الفهرس 
Embryology of thyroid glandOnly 14 pages are availabe for public view
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Abstract
Thyroid nodules, either solitary or within a multinodular gland, occur very frequently. After introduction of ultrasonography, the incidence of thyroid nodules was found to be much higher than that was clinically detected, which is supported by the fact that postmortem finding of thyroid nodules was very common.
Thyroid nodules can be benign as Hashimoto’s thyroiditis …etc. Thyroid malignant tumours yet representing less than 10% of the thyroid nodules but they are the most serious and any thyroid nodule should be thoroughly investigated to exclude malignancy.
The goal of thyroid nodule evaluation is to accurately assess the risk such a nodule is cancerous via methods that are accurate and precise, yet also safe, cost-effective, and without morbidity
In our study, The data of the patients was obtained from files including clinical history and examination, thyroid functions, as well as FNAC and ultrasonography preoperative to measure 3 dimension of the thyroid nodule over than 1cm (length. width. anteroposterior) and They had hemithyroidectomy or total thyroidectomy according to the clinical picture. The specimen were sent for routine histopathology after the operation for histopathology examination to detect the percentage of thyroid cancer related to thyroid nodule size..
In our study we aim to study the relation between thyroid nodule size and prevelance of thyroid cancer. This study was carried out on 330 patients aged from 13 to 65 years (243 female..87 male) complaining of thyroid nodule that admitted in Department of Surgery Faculty of Medicine, Menofiya University and Tala Central Hospital .