Swobodnik W, Wechsler J G, Ditschuneit H
Ultraschall Med. 1983 Mar;4(1):47-8. doi: 10.1055/s-2007-1013036.
A 47 year old male patient came to our attention for severe anaemia. Although Gujak test for occult blood in the stool was repeatedly positive, x-ray films and endoscopic methods did not yield a definite diagnosis. Ultrasound only was able to identify a mass in the small intestine. Intraoperatively the diagnosis was confirmed; the tumour was a highly malignant carcinoid on pathologic examination.
一名47岁男性患者因严重贫血前来就诊。尽管粪便潜血的古亚克试验多次呈阳性，但X光片和内镜检查方法均未得出明确诊断。仅超声检查发现小肠有一个肿块。术中确诊；经病理检查，该肿瘤为高恶性类癌。
