Synchronic gastric tumors: a case report

Objective: The aim of this report is to describe a case of a patient with synchronous gastric tumors and demonstrate the importance of identifying this coexistence before surgery, considering that synchronicity is generally detected only after the surgery. Methods: The medical records of patients from Servidor Público Estadual Hospital of São Paulo were analyzed. Results: We identified a case of a 69-year-old male patient who presented with symptoms of dyspepsia, weight loss, and asthenia. The patient underwent serum laboratory tests, abdominal computed tomography, and upper digestive endoscopy. Analysis of the results revealed that the symptomatology was related to the association of two different gastric lesions, gastric adenocarcinoma and a nearby gastrointestinal stromal tumor (GIST), although without collision. Conclusion: The patient was submitted to a total gastrectomy with a Y-en-Roux reconstruction. Importance of the problem: Gastric cancer is the major cause of mortality of neoplastic nature, considering its high frequency and presentation of few symptoms. Although gastric adenocarcinoma and GIST are extremely different in their histopathological aspects, they can occur synchronously in the stomach. Preoperative identification of the synchronicity of these tumors is significantly important to improve surgical planning. Comments: Currently, there is a lack of a specific examination for screening GISTs, which explains the difficulty in diagnosing this tumor before the surgical procedure. In the present case, the diagnosis of adenocarcinoma was made despite the fact that two distinct gastric lesions were detected in the radiological imaging examination, and the final diagnosis of GIST was made only through anatomopathological analysis.