superior parathyroid gland

superior parathyroid gland

[TA]
one of two parathyroid glands developing from the endoderm of the fourth pharyngeal pouch; usually located midway along the posterior border of the thyroid gland.
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During dissection, the superior parathyroid gland should be identified and left intact in situ [Figure 3] and [Figure 4].{Figure 3}{Figure 4}
A superior parathyroid gland was also identified and preserved.
The left superior parathyroid gland was also cystic and grossly enlarged, and it was removed.
The right superior parathyroid gland was enlarged, whereas the right inferior parathyroid was grossly within normal limits.
Ultrastructural examination of formalin-fixed deparaffinized tissue from the 1700-mg right superior parathyroid gland showed numerous, fine intracytoplasmic vacuoles.
An undigested DNA sample from the right superior parathyroid gland and from the left superior parathyroid gland specimens showed 2 identical dominant bands corresponding to 2 HUMARA alleles, whereas digested DNA samples from the same specimens showed only one dominant band with identical size (Figure 3).
The right and left superior parathyroid glands measured 2.8 and 1.5 cm and weighed 1700 and 500 mg, respectively.
A fused single photon-emission computed tomography (SPECT)/CT scan conducted at our institution showed increased radiotracer uptake by the left superior parathyroid gland (figure 1), consistent with a parathyroid adenoma.
The superior parathyroid gland and the ultimobranchial body develop from the fourth branchial pouch, also in the vicinity of the piriform sinus.
We usually start the mobilization of superior pole of thyroid gland from medial to lateral direction with individual ligation of branches from superior thyroid artery, by this maneuver we can save the blood supply of superior parathyroid glands. The liberal resection and autotransplantation of parathyroid glands have a greater risk of transient but significant hypocalcaemia11 When the blood supply of parathyroid glands appeared to be compromised it was selectively resected and placed in iced saline parathyroid gland was minced into pieces and auto transplanted in ipsilateral sternocleidomastoid muscle.
Superior parathyroid glands tend to be found dorsal to the mid-to-superior thyroid pole and in the retropharyngeal space (Figure 2).
The 2 superior parathyroid glands were explored during surgery.
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