A Case of Calcitonin Producing Adenoma of the Thyroid
スポンサーリンク
概要
- 論文の詳細を見る
A thyroid tumor about 4 cm in diameter was removed from a 53-year-old female. The clinical features were those of common thyroid adenomas, such as soft, smooth-surfaced and round contour of the tumor, no calcification and no lymph node metastasis. However, microscopically, the tumor was composed of compact cell nests rather similar to paraganglioma without any follicle formation. Histochemical examination revealed its C-cell nature, such as argyrophilia and calcitonin activity, although no amyloid deposit was demonstrated. Extremely high levels of calcitonin were found in the stored serum taken pre-operatively, but serum carcinoembryonic antigen levels were within normal limits. The calcitonin level dropped to the normal range soon after the operation, indicating the absence of residual tumorous tissues. Thus, the tumor behaves as an adenoma with a C-cell nature. Interestingly enough, the benign counterpart of medullary carcinoma of the thyroid seems to be quite rare in humans, and no similar tumors have ever been reported. Variations of C-cell tumors will be discussed in relation to their production and secretion of carcinoembryonic antigen.
論文 | ランダム
- 7509 商店街における生活景に関する考察 : 和歌山市ぶらくり丁地域をケーススタディとして(市街地変容:商業集積地,都市計画)
- 6083 密集傾斜地集落の持続性と安全性に関する分析 : 和歌山市雑賀崎集落池ノ丁をモデルケースとして(自然災害に対する防災・減災意識,農村計画)
- 7058 地方都市中心部の商店街における生活景に関する研究 : 和歌山市ぶらくり丁地域をケーススタディとして(都市計画)
- 7035 歩行者行動から見た地方都市中心部の街路空間の特徴と利用実態 : 和歌山市をケーススタディとして(都市計画)
- 21. 交通・物流 21・2 鉄道 21.2.3 付帯機械設備(機械工学年鑑)