We present the case of a 72-year-old man of Indian origin who came to our hospital with complaints of a painless mass with abdominal fullness. There was no significant past medical, family, or psychosocial history. There was no history of upper gastrointestinal bleed, or past medical or surgical interventions. On physical examination, he had mild pallor with ill-defined painless swelling in his gastric region. There was no organomegaly or lymphadenopathy. An upper gastrointestinal endoscopy was done which was suggestive of a submucosal lesion in his stomach. Our gastroenterologist thought of GIST; leiomyoma and even gastric malignancy was also suspected because of the patient’s old age. A subsequent biopsy was taken which revealed only mucosal tissue. A computed tomography (CT) scan of the patient’s abdomen showed an ovoid homogenous 4×3×2 cm mass at the greater curvature of his stomach. There was no other lesion in his whole body. We finally suspected submucosal tumor with the possibility of GIST. Considering the large size of the tumor, location, difficulty of establishing a definite preoperative diagnosis in spite of incision biopsy, suspicion of malignant GIST/tumor, old age and to prevent possible complications such as bleeding or pyloric stenosis, surgical intervention was planned and a subtotal gastrectomy was done. The surgical specimen was received in the department of pathology. On gross examination, an intramural, nodular, solid mass measuring 4×3×2 cm was seen. A cut section revealed whorling trabeculation. Histological observations showed a cellular tumor present in the submucosa, which extended into his muscularis propria. The overlying mucosa was unremarkable. Sections from the tumor showed interlacing bundles of spindle cells which had elongated nuclei, ill-defined cytoplasmic borders and palisading nuclei. Mild nuclear atypia was noted. These cells were separated by collagenous strands. Mitotic activity 5/50 high-power fields were seen; however, no necrosis/atypical mitosis were identified. There was no lymph node involvement and the surgical margin was negative for tumor cells. A histological diagnosis of a benign mesenchymal tumor was made. Immunohistochemistry (IHC) staining was strongly positive for vimentin and S-100, whereas c-Kit, SMA and cytokeratin (CK) were negative. Hence, a final diagnosis of schwannoma was made. His postoperative period was uneventful and he was discharged in good condition. Follow-up visits up to 1.5 years were unremarkable.