Gastric duplication cyst mimicking large cystic lymphangioma in an adult: A rare case report and review of the literature

Table 1 Teaching points for differential diagnosis

Disease	Age	Teaching points
Gastric duplication cysts (GDCs)	More common in children, rarely seen in adults.	Often present as a cystic focus along the greater curvature and adjacent to stomach with a thin and slightly enhanced wall.
Any cystic lesions from the adjacent organs (liver, biliary ducts, pancreas, and spleen)	Occur at any age.	Ultrasound, CT, and MRI can show the origination of the lesion. History, clinical presentation and laboratory examination could help to lead to the right diagnosis[7].
Gastrointestinal stromal tumors (GISTs)	Present usually in early adulthood[14].	Medical images show masses with solid enhancement arising from the gastric wall which may show cystic or mixed cystic changes[8,14].
Cystic lymphangioma	Occur mostly in children[26].	Mostly seen in the neck and axillae but can be found anywhere in the body[26]. CT and MRI show cystic lesions with the thin wall crawling along the tissue gaps[26,27].

CT: Computed tomography; MRI: Magnetic resonance imaging.