy, Malla Reddy Medical College for Women, Hyderabad, Telangana, India.Tutor, Department of Anatomy, Mallareddy Medical College for Women, Hyderabad, Telangana, India.Professor, Department of Anatomy, Malla Reddy Medical College for Women, Hyderabad, Telangana, India.Introduction: The knowledge regarding the identification of anatomical variations of thyroid gland is very important in formulating planned surgical approaches to the thyroid gland and in alerting the surgeons to prevent accidental injuries to the vital anatomical structures in this area. Aim: To find out the possible anatomical variations and morphometric parameters of the entire thyroid gland. Materials and Methods: A total of 60 thyroid glands were studied in the cadavers by routine neck dissection method. The morphological variations, arterial supply variations and the morphometric parameters of length, breadth, and thickness were observed. Results: Out of 60 thyroid glands we observed one thyrotrachealis biceps muscle. Isthmus was absent in 5 (8.3%) of cases, pyramidal lobe was present in 8 (13.3%) of cases, levator glandulae thyroidae was in 3 (5%) of cases , the left STA from LCC in 3 (5%) of cases, left STA bifurcation level in 2 (3.3%) of cases, right STA from right ECA lateral side in 1 (1.6%) of cases, arteria thyroidae ima from arch of aorta was in 1 (1.6%) of cases, the minimum and maximum length of the right lobe was 1.9 cm, 6.9 cm and for the left lobe was 2.1 cm, 5.8 cm, the minimum and maximum breadth of the right lobe was 0.94 cm, 3.72 cm and for the left lobe was 1.2 cm, 3.5 cm, the minimum and maximum thickness of the right lobe was 0.87cm,2.9cm and for the left lobe was 0.7 cm, 2.5 cm, the average weight of the thyroid gland was 14.4 gm. Conclusion: Thyroid gland in a cadaver caught our attention as it had multiple variations. The implications of such variations are relevant for academic and clinical purposes.http://www.ijars.net/article_fulltext.asp?issn=0973-709x&year=2018&month=April&volume=7&issue=2&page=AO09-AO13&id=2375isthmusmorphologymorphometrysuperior thyroid artery |
| spellingShingle | Movva Venkata Vinaya Kumar Reshma Mohammad Sreelatha S Possible Variations of Thyroid Gland: A Detailed Cadaveric Study International Journal of Anatomy Radiology and Surgery isthmus morphology morphometry superior thyroid artery |
| title | Possible Variations of Thyroid Gland: A Detailed Cadaveric Study |
| title_full | Possible Variations of Thyroid Gland: A Detailed Cadaveric Study |
| title_fullStr | Possible Variations of Thyroid Gland: A Detailed Cadaveric Study |
| title_full_unstemmed | Possible Variations of Thyroid Gland: A Detailed Cadaveric Study |
| title_short | Possible Variations of Thyroid Gland: A Detailed Cadaveric Study |
| title_sort | possible variations of thyroid gland a detailed cadaveric study |
| topic | isthmus morphology morphometry superior thyroid artery |
| url | http://www.ijars.net/article_fulltext.asp?issn=0973-709x&year=2018&month=April&volume=7&issue=2&page=AO09-AO13&id=2375 |
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