Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases
Angiosarcomas are aggressive tumors of vascular endothelial origin, occurring sporadically or in association with prior radiotherapy. We compared clinicopathologic and biologic features of sporadic angiosarcomas (SA) and radiation-associated angiosarcomas (RAA). Methods. From a University of Michiga...
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doaj-c6fc76a90e634e9baf332b508b52c6782020-11-24T22:37:18ZengHindawi LimitedSarcoma1357-714X1369-16432013-01-01201310.1155/2013/798403798403Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 CasesJennifer Hung0Susan M. Hiniker1David R. Lucas2Kent A. Griffith3Jonathan B. McHugh4Amichay Meirovitz5Dafydd G. Thomas6Rashmi Chugh7Joseph M. Herman8Tunnell Cancer Center, Beebe Medical Center, Rehoboth Beach, DE 19971, USAStanford University, Stanford, CA 94304, USAUniversity of Michigan Hospital, Ann Arbor, MI 48109, USAUniversity of Michigan Hospital, Ann Arbor, MI 48109, USAUniversity of Michigan Hospital, Ann Arbor, MI 48109, USAHadassah Hebrew University Medical Center, Jerusalem, IsraelUniversity of Michigan Hospital, Ann Arbor, MI 48109, USAUniversity of Michigan Hospital, Ann Arbor, MI 48109, USAJohns Hopkins Hospital, Baltimore, MD 21287, USAAngiosarcomas are aggressive tumors of vascular endothelial origin, occurring sporadically or in association with prior radiotherapy. We compared clinicopathologic and biologic features of sporadic angiosarcomas (SA) and radiation-associated angiosarcomas (RAA). Methods. From a University of Michigan institutional database, 37 SA and 11 RAA were identified. Tissue microarrays were stained for p53, Ki-67, and hTERT. DNA was evaluated for TP53 and ATM mutations. Results. Mean latency between radiotherapy and diagnosis of RAA was 11.9 years: 6.7 years for breast RAA versus 20.9 years for nonbreast RAA (P=0.148). Survival after diagnosis did not significantly differ between SA and RAA (P=0.590). Patients with nonbreast RAA had shorter overall survival than patients with breast RAA (P=0.03). The majority of SA (86.5%) and RAA (77.8%) were classified as high-grade sarcomas (P=0.609). RAA were more likely to have well-defined vasoformative areas (55.6% versus 27%, P=0.127). Most breast SA were parenchymal in origin (80%), while most breast RAA were cutaneous in origin (80%). TMA analysis showed p53 overexpression in 25.7% of SA and 0% RAA, high Ki-67 in 35.3% of SA and 44.4% RAA, and hTERT expression in 100% of SA and RAA. TP53 mutations were detected in 13.5% of SA and 11.1% RAA. ATM mutations were not detected in either SA or RAA. Conclusions. SA and RAA are similar in histology, immunohistochemical markers, and DNA mutation profiles and share similar prognosis. Breast RAA have a shorter latency period compared to nonbreast RAA and a significantly longer survival.http://dx.doi.org/10.1155/2013/798403 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jennifer Hung Susan M. Hiniker David R. Lucas Kent A. Griffith Jonathan B. McHugh Amichay Meirovitz Dafydd G. Thomas Rashmi Chugh Joseph M. Herman |
spellingShingle |
Jennifer Hung Susan M. Hiniker David R. Lucas Kent A. Griffith Jonathan B. McHugh Amichay Meirovitz Dafydd G. Thomas Rashmi Chugh Joseph M. Herman Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases Sarcoma |
author_facet |
Jennifer Hung Susan M. Hiniker David R. Lucas Kent A. Griffith Jonathan B. McHugh Amichay Meirovitz Dafydd G. Thomas Rashmi Chugh Joseph M. Herman |
author_sort |
Jennifer Hung |
title |
Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases |
title_short |
Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases |
title_full |
Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases |
title_fullStr |
Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases |
title_full_unstemmed |
Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases |
title_sort |
sporadic versus radiation-associated angiosarcoma: a comparative clinicopathologic and molecular analysis of 48 cases |
publisher |
Hindawi Limited |
series |
Sarcoma |
issn |
1357-714X 1369-1643 |
publishDate |
2013-01-01 |
description |
Angiosarcomas are aggressive tumors of vascular endothelial origin, occurring sporadically or in association with prior radiotherapy. We compared clinicopathologic and biologic features of sporadic angiosarcomas (SA) and radiation-associated angiosarcomas (RAA). Methods. From a University of Michigan institutional database, 37 SA and 11 RAA were identified. Tissue microarrays were stained for p53, Ki-67, and hTERT. DNA was evaluated for TP53 and ATM mutations. Results. Mean latency between radiotherapy and diagnosis of RAA was 11.9 years: 6.7 years for breast RAA versus 20.9 years for nonbreast RAA (P=0.148). Survival after diagnosis did not significantly differ between SA and RAA (P=0.590). Patients with nonbreast RAA had shorter overall survival than patients with breast RAA (P=0.03). The majority of SA (86.5%) and RAA (77.8%) were classified as high-grade sarcomas (P=0.609). RAA were more likely to have well-defined vasoformative areas (55.6% versus 27%, P=0.127). Most breast SA were parenchymal in origin (80%), while most breast RAA were cutaneous in origin (80%). TMA analysis showed p53 overexpression in 25.7% of SA and 0% RAA, high Ki-67 in 35.3% of SA and 44.4% RAA, and hTERT expression in 100% of SA and RAA. TP53 mutations were detected in 13.5% of SA and 11.1% RAA. ATM mutations were not detected in either SA or RAA. Conclusions. SA and RAA are similar in histology, immunohistochemical markers, and DNA mutation profiles and share similar prognosis. Breast RAA have a shorter latency period compared to nonbreast RAA and a significantly longer survival. |
url |
http://dx.doi.org/10.1155/2013/798403 |
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