Farlow D C, Little J M, Gruenewald S M, Antico V F, O'Neill P
Department of Nuclear Medicine and Ultrasound, Westmead Hospital, Sydney, Australia.
J Nucl Med. 1993 Jul;34(7):1172-4.
A 36-yr-old woman with a past history of gastric neuro-endocrine carcinoma (carcinoid tumor) underwent 99mTc-red blood cell (RBC) scintigraphy for evaluation of a 2-cm echogenic liver mass demonstrated on ultrasound. Scan findings were typical of a cavernous hemangioma. On follow-up, however, there was progressive lesion enlargement; histopathology of the resected mass revealed neuro-endocrine carcinoma. This case report, one of the few examples of a false-positive 99mTc-RBC scan, highlights the need for cautious evaluation of focal liver masses, even when there are typical scintigraphic features of cavernous hemangioma.
一名36岁有胃神经内分泌癌（类癌肿瘤）病史的女性，因超声检查发现肝脏有一个2厘米的高回声肿块，接受了99m锝标记红细胞（RBC）闪烁扫描以进行评估。扫描结果典型提示为海绵状血管瘤。然而，在随访过程中，病变逐渐增大；切除肿块的组织病理学检查显示为神经内分泌癌。本病例报告是99m锝标记红细胞扫描假阳性的少数例子之一，强调了即使存在典型的海绵状血管瘤闪烁显像特征，对肝脏局灶性肿块进行谨慎评估的必要性。
