患者患有转移性甲状腺乳头状癌，其 131I 摄取呈现基底细胞乳头状瘤的假阳性。

False-Positive Uptake of 131I From Basal Cell Papilloma in a Patient With Metastatic Papillary Thyroid Cancer.

机构信息

From the Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China.

Department of Radiology, Jackson Memorial Hospital, University of Miami Miller School of Medicine, Miami, FL.

出版信息

Clin Nucl Med. 2021 Apr 1;46(4):358-360. doi: 10.1097/RLU.0000000000003506.

DOI:10.1097/RLU.0000000000003506

PMID:33492860

Abstract

A 64-year-old woman with metastatic papillary thyroid cancer underwent a total thyroidectomy followed by 2 courses of 131I therapy. The posttherapeutic whole-body scan after the second dose of 131I therapy showed multifocal bone metastasis. In addition, there is focal abnormal intense radiotracer uptake at the right inguinal region. SPECT/CT revealed that this abnormal focal radioactivity was from a superficial skin lesion. Further physical examination revealed a raised, approximately 1-cm, irregular grayish-brown lesion on the right groin skin. Histopathological examination confirmed the diagnosis of basal cell papilloma (seborrheic keratosis).

摘要

一位 64 岁患有转移性甲状腺乳头状癌的女性患者接受了全甲状腺切除术，随后进行了 2 次 131I 治疗。第二次 131I 治疗后的全身扫描显示多处骨转移。此外，右腹股沟区还存在局灶性异常放射性摄取。SPECT/CT 显示，这种异常放射性活性来自于一个皮肤浅表病变。进一步的体格检查发现右侧腹股沟皮肤有一个约 1 厘米高起的、不规则的灰棕色病变。组织病理学检查证实了基底细胞乳头状瘤（脂溢性角化病）的诊断。