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Pathological characteristics of gastric leiomyoblastoma

Publication ,  Journal Article
Huang, XF; Wang, CM; Pan, BR; Dai, XW; Fang, L; Yang, JJ; Yu, H; Ren, J
Published in: World Journal of Gastroenterology
2004

AIM: To determine the pathological characteristics of gastric leiomyoblastoma. METHODS: All tissues were obtained during surgery or gastroscopy. Tissue specimens for examination by light microscope were 1 cmx1 cmx1 cm in size, fixed in 40 g/L neutral buffered formaldehyde, embedded in paraffin, and stained with hematoxylin and eosin. The fresh tissues obtained for electron microscopy were 1 mmx1 mmx1 mm in size, and fixed in phosphate buffered 30 g/L glutaraldehyde, postfixed in 10 g/L osmium tetroxide and dehydrated in graded alcohol, embebbed in Epon 812. Ultrathin sections of 50 nm were stained with uranyl acetate and lead citrate and examined under a JEM-2000 EX transmission electron microscope. RESULTS: The most important histopathological feature of leiomyoblastoma was the predominance of large, rounded or polygonal cells with characteristic perinuclear clear zone in cytoplasms. The tumor cells arranged in patch, cell junction or junctional complex could be found occasionally between cells under electron microscope. Most of the neoplastic cytoplasms were filled with myofilaments, dense bodies, and dense patches. Rough endoplasmic reticulum dilatated as lakes, and large quantities of protein secretions of intermediate electron density were found in the dilated cisternae. Intracisternal segregation could also be found. The nuclei were round or oval, and anomalous nuclei were found in part of cells. CONCLUSION: The diagnosis of gastric leiomyoblastoma can be confirmed by electron microscopy. The clear appearance of tumor cells is due to the dilation of rough endoplasmic reticulum, not fat droplets, glycogens or mucus in cytoplasm.

Duke Scholars

Published In

World Journal of Gastroenterology

ISSN

1007-9327

Publication Date

2004

Volume

10

Start / End Page

3182 / 3184

Related Subject Headings

  • Gastroenterology & Hepatology
  • 1103 Clinical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Huang, X. F., Wang, C. M., Pan, B. R., Dai, X. W., Fang, L., Yang, J. J., … Ren, J. (2004). Pathological characteristics of gastric leiomyoblastoma. World Journal of Gastroenterology, 10, 3182–3184.
Huang, X. F., C. M. Wang, B. R. Pan, X. W. Dai, L. Fang, J. J. Yang, H. Yu, and J. Ren. “Pathological characteristics of gastric leiomyoblastoma.” World Journal of Gastroenterology 10 (2004): 3182–84.
Huang XF, Wang CM, Pan BR, Dai XW, Fang L, Yang JJ, et al. Pathological characteristics of gastric leiomyoblastoma. World Journal of Gastroenterology. 2004;10:3182–4.
Huang, X. F., et al. “Pathological characteristics of gastric leiomyoblastoma.” World Journal of Gastroenterology, vol. 10, 2004, pp. 3182–84.
Huang XF, Wang CM, Pan BR, Dai XW, Fang L, Yang JJ, Yu H, Ren J. Pathological characteristics of gastric leiomyoblastoma. World Journal of Gastroenterology. 2004;10:3182–3184.

Published In

World Journal of Gastroenterology

ISSN

1007-9327

Publication Date

2004

Volume

10

Start / End Page

3182 / 3184

Related Subject Headings

  • Gastroenterology & Hepatology
  • 1103 Clinical Sciences