PMID- 30107667 OWN - NLM STAT- MEDLINE DCOM- 20181003 LR - 20190318 IS - 0529-5807 (Print) IS - 0529-5807 (Linking) VI - 47 IP - 8 DP - 2018 Aug 8 TI - [Angiofibroma of soft tissue: a clinicopathologic analysis of 24 cases]. PG - 616-621 LID - 10.3760/cma.j.issn.0529-5807.2018.08.009 [doi] AB - Objective: To investigate the clinicopathologic and genetic features, pathologic diagnosis and differential diagnosis of angiofibroma of soft tissue(AFST). Methods: The clinicopathologic characteristics of 24 cases diagnosed at Fudan University Shanghai Cancer Center from 2011 to 2017 were analyzed; immunohistochemical staining and interphase fluorescence in situ hybridization (FISH) were performed, and the literatures were also reviewed. Results: There were 15 male and 9 female (maleratiofemale=1.7ratio1.0) patients with age of onset ranging from 8 to 68 years (mean, 45 years). Fourteen cases occurred in extremities, including upper limbs (n=3) and lower limbs (n=11); seven cases were in the trunk, and 1 case each was in the temporal region, retroperitoneum and liver, respectively. Clinically, the tumors usually presented as a slowly growing painless mass. Tumor sizes ranged from 0.8 to 14 cm (mean 4.6 cm). Microscopically, most lesions were well-circumscribed, with fibrous capsules. Few cases infiltrated the surrounding fibrofatty tissue focally. The tumors were mainly composed of sparse short spindle cells and numerous small, branching, thin-walled blood vessels distributed in amyxoid, fibromyxoid or collagenous matrix, often accompanied by medium-sized, round or irregular and ecstatic vessels at the tumor periphery.By immunohistochemistry, all tested cases expressed vimentin (5/5), and showed variable positivity for EMA (2/4), ER (1/2), PR (2/3), alpha-SMA (1/18)and desmin (1/10). Ki-67 proliferation index were all less than 5%. CD34, CD31 and ERG staining clearly outlined the contours of blood vessels in the stroma. Four cases were tested for NCOA2 gene rearrangement by FISH, of which three were positive. Follow-up data was available in 17 patients (range, 3 to 69 months; mean, 30 months) were all free of disease. Conclusions: Soft tissue angiofibroma is a benign fibroblastic neoplasm characterized by a prominent and complex vasculature set in a myxoid-to-collagenous stroma, and cytogenetically a distinctive NCOA2 gene rearrangement. Caution should be exercised for the possibility of potentially misinterpretation of AFST as vascular tumors and other myxoid soft tissue tumors. FAU - Xu, X L AU - Xu XL AD - Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China. FAU - Liu, J G AU - Liu JG AD - Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University and Shanghai Respiratory Research Institute, Shanghai 200032, China. FAU - Sun, M AU - Sun M FAU - Yu, L AU - Yu L FAU - Liu, Q Y AU - Liu QY FAU - Bai, Q M AU - Bai QM FAU - Wu, L J AU - Wu LJ FAU - Wang, J AU - Wang J LA - chi GR - 81202083/National Natural Science Foundation of China-Youth Foundation/ GR - 15ZR1407500/Shanghai Municipal Natural Science Foundation/ GR - 2015ZB0201/Shanghai Key Developing Disciplines/ GR - HDC12014105/Shanghai Hospital Development Center Emerging Advanced Technology Joint Research Project/ PT - Journal Article PT - Review PL - China TA - Zhonghua Bing Li Xue Za Zhi JT - Zhonghua bing li xue za zhi = Chinese journal of pathology JID - 0005331 RN - 0 (ACTA2 protein, human) RN - 0 (Actins) RN - 0 (Desmin) RN - 0 (NCOA2 protein, human) RN - 0 (Nuclear Receptor Coactivator 2) RN - 0 (Vimentin) SB - IM MH - Actins/analysis MH - Adolescent MH - Adult MH - Aged MH - *Angiofibroma/blood supply/chemistry/genetics/pathology MH - Child MH - China MH - Desmin/analysis MH - Diagnosis, Differential MH - Female MH - Gene Rearrangement MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Mitotic Index MH - Neoplasms, Fibrous Tissue MH - Nuclear Receptor Coactivator 2/genetics MH - *Soft Tissue Neoplasms/blood supply/genetics/pathology MH - Tumor Burden MH - Vimentin/analysis MH - Young Adult OTO - NOTNLM OT - Angiofibroma OT - Diagnosis, differential OT - Immunohistochemistry OT - In situ hybridization, fluorescence EDAT- 2018/08/16 06:00 MHDA- 2018/10/04 06:00 CRDT- 2018/08/15 06:00 PHST- 2018/08/15 06:00 [entrez] PHST- 2018/08/16 06:00 [pubmed] PHST- 2018/10/04 06:00 [medline] AID - 10.3760/cma.j.issn.0529-5807.2018.08.009 [doi] PST - ppublish SO - Zhonghua Bing Li Xue Za Zhi. 2018 Aug 8;47(8):616-621. doi: 10.3760/cma.j.issn.0529-5807.2018.08.009.