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Giant mesenteric cyst of gastric origin: a case report with imaging findings
Umit Yaşar Ayaz1, Alper Dilli, Arman Api
1Department of Radiology, Ministry of Health, Mersin Women's and Children's Hospital, Mersin, Turkey.
Insights
A rare giant gastric mesenteric cyst was diagnosed in an eight-year-old boy using ultrasonography (US) and computed tomography (CT). Surgical excision was successful, confirming the cyst
Area of Science:
- Gastroenterology
- Pediatric Surgery
- Radiology
Background:
- Mesenteric cysts are rare intra-abdominal masses.
- Gastric origin mesenteric cysts are exceptionally uncommon.
- Diagnosis often relies on advanced imaging techniques.
Observation:
- A giant (18x15x6 cm), thin-walled, unilocular cyst was identified in an eight-year-old boy.
- Ultrasonography (US) revealed the cyst's large size and extent.
- Contrast-enhanced computed tomography (CT) demonstrated a hypodense, non-enhancing structure.
Findings:
- The cyst originated from the gastric antrum's mesentery-serosa.
- It was filled with serous fluid.
- Surgical excision and pathological examination confirmed a gastric mesenteric cyst.
Implications:
- US and CT are crucial for diagnosing giant gastric mesenteric cysts.
- Accurate imaging aids in differential diagnosis and surgical planning.
- Complete surgical excision leads to favorable patient outcomes.
Abstract:
We present a very rare case of a giant gastric mesenteric cyst with ultrasonography (US) and computed tomography (CT) findings. An eight-year-old boy was referred for treatment of an intraabdominal cyst, known to exist for six years. On abdominal US, a giant, thin-walled, unilocular intraabdominal cyst was demonstrated, extending from the epigastric region to the pelvis and measuring 18 x 15 x 6 cm. In contrast-enhanced abdominal CT, the cyst was demonstrated as a giant, unilocular, hypodense, non-enhancing structure, located dominantly on the right side of the abdomen. During open surgery, the cyst was found to originate from the mesentery-serosa of the gastric antrum and was filled with serous fluid. The cyst was excised totally. Both surgery and pathology confirmed the diagnosis of mesenteric cyst, originating from the stomach. The patient was discharged in good health. US and CT were effective in defining the features of the giant gastric mesenteric cyst and in narrowing the differential diagnosis in favor of mesenteric cyst.