Gastric schwannoma: CT findings and clinicopathologic correlation

详细信息    查看全文

• 作者：Jian-song Ji ; Chen-ying Lu ; Wei-bo Mao ; Zu-fei Wang ; Min Xu
• 关键词：Schwannoma ; Stomach ; Computed tomography ; Clinicopathology
• 刊名：Abdominal Imaging
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：40
• 期：5
• 页码：1164-1169
• 全文大小：1,408 KB
• 参考文献：1.Enzinger FM, Weiss SW (1988) Benign tumors of peripheral nerves. In: Enzinger FM, Weiss SW, (eds) Soft tissue tumors, 2nd ed. St Louis: Mosby, pp. 725-35
  2.Lin CS, Hsu HS, Tsai CH, Li WY, Huang MH (2004) Gastric schwannoma. J Chin Med Assoc 67:583-86PubMed
  3.Hong HS, Ha HK, Won HJ, et al. (2008) Gastric schwannomas: radiological features with endoscopic and pathological correlation. Clin Radiol 63:536-42View Article PubMed
  4.Melvin WS, Wilkinson MG (1993) Gastric schwannoma: clinical and pathologic conditions. Am Surg 59:293-96PubMed
  5.Levy AD, Quiles AM, Miettinen M, Sobin LH (2005) Gastrointestinal Schwannomas: CT features with clinicopathologic correlation. AJR Am J Roentgenol 184:797-02View Article PubMed
  6.Voltaggio L, Murray R, Lasota J, Miettinen M (2012) Gastric schwannoma: a clinicopathologic study of 51 cases and critical review of the literature. Human Pathol 43:650-59View Article
  7.Daimaru Y, Kido H, Hashimoto H, Enjoji M (1988) Benign schwannoma of the gastrointestinal tract: a clinicopathologic and immunohistochemical study. Human Pathol 19:257-64View Article
  8.Prevot S, Bienvenu L, Vaillant JC, de Saint-Maur PP (1999) Benign schwannoma of the digestive tract. A clinicopathologic and immunohistochemical study of five cases, including a case of esophageal tumor. Am J Surg Pathol 23:431-36View Article PubMed
  9.Zheng L, Wu X, Kreis ME, et al. (2014) Clinicopathological and immunohistochemical characterisation of gastric schwannomas in 29 cases. Gastroenterol Res Pract 2014:202960View Article PubMed Central PubMed
  10.Takemura M, Yoshida K, Takii M, Sakurai K, Kanazawa A (2012) Gastric malignant schwannoma presenting with upper gastrointestinal bleeding: a case report. J Med Case Rep 6:37View Article PubMed Central PubMed
  11.Choi JW, Choi D, Kim KM, et al. (2012) Small submucosal tumors of the stomach: differentiation of gastric schwannoma from gastrointestinal stromal tumor with CT. Korean J Radiol 13:425-33View Article PubMed Central PubMed
  12.Rha SE, Byun JY, Jung SE, et al. (2003) Neurogenic tumors in the abdomen: tumor types and imaging characteristics. Radiographics 23:29-3View Article PubMed
  13.Kumar AJ, Kuhajda FP, Martinez CR, et al. (1983) Computed tomography of extracranial nerve sheath tumors with pathological correlation. J Comput Assist Tomogr 7:857-65View Article PubMed
  14.Levy AD, Remotti HE, Thompson WM, Sobin LH, Miettinen M (2003) Gastrointestinal stromal tumors: radiologic features with pathologic correlation. RadioGraphics 23:283-04, 456, quiz 532. Review
  15.Gossios K, Katsimbri P, Tsianos E (2000) CT features of gastric lymphoma. Eur Radiol 10:425-30View Article PubMed
  16.Lee MJ, Lim JS, Kwon JE, et al. (2007) Gastric true leiomyoma: computed tomographic findings and pathological correlation. J Comput Assist Tomogr 31:204-08View Article PubMed
  
• 作者单位：Jian-song Ji (1)
  Chen-ying Lu (1)
  Wei-bo Mao (2)
  Zu-fei Wang (1)
  Min Xu (1)
  
  1. Department of Radiology, Lishui Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical College, 289 Kuocang Road, Lishui, Zhejiang, 32300, China
  2. Department of Pathology, Lishui Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical College, 289 Kuocang Road, Lishui, Zhejiang, 32300, China
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Imaging and Radiology
  Gastroenterology
  Hepatology
  
• 出版者：Springer New York
• ISSN：1432-0509

文摘

Purpose The purpose of this study was to evaluate the computed tomography (CT) imaging characteristics of gastric schwannoma. Methods Eight cases of gastric schwannomas confirmed by surgery and pathology were retrospectively analyzed by CT. We reviewed the CT findings of gastric schwannomas for the following characteristics: tumor location, size, contour, margin, growth pattern, enhancement pattern, the presence or absence of necrosis, and perigastric lymph nodes. Results The tumors were located in the lesser curvature of gastric body (n?=?5) and greater curvature of the gastric antrum (n?=?3) with a median size of 4.8?cm (range 1.7-1.4?cm). Gastric schwannomas appeared as submucosal tumors with CT features of ovoid (7/8 patients), well-defined (8/8) and exophytic (4/8) or mixed (3/8) growth patterns. On dynamic CT examination, the tumors displayed homogeneous enhancement in seven cases and heterogeneous enhancement in one case. Solid parts of eight tumors demonstrated mild enhancement during the arterial phase and strengthened progressive enhancement during the venous and delayed phases. Two cases had perigastric lymph nodes. Conclusions Gastric schwannomas typically manifested as ovoid, well-defined, exophytic, or mixed growth pattern masses on CT. Homogeneous progressive enhancement on dynamic CT is a characteristic finding of gastric schwannoma.