Ladenson P W, Vineyard G C, Pinkus G S, Ridgway E C
Arch Intern Med. 1983 May;143(5):1015-7.
A young woman with a normally located and only subtly nodular thyroid gland in the neck was found to have a clinically distinct and radioisotopically "cold" anterior mediastinal mass, which proved to be a benign colloid adenoma. While this constellation of findings usually suggests the presence of a nonthyroidal neoplasm, eg, lymphoma, thymoma, or teratoma, our case illustrates that sequestered benign nodular goiter should also be considered in the differential diagnosis. Clinical clues, such as a nodular thyroid gland, movement of the mass with deglutition, and a family history of nodular goiter, should suggest this possibility. A characteristic computed tomographic appearance may also prove useful in recognition of this rare disorder.
一名年轻女性，颈部甲状腺位置正常且仅有轻微结节，却发现前纵隔有一个临床上明显且放射性同位素检查呈“冷”性的肿块，结果证实是良性胶体腺瘤。虽然这一系列表现通常提示存在非甲状腺肿瘤，如淋巴瘤、胸腺瘤或畸胎瘤，但我们的病例表明，在鉴别诊断中也应考虑隐匿性良性结节性甲状腺肿。临床线索，如甲状腺结节、肿块随吞咽动作移动以及结节性甲状腺肿家族史，应提示这种可能性。特征性的计算机断层扫描表现也可能有助于识别这种罕见疾病。
