Kadoya M, Matsui O, Nakanuma Y, Yoshikawa J, Arai K, Takashima T, Amano M, Kimura M
Department of Radiology, Kanazawa University School of Medicine, Japan.
Radiology. 1990 May;175(2):475-7. doi: 10.1148/radiology.175.2.2183286.
Ciliated hepatic foregut cysts (CHFCs) are solitary unilocular cysts in the liver that are histologically similar to bronchogenic cysts. Three cases of CHFC are reported that demonstrated radiologic features similar to those of solid masses. All the lesions were smaller than 3 cm in diameter and were subcapsular. At ultrasonography, one lesion appeared anechoic but the other two were hypoechoic. Unenhanced computed tomography demonstrated the lesions to be hyperattenuating or isoattenuating relative to surrounding liver parenchyma, and no lesions enhanced with administration of contrast material. Magnetic resonance imaging was performed in one case and demonstrated the lesion to be markedly hyperintense with a spin-echo (SE) 2,500/80 (repetition time msec/echo time msec) sequence. All the lesions were resected and found to be filled with viscous mucinous fluid. The CHFCs are not neoplasms and must be differentiated from cystic neoplasms and hypovascular solid tumors. When a subcapsular lesion demonstrated the varied appearance described, a diagnosis of CHFC should be considered.
纤毛肝前肠囊肿（CHFCs）是肝脏中的孤立单房囊肿，组织学上类似于支气管源性囊肿。本文报告了3例CHFC，其影像学特征与实性肿块相似。所有病变直径均小于3 cm，且位于肝包膜下。超声检查时，1个病变表现为无回声，另外2个为低回声。平扫计算机断层扫描显示病变相对于周围肝实质呈高密度或等密度，增强扫描后无病变强化。对其中1例进行了磁共振成像检查，自旋回波（SE）2500/80（重复时间毫秒/回波时间毫秒）序列显示病变呈明显高信号。所有病变均被切除，发现内部充满粘性粘液性液体。CHFC不是肿瘤，必须与囊性肿瘤和乏血管实性肿瘤相鉴别。当肝包膜下病变表现出所述的多样表现时，应考虑CHFC的诊断。
