Pyramidal lobe of thyroid | Radiology Reference Article - Radiopaedia.org
2024年10月15日 · The pyramidal lobe of the thyroid, also known as Lalouette pyramid 5, is a normal anatomic variant representing a superior projection of thyroid parenchyma arising from the thyroid isthmus. A pyramidal lobe is present in ~20 (range 10-30%) of the population ref and is commonly seen on routine thyroid ultrasound 3.
The prevalence and anatomy of the pyramidal lobe of the thyroid gland …
2023年5月28日 · The pyramidal lobe (PL), also known as the third lobe of the thyroid gland or lobe of Lalouette is an embryological remnant of the caudal end of the thyroglossal tract. The following meta-analysis aims to provide a detailed analysis of the anatomical variations of the PL using the available data in the literature.
Pyramidal Lobe of the Thyroid Gland: Surgical Anatomy in …
The presence of the pyramidal lobe (PL) is a typical example of anatomical variations affecting the completeness of thyroidectomy. The thyroid surgeon must have full knowledge of the anatomy of the thyroid gland, including all of its embryological, congenital, or acquired variations.
Anatomy, Head and Neck, Thyroid - StatPearls - NCBI Bookshelf
2023年7月24日 · The “normal” thyroid gland has lateral lobes that are symmetrical with a well-marked centrally located isthmus. The thyroid gland typically contains a pyramidal extension on the posterior-most aspect of each lobe, referred to as the tubercle of Zuckerkandl.
Ultrasound for the detection of the pyramidal lobe of the thyroid gland
2022年2月14日 · The pyramidal lobe (PL) is an ancillary lobe of the thyroid gland that can be affected by the same pathologies as the rest of the gland. We aimed to assess the diagnostic performance of high-resolution sonography in the detection of the PL with verification by dissection and histological examination.
The prevalence and anatomy of the pyramidal lobe of the thyroid gland …
2023年5月28日 · The pyramidal lobe (PL), also known as the third lobe of the thyroid gland or lobe of Lalouette is an embryological remnant of the caudal end of the thyroglossal tract (Irawati et al., 2016).
Thyroid gland: Anatomy, functions and hormones - Kenhub
2023年6月14日 · In some individuals, there may be a third lobe of the thyroid gland known as the pyramidal lobe. It is also a conical structure that extends from the isthmus up to the hyoid bone. In some cases, it may also arise from the inferomedial aspect of either left or right lobes; but it is more commonly seen arising from the left lobe.
Histology, Thyroid Gland - StatPearls - NCBI Bookshelf
2022年12月5日 · Sometimes a third lobe called the pyramidal lobe projects from the isthmus. It has a fibrous/fibromuscular band, i.e., levator glandulae thyroideae running from the body of the hyoid to the isthmus. [1]
Pyramidal Lobe Prevalence, Preoperative Detection and Clinical ...
2020年10月19日 · The pyramidal lobe is an important feature of thyroid gland anatomy that is often neglected in preoperative imaging and thyroid surgery. The aim of this review is to assess the frequency of the pyramidal lobe as well as its clinical importance.
Pyramidal lobe of thyroid | Radiology Reference Article - Radiopaedia.org
2021年1月30日 · The pyramidal lobe of thyroid (also known as Lalouette pyramid5) is a normal anatomic variant representing a superior sliver of thyroid tissue arising from the thyroid isthmus. It is seen as a third thyroid lobe and is present in 10-30% of the population. It represents a persistent remnant of the thyroglossal duct.