AbstractRationale:Low-grade myofibroblastic sarcoma (LGMS) is a rare mesenchyme-derived tumor, which usually occurs in head, neck (especially tongue and mouth), and limbs. In this report, we described a case of gastric LGMS by 18F-fluoro-2-deoxy-d-glucose (FDG) positron emission tomography/computed tomography (PET/CT), which has not been reported previously.Patient concerns:A 51-year-old female patient was admitted to our hospital with upper abdominal discomfort for 1 year and gradually increased eating difficulties over the last 3 months. From gastroscopy, an ulcer of 1.0 cm × 1.2 cm at the entrance of cardia and stiffness of peripheral mucosa were found, leading to suspicion of cardia cancer. 18F-FDG PET/CT was performed for further diagnosis and staging.Diagnoses:According to pathological findings in combination with immunohistochemical features, diagnosis of gastric LGMS was made.Interventions:To relieve symptoms of upper gastrointestinal obstruction in the patient, proximal gastrectomy was carried out 1 week after the 18F-FDG PET/CT scan.Outcomes:The patient died due to advanced tumor.Lessons:18F-FDG PET/CT scan showed local thickening of the gastric wall, invasion of adjacent soft tissue, diaphragmatic and peritoneal metastasis at early stage, absence of regional lymph node metastasis, and increased 18F-FDG metabolism in primary tumor and metastatic tumor.
Medicine – Wolters Kluwer Health
Published: Jan 1, 2018
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