Xie Wei, Huang Zemao, Huang Ziyang, Chen Zhangxin, Zhang Benjie, Xie Li, Zhu Lingqi, Lian Kejian, Lin Dasheng
Department of Orthopaedics, The 909th Hospital, School of Medicine, Xiamen University, Zhangzhou, Fujian 363000, P.R. China.
Exp Ther Med. 2022 Nov 16;25(1):5. doi: 10.3892/etm.2022.11703. eCollection 2023 Jan.
Bronchogenic cyst is a benign lesion with congenital dysplasia. Although the occurrence of this type of cyst is rare in the retroperitoneum, the presence of fluid-fluid levels is an even rarer phenomenon in bronchogenic cysts. Therefore, it can be easily misdiagnosed due to the lack of a universal guideline of specific imaging manifestations. The present report describes the case of a patient with a bronchogenic cyst with fluid-fluid levels whilst also performing a brief literature review to summarize the findings of previous reports on this condition. A 48-year-old male individual presented with severe lower back pain without any obvious causes. A CT scan revealed a low-density cystic mass of ~3x4x6 cm in the left front of the T12-L2 area, which originated from the left crus of the diaphragm. MRI revealed a fluid-fluid level in the cyst. Anterior thoracolumbar surgery was performed to completely resect the mass. During the surgery, it was confirmed that the cyst originated from the left crus of the diaphragm and the lesion was diagnosed to be a bronchogenic cyst by pathological analysis. The patient's symptoms improved after the surgery and no recurrence of the cyst was observed during the 3-year follow-up period. The presence of a fluid-fluid level in a retroperitoneal bronchogenic cyst is rare, particularly in the abdominal aorta and paravertebral regions, rendering it easily misdiagnosed. It may be associated with protein, hemorrhage and calcium-containing mucus deposition in the cysts. In the present study, a rare case of fluid-fluid level in bronchogenic cyst was reported and a literature review was provided.
支气管源性囊肿是一种先天性发育异常的良性病变。虽然这种类型的囊肿在腹膜后很少见，但在支气管源性囊肿中出现液-液平面是一种更为罕见的现象。因此，由于缺乏关于特定影像学表现的通用指南，它很容易被误诊。本报告描述了一例患有液-液平面的支气管源性囊肿患者的病例，同时还进行了简要的文献综述，以总结以往关于这种情况的报告结果。一名48岁男性因无明显原因出现严重下背部疼痛。CT扫描显示在T12-L2区域左前方有一个约3×4×6 cm的低密度囊性肿块，起源于左侧膈肌脚。MRI显示囊肿内有液-液平面。进行了胸腰椎前路手术以完全切除肿块。手术中证实囊肿起源于左侧膈肌脚，病理分析诊断该病变为支气管源性囊肿。术后患者症状改善，在3年随访期间未观察到囊肿复发。腹膜后支气管源性囊肿中出现液-液平面很罕见，尤其是在腹主动脉和椎旁区域，这使其容易被误诊。它可能与囊肿内的蛋白质、出血和含钙黏液沉积有关。在本研究中，报告了一例罕见的支气管源性囊肿液-液平面病例并提供了文献综述。
