MSCT diagnosis of gastric schwannoma：analysis of five cases and literature review

Abstract:

Objective：To investigate the computed tomography（CT） features of gastric schwannoma（GS） and its correlation with pathological manifestations. Methods：The complete clinical and CT data of 5 patients with pathological proved GS were summarized，and the clinical and CT features of 151 foreign patients with GS reported from 2010 to 2020 were reviewed and analyzed. Results：All the tumors were single，which located in gastric body，angle and antrum，respectively with 3 cases，1 case and 1 case. Lesions of five cases presented as expansive growth，among which 1 case grew outside the cavity fields，and 4 cases presented as bilateral growth. The maximum diameter was 21 mm to 60 mm. CT plain scan showed homogeneously slightly low density，and no ulceration was found on the surface. The dynamic enhancement scan showed mild to moderate reinforcement at the arterial phase；3 cases showed moderate reinforcement，2 cases showed obvious reinforcement at the venous phase；5 cases were further strengthened at the delayed phase. One case of them had enlarged lymph nodes around the tumor，which were confirmed by pathology as the reactive inflammatory proliferative lymph nodes. Conclusion：Although the CT manifestations of GS have certain characteristics，the diagnosis still depends on pathological examination.