發(fā)布時間：2018-10-09 07:53

【摘要】：目的探討消化道顆粒細(xì)胞瘤的影像學(xué)表現(xiàn)特征,提高對該腫瘤的認(rèn)識,減少誤診率。方法回顧性分析10例經(jīng)病理證實的消化道顆粒細(xì)胞瘤的影像學(xué)(鋇餐檢查5例,CT平掃9例,CT增強(qiáng)掃描7例,M RI平掃及增強(qiáng)掃描5例)表現(xiàn)。結(jié)果 10例消化道顆粒細(xì)胞瘤均為單發(fā),其中位于食管4例、胃3例,十二指腸壺腹、回盲部及直腸各1例。5例鋇餐檢查均表現(xiàn)為光滑充盈缺損。9例CT平掃表現(xiàn)為邊緣清楚的略低密度影,其中1例瘤內(nèi)見點(diǎn)狀鈣化,1例瘤內(nèi)見局灶性壞死;7例增強(qiáng)掃描中6例呈輕度均勻強(qiáng)化,1例呈中度不均勻強(qiáng)化,三期掃描均為漸進(jìn)性強(qiáng)化。5例MRI平掃均呈長T1短T2信號,增強(qiáng)掃描呈輕中度漸進(jìn)性均勻強(qiáng)化。結(jié)論消化道顆粒細(xì)胞瘤的鋇餐表現(xiàn)為良性腫瘤特征,CT和MRI上多為均勻輕中度漸進(jìn)性強(qiáng)化、T2WI呈低信號具有一定特征。
[Abstract]:Objective to investigate the imaging features of granulosa cell tumor of digestive tract and to improve the understanding of the tumor and reduce the misdiagnosis rate. Methods the imaging findings of 10 cases of pathologically proved granulosa cell tumor of the digestive tract were retrospectively analyzed (5 cases were examined by barium meal and 9 cases by plain CT enhanced CT in 7 cases with M RI plain scan and 5 cases by enhanced CT scan). Results all 10 cases of Gastrointestinal granulosa cell tumor were single, including 4 cases located in esophagus, 3 cases in stomach, and 3 cases in duodenal ampulla. One case of ileocecal part and one case of rectum showed smooth filling defect in 1 case and 1 case in rectum. The plain scan of CT showed a slightly low-density image with clear margin, and one case of ileocecum and one case of rectum showed smooth filling defect. In 1 case, focal necrosis was found in 1 case. Among 7 cases, 6 cases showed mild homogeneous enhancement and 1 case showed moderate heterogeneous enhancement. All cases showed progressive enhancement in 5 cases and long T 1 and short T 2 signal intensity in all cases. The enhancement scan showed mild to moderate progressive homogeneous enhancement. Conclusion the barium meal features of granulosa cell tumor of the digestive tract are benign tumors. On CT and MRI, most of them are homogeneous, mild and moderate enhanced T2WI with low signal intensity.
【作者單位】： 濟(jì)寧醫(yī)學(xué)院附屬醫(yī)院影像中心;濟(jì)寧市第一人民醫(yī)院影像中心;山東大學(xué)齊魯醫(yī)院放射科;
【分類號】：R445.2;R730.44;R735

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