FORAMEN IN THE SHIELD: FORAMEN THYROIDEUM
Journal Title: Journal of Evolution of Medical and Dental Sciences - Year 2016, Vol 5, Issue 64
Abstract
BACKGROUND AND OBJECTIVES Opening (foramen) existing in one or both plates of the thyroid cartilage, which may or may not contain a neurovascular component is known as foramen thyroideum. The purpose of present study was to look for presence of foramina in thyroid cartilage, to note the position of the foramen, the symmetry and the presence of neurovascular bundle. METHODS After due permission from the ethics committee of the institution, sixty specimens (51 males and 9 females) of apparently healthy larynx were obtained from embalmed cadavers. The larynx was procured after meticulous dissection. The specimens were looked for presence of foramina and if present, its position, symmetry, and presence or absence of neurovascular bundle was noted. RESULTS Out of 60 larynges, foramen thyroideum was found in seven (11.6%) larynges. Of these, 40% was present on the oblique line and 30% each to anterior and posterior of oblique line respectively. INTERPRETATION AND CONCLUSION These variant is of high interest for surgeons intervening in the larynx due to potential complications such as bleeding and neural impairment. The oblique line of the thyroid lamina acts as the best topographical landmark to identify any aberrant anatomy related to a thyroid foramen.
Authors and Affiliations
Parmanand , Yuvaraj Bhosale
Keywords
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- EP ID EP164878
- DOI 10.14260/jemds/2016/1030
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