Morphometric Study Of Pyramidal Lobe And Levator Glandulae Thyroidae And Its Surgical Significance
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Date
2018-07
Journal Title
Journal ISSN
Volume Title
Publisher
IMED Research Publications
Abstract
Introduction: The thyroid gland is an important endocrine gland in human body , thyroid disorder being thecommon health problem affecting almost 5% of the population. Incomplete removal of thyroid gland may causerecurrence of disease and it could be dangerous when complete removal of gland tissue is indicated in Graveāsdisease or malignant carcinoma . Remains of pyramidal lobe ,the cause. Hence its necessary to know the trueincidence of anatomic variants of thyroid viz , pyramidal lobe or levator glandulae thyroidae to perform safeand effective surgery.Aims: To study the morphological variations of lobes of thyroid gland . viz. pyramidal lobe, levator glandulaethyroidae and its incidence in western maharashtra population.Materials and methods: The study was conducted on total of 60 thyroid glands(male-34, female-26) collectedduring routine dissection from adult cadavers of both sexes aged more than 18 yrs in the department of anatomy,B. J. government medical college , Pune. A cross sectional descriptive type of study was performed.Results: Pyramidal lobe was found in 25% cases , more common in females (30.76%), than males (20.58%) .Levator glandulae thyroidae was seen in (38.33%) cases, more common in females (38.46%) than males (38.23%). Pyramidal lobe was mostly originated from center of isthmus (46.6%) and least from right end of isthmus(6.66%) . In pyramidal lobe, length and breadth were more in males whereas thickness was more in females.Maximum 73.9% LGT seen were muscular in texture followed by fibromuscular , fibrous respectively. Maximumnumber of LGT seen were extending from pyramidal lobe to hyoid bone (43.47%), followed by either lobe ofthyroid gland to hyoid bone . All dimentions of LGT were more in males. PL associated with LGT was seen in23.33% cases , males 20.59% and females 26.92% , thus showing female preponderance.Conclusion: The study highlights the incidence of pyramidal lobe and levator glandulae thyroidae which isimportant to keep in mind for successful thyroid surgeries to prevent recurrence of diseases .
Description
Keywords
Pyramidal lobe (PL), Levator glandulae thyroidae (LGT), Thyroid gland morphometry
Citation
Rajashree Sheelawant Raut, Jadhav Shailendra Sachhidanand, Kulkarni Pramod Raghunath. Morphometric Study Of Pyramidal Lobe And Levator Glandulae Thyroidae And Its Surgical Significance. International Journal of Anatomy and Research. 2018 Jul; 6(3): 5538-5543