Copyright
©The Author(s) 2020.
World J Gastrointest Surg. Oct 27, 2020; 12(10): 435-441
Published online Oct 27, 2020. doi: 10.4240/wjgs.v12.i10.435
Published online Oct 27, 2020. doi: 10.4240/wjgs.v12.i10.435
Location in the stomach | CT special features | Special features | |
Benign lesions | |||
Lipoma[19] | Antrum | Attenuation values -70 HU to -120 HU | Solitary, fibrous capsulated, soft (change in size and shape with peristalsis), no vessels |
Leiomyoma[24] | Cardia | Low attenuation, endoluminal growth pattern | Negative for c-kit, positive for desmin and smooth muscle actin |
Schwannoma[21] | Body | Minimal enhancement on the arterial phase | Absence of calcification, hemorrhage, necrosis; not encapsulated; positive for S-100 |
Glomus tumor[20] | Antrum | Strong enhancement on early-phase | Highly vascular; positive for calponin and smooth muscle actin |
Inflammatory fibroid polyp[22] | Antrum | Enhancement on arterial phase | Positive for CD34 and vimentin |
Hemangioma[25] | - | Strong enhancement on early-phase | Phleboliths are pathognomonic |
Plexiform fibromyxoma[23] | Antrum | Myxoid tissue interspersed with vessels | Unique to the stomach, size from 2 cm to 15 cm |
Ectopic pancreas[26] | Greater curvature | Similar to normal pancreas | - |
Splenosis[5] | - | Enhancement on arterial phase | Splenectomized patients |
Malignant lesions | |||
GIST[18] | Body | Smoothly circumscribed, bullseye sign | Positive for c-kit or dog-1; 50% greater than 2 cm |
Non-GIST sarcoma (liposarcoma, leiomyosarcoma, unclassified sarcoma)[27] | - | Usually large, heterogeneous enhancement | Positive for desmin and smooth muscle actin, negative for c-kit |
Lymphoma[33] | - | Wall thickening | Distant (more than close) and large adenopathy |
Carcinoid[29] | - | Multiple small lesions | Reactive to synaptophysin and chromogranin A, hypergastrinemia related symptoms |
Inflammatory myofibroblastic tumor[28] | - | Heterogeneously enhancing tumor (malignant appearance) | Borderline tumor, more frequent in young adults and children; reactivity for ALK |
Metastasis[30-32] | - | - | “Homomorphic” endoscopic features; dyschromic lesions |
- Citation: Isopi C, Vitali G, Pieri F, Solaini L, Ercolani G. Gastric splenosis mimicking a gastrointestinal stromal tumor: A case report. World J Gastrointest Surg 2020; 12(10): 435-441
- URL: https://www.wjgnet.com/1948-9366/full/v12/i10/435.htm
- DOI: https://dx.doi.org/10.4240/wjgs.v12.i10.435