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01.12.2014 | Case report | Ausgabe 1/2014 Open Access

BMC Gastroenterology 1/2014

Peritoneal metastatic adenocarcinoma possibly due to a gastric duplication cyst: a case report and literature review

Zeitschrift:
BMC Gastroenterology > Ausgabe 1/2014
Autoren:
Kuiliang Liu, Xiangchun Lin, Jing Wu, Hong Liu, Mingming Meng, Hui Su, Weiping Tai, Hong Chang
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1471-230X-14-48) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interest.

Authors’ contributions

LXC participated in the management of this case, designed this report , collected the materials of this manuscript and revised the manuscript; LKL participated in management of this case , collected the materials of this manuscript and drafted the manuscript; WJ and MMM participated in the management of this case and processing of materials in this manuscript; LH, SH and TWP participated in the management of this patient; CH contributed in the pathological diagnosis of this patient and supplied the pathological materials. All authors read and approved the final manuscript.

Abstract

Background

Gastric duplication cysts are rare congenital abnormalities, and malignant transformation of these duplications is also thought to be rare.

Case presentation

During a routine health checkup, a 28-year-old man underwent abdominal sonography followed by computed tomography (CT) with contrast agent, which revealed a cystic lesion with no enhancement. Laparoscopic surgery showed a 10 × 10 cm cyst adhering to the gastric corpus. However, attempts to remove the lesion en bloc were unsuccessful, and the ruptured cyst had contaminated the peritoneal cavity. Gastric duplication was diagnosed from microscopic examination of the cyst. Seven months later, the patient suffered a progressive increase in ascites, and repeated cytological analysis showed small nests of adenocarcinoma cells, with primary lesion unknown. Diagnostic laparoscopy showed multiple white nodules scattered over the surface of the liver, greater omentum, and peritoneum. Biopsy of the omental nodules confirmed adenocarcinoma, while carcinomatosis was diagnosed in the peritoneum.

Conclusions

Clinical presentation and chronological developments indicated that the malignancy probably originated from the gastric duplication cyst. This case highlights the importance of accurate preoperative diagnosis and optimal surgical management for gastric duplication as well as considering the potential existence of malignant transformation during surgical evaluation of adult patients with gastric duplication cysts.
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