The orbital and sinonasal hemangiopericytoma, 2 case reports:
Background & objective: Hemangiopericytoma is an uncommon vascular tumor derived from the pericytes of Zimmermann. . The most common location of the tumor is pelvic retroperitoneum and musculoskeletal system of the lower extremities. It is rarely seen in the head and neck area. In addition, only...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Fasa University of Medical Sciences
2015-12-01
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| Series: | Journal of Advanced Biomedical Sciences |
| Subjects: | |
| Online Access: | http://jabs.fums.ac.ir/article-1-758-en.pdf |
| _version_ | 1797679615270977536 |
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| author | Maryam Maghbol Mohammadjavad ashraf Negar Azarpira |
| author_facet | Maryam Maghbol Mohammadjavad ashraf Negar Azarpira |
| author_sort | Maryam Maghbol |
| collection | DOAJ |
| description | Background & objective: Hemangiopericytoma is an uncommon vascular tumor derived from the pericytes of Zimmermann. . The most common location of the tumor is pelvic retroperitoneum and musculoskeletal system of the lower extremities. It is rarely seen in the head and neck area. In addition, only 0.8% to 3% of all orbital tumors and less than 5 % of primary sinonasal tumors are primary hemangiopericytoma, which demonstrates that the orbital and sinonasal cavities are rare locations for this tumor.
Case: 2 cases of primary orbital and sinonasal hemangiopericytoma that were successfully treated through surgery were reported.
Conclusion: Hemangiopericytoma is an uncommon vascular tumor which has a potentially malignant behavior. Histopathologic features alone do not predict the biologic behavior of the tumor but the increased cellularity, necrosis, hemorrhage and more than 4 mitotic figures per 10 high power field, may elicit a diagnosis of malignant hemangiopericytoma . The local recurrence and the distant metastasis might also occur with an incomplete excision. The lung, bone and liver are the most common sites of distant metastasis. Thus, the long-term follow-up is recommended after the surgical removal of the tumor. |
| first_indexed | 2024-03-11T23:17:22Z |
| format | Article |
| id | doaj.art-3ac7e5b70d9b44869d6699cb148b54a8 |
| institution | Directory Open Access Journal |
| issn | 2228-5105 2783-1523 |
| language | English |
| last_indexed | 2024-03-11T23:17:22Z |
| publishDate | 2015-12-01 |
| publisher | Fasa University of Medical Sciences |
| record_format | Article |
| series | Journal of Advanced Biomedical Sciences |
| spelling | doaj.art-3ac7e5b70d9b44869d6699cb148b54a82023-09-20T21:21:07ZengFasa University of Medical SciencesJournal of Advanced Biomedical Sciences2228-51052783-15232015-12-0154444448The orbital and sinonasal hemangiopericytoma, 2 case reports:Maryam Maghbol0Mohammadjavad ashraf1Negar Azarpira2 Pathology department of fassa University of Medical Sciences, fassa, Iran. Pathology department of Shiraz University of Medical Sciences, Shiraz, Iran. Transplant research center, Shiraz University of Medical Sciences, Shiraz, Iran. Background & objective: Hemangiopericytoma is an uncommon vascular tumor derived from the pericytes of Zimmermann. . The most common location of the tumor is pelvic retroperitoneum and musculoskeletal system of the lower extremities. It is rarely seen in the head and neck area. In addition, only 0.8% to 3% of all orbital tumors and less than 5 % of primary sinonasal tumors are primary hemangiopericytoma, which demonstrates that the orbital and sinonasal cavities are rare locations for this tumor. Case: 2 cases of primary orbital and sinonasal hemangiopericytoma that were successfully treated through surgery were reported. Conclusion: Hemangiopericytoma is an uncommon vascular tumor which has a potentially malignant behavior. Histopathologic features alone do not predict the biologic behavior of the tumor but the increased cellularity, necrosis, hemorrhage and more than 4 mitotic figures per 10 high power field, may elicit a diagnosis of malignant hemangiopericytoma . The local recurrence and the distant metastasis might also occur with an incomplete excision. The lung, bone and liver are the most common sites of distant metastasis. Thus, the long-term follow-up is recommended after the surgical removal of the tumor.http://jabs.fums.ac.ir/article-1-758-en.pdforbital and sinonasal hemangiopericytomaproptosisepistaxis |
| spellingShingle | Maryam Maghbol Mohammadjavad ashraf Negar Azarpira The orbital and sinonasal hemangiopericytoma, 2 case reports: Journal of Advanced Biomedical Sciences orbital and sinonasal hemangiopericytoma proptosis epistaxis |
| title | The orbital and sinonasal hemangiopericytoma, 2 case reports: |
| title_full | The orbital and sinonasal hemangiopericytoma, 2 case reports: |
| title_fullStr | The orbital and sinonasal hemangiopericytoma, 2 case reports: |
| title_full_unstemmed | The orbital and sinonasal hemangiopericytoma, 2 case reports: |
| title_short | The orbital and sinonasal hemangiopericytoma, 2 case reports: |
| title_sort | orbital and sinonasal hemangiopericytoma 2 case reports |
| topic | orbital and sinonasal hemangiopericytoma proptosis epistaxis |
| url | http://jabs.fums.ac.ir/article-1-758-en.pdf |
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