Diffuse Lipomatosis of Thyroid Gland. Case Report and Review of Literature.
Abstract
In normal thyroid glands, adipose tissue is distributed only under the capsule and along vessels.It is not usually present within the thyroid gland. Only a few adipose tissue -containing thyroid lesions have been reported to date.
Lipomatosis of thyroid gland is very rare condition,characterized by infiltration of adipose tissue in the thyroid gland.The pathophysiology of adipose tissue infiltration in the thyroid gland remains unclear.
We report a case of a 69-year-old female who presented in the Emergency Room of our hospital, complaining dysphaghia,dyspnea ,swelling of the neck and weight loss.
Her thyroid panel tests were in the range,ultrasound showed the typical appearance of multinodular goiter.A computed tomography revealed a rightward tracheal deviation and compression narrowing the tracheal lumen more than 50%.
The patient underwent total thyroidectomy. The histopathological examination revealed that adipose tissue was diffusely distributed throughout the thyroid gland.There is no evidence of atypia or mitotic activity.
Capsular infiltration or amyloid deposition were not observed. Nuclear grooves or intranuclear cytoplasmic inclusions were not observed. Accordingly, diffuse lipomatosis of thyroid gland was diagnosed.
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