甲状腺肿：胶样囊肿(大体) 弥漫性结节状 多结节性（显微镜）
This thyroid gland is about normal in size, but there is a larger colloid cyst at the left lower pole and a smaller colloid cyst at the right lower pole. Such cysts could appear as "cold" nodules on a thyroid scan. They are incidental benign lesions but can appear as a mass to be distinguished from possible carcinoma.