Oh Youngmin, Choi Yonghyeok, Son Seung Myoung, Lee Jisun, Kim Yook, Han Joung Ho, Park Seon Mee
Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Korea.
Department of Pathology, Chungbuk National University College of Medicine, Cheongju, Korea.
Korean J Gastroenterol. 2017 Apr 25;69(4):253-258. doi: 10.4166/kjg.2017.69.4.253.
Although lymphoepithelial cysts (LECs) of the pancreas are benign lesions, most of them have been treated with surgical resection due to diagnostic difficulty. We report a 66-year-old woman diagnosed with pancreatic LECs. Abdominal ultrasound revealed two masses in the pancreas, which were not visible on the abdominal computed tomography. In an abdominal magnetic resonance imaging, pancreas lesions showed solid tumors, which revealed a low signal intensity on T1-, moderate high signal intensity on T2 weighted images, and homogeneous delayed enhancement in the portal venous phase. Endosonography (EUS) revealed two hypoechoic round masses measuring 1.5 cm and 4.5 cm in the body and tail of the pancreas, respectively. EUS-guided fine needle aspiration (FNA) revealed squamous cells, amorphous keratinous debris, and lymphocytes. The patient was diagnosed with LECs of the pancreas. For the duration of the follow-up period of two years, imaging studies were unchanged. EUS-FNA is useful in making a definite diagnosis and avoiding unnecessary surgery. This is the first case of pancreatic LECs diagnosed with EUS-FNA in Korea.
尽管胰腺淋巴上皮囊肿（LECs）是良性病变，但由于诊断困难，大多数此类囊肿都接受了手术切除治疗。我们报告了一名66岁被诊断为胰腺LECs的女性患者。腹部超声显示胰腺有两个肿块，而腹部计算机断层扫描未显示。在腹部磁共振成像中，胰腺病变显示为实性肿瘤，在T1加权图像上呈低信号强度，在T2加权图像上呈中等高信号强度，在门静脉期呈均匀延迟强化。内镜超声检查（EUS）显示胰腺体部和尾部分别有两个低回声圆形肿块，大小分别为1.5厘米和4.5厘米。EUS引导下细针穿刺抽吸（FNA）显示有鳞状细胞、无定形角质碎片和淋巴细胞。该患者被诊断为胰腺LECs。在两年的随访期内，影像学检查结果无变化。EUS-FNA有助于明确诊断并避免不必要的手术。这是韩国首例通过EUS-FNA诊断的胰腺LECs病例。
