RARE TUMOR OF THE STOMACH: SOLITARY FIBROUS TUMOR – A CASE REPORT

Tamara J Bošković; Mirjana Živojinov; Jelena R Ilic Sabo; Radovan Veljković; Zorana Budakov; Srđan Živojinov

doi:10.2298/5432

Tamara J Bošković Medical faculty, University of Novi Sad, Hajduk Veljkova 1-3,Novi Sad, Serbia; Center for pathology and histology, Clinical center of Vojvodina, Hajduk Veljkova 1-3
Mirjana Živojinov Medical faculty, University of Novi Sad, Hajduk Veljkova 1-3,Novi Sad, Serbia; Center for pathology and histology, Clinical center of Vojvodina, Hajduk Veljkova 1-3
Jelena R Ilic Sabo Medical faculty, University of Novi Sad, Hajduk Veljkova 1-3,Novi Sad, Serbia; Center for pathology and histology, Clinical center of Vojvodina, Hajduk Veljkova 1-3
Radovan Veljković Medical faculty, University of Novi Sad, Hajduk Veljkova 1-3,Novi Sad, Serbia; Clinic for Abdominal, Endocrine and Transplantation Surgery ,Clinical center of Vojvodina, Hajduk Veljkova 1-9,Novi Sad, Serbia
Zorana Budakov Medical faculty, University of Novi Sad, Hajduk Veljkova 1-3,Novi Sad, Serbia; Clinic for Transfusion , Clinical center of Vojvodina, Hajduk Veljkova 1,Novi Sad, Serbia
Srđan Živojinov Medical faculty, University of Novi Sad, Hajduk Veljkova 1-3,Novi Sad, Serbia; Clinic for Urological Surgery ,Clinical center of Vojvodina, Hajduk Veljkova 1-9, Novi Sad, Serbia

DOI: https://doi.org/10.2298/5432

Abstract

Introduction: Solitary fibrous tumors are rare soft tissue tumors submesothelial origin variable malignant potential. The most common localization is pleural, whereas only 0.6% are extra pleural localization. Solitary fibrous tumor of the peritoneum, especially of gastric serosa is a extremely rare form of this tumor.

Case report: This paper presents the case of a patient aged 65. Histopathological analysis of removed tissue showed the presence of tumor tissue built of spindle cells, elongated nuclei with moderately abundant cytoplasm. Cells are in a non-cohesive arrangement, in smaller areas distributed in the form of palisade. There are amount of hipocellular connective tissue, hyalinised, with small foci of dystrophic calcification. Mitoses are rare (less than 3/10 HPF). Blood vessels surround the connective tissue. Reviewed material does not contain elements of the parent organ. Immunohistochemically there is positivity on CD34 and vimentin, negativity on S100, SMA, CD117, dezmin, and Ki-67 is <2%. Change was diagnosed as a solitary fibrous tumor.

Conclusion: Extra thoracic solid fibrous tumors show mainly the biological behavior of benign soft tissue tumors, with greater ability to recur with local destruction or in the form of distant metastasis. It is extremely important to make the proper diagnosis, as well as clinically control the patients.

Author Biography

Jelena R Ilic Sabo, Medical faculty, University of Novi Sad, Hajduk Veljkova 1-3,Novi Sad, Serbia; Center for pathology and histology, Clinical center of Vojvodina, Hajduk Veljkova 1-3

Imam problem sa postavljanjem redosleda autora...ne uspevam da promenim redosled. Ja sam poslednji autor, a dr Tamara Bošković je prvi, a ostali autori su poredjani odgovarajućim redosledom.

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