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Adipose Tissue Tumors, Stomach

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  • First Online:
Pathology of the Gastrointestinal Tract

Part of the book series: Encyclopedia of Pathology ((EP))

  • 227 Accesses

Synonyms

Atypical lipomatous tumor/well differentiated liposarcoma; Dedifferentiated liposarcoma; Lipoma; Myxoid liposarcoma; Pleomorphic liposarcoma

Definition

Lipoma is a benign tumor consisting of mature adipocytes.

Atypical lipomatous tumor/well-differentiated liposarcoma is an intermediate malignant tumor consisting of pleomorphic adipocytes and stromal cells with at least focal nuclear atypia.

Dedifferentiated liposarcoma: tumor displaying transition from atypical lipomatous tumor/well-differentiated liposarcoma to other non-adipocytic type mesenchymal tumor with variable malignant grade (sarcoma).

Myxoid liposarcoma is a sarcoma containing variable number of signet-ring lipoblasts and round/oval mesenchymal primitive cells surrounded by a myxoid stroma with delicate arborizing vessels.

Pleomorphic liposarcoma: high-grade sarcoma consisting of variable number of pleomorphic lipoblasts in the absence of atypical lipomatous tumor/well-differentiated liposarcoma features.

Clinical...

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References and Further Reading

  • Krasniqi, A. S., Hoxha, F. T., Bicaj, B. X., Hashani, I. A., Hasimja, S. M., Kelmendi, S. M., & Gashi-Luci, L. H. (2008). Symptomatic subserosal gastric lipoma successfully treated with enucleation. World Journal of Gastroenterology, 14, 5930–5932.

    PubMed  PubMed Central  Google Scholar 

  • Kuhnen, C., Mentzel, T., Haarmann, W., Schwegler, U., Sciot, R., Debiec-Rychter, M., et al. (2010). Atypical lipomatous tumors of the stomach. Clinical, morphological and molecular findings. Pathologe, 31, 199.

    CAS  PubMed  Google Scholar 

  • Seki, K., Hasegawa, T., Konegawa, R., Hizawa, K., & Sano, T. (1998). Primary liposarcorma of the stomach: A case report and a review of the literature. Japanese Journal of Clinical Oncology, 28, 284–288.

    CAS  PubMed  Google Scholar 

  • Thompson, W. M., Kende, A. I., & Levy, A. D. (2003). Imaging characteristics of gastric lipomas in 16 adult and pediatric patients. American Journal of Radiology, 181, 981–985.

    Google Scholar 

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Author information

Authors and Affiliations

  1. Faculty of Medicine of the University of Porto and Institute of Molecular Pathology and Immunology of the University of Porto, Rua Dr. Roberto Frias S/N, 4200-465, Porto, Portugal

    José Manuel Lopes

Authors
  1. José Manuel Lopes
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Corresponding author

Correspondence to José Manuel Lopes .

Editor information

Editors and Affiliations

  1. Faculty of Medicine of Porto University, Centro Hospitalar São João and Ipatimup/i3S, Porto, Portugal

    Fátima Carneiro

  2. Serviço de Anatomia Patológica, Instituto Português de Oncologia de Lisboa de Francisco Gentil, Lisbon, Portugal

    Paula Chaves

  3. Faculdade de Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal

    Paula Chaves

  4. Department of Pathology, Ankara University Medical School, Sihhiye, Ankara, Turkey

    Arzu Ensari

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Lopes, J.M. (2017). Adipose Tissue Tumors, Stomach. In: Carneiro, F., Chaves, P., Ensari, A. (eds) Pathology of the Gastrointestinal Tract. Encyclopedia of Pathology. Springer, Cham. https://doi.org/10.1007/978-3-319-40560-5_1559

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  • DOI: https://doi.org/10.1007/978-3-319-40560-5_1559

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-40559-9

  • Online ISBN: 978-3-319-40560-5

  • eBook Packages: MedicineReference Module Medicine

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