Abstract
An elastofibroma is a benign and rare fibrous lesion that most commonly occurs in the periscapular region. A gastrointestinal elastofibroma is extremely rare. In the present study, six cases of elastofibromas including a case in the stomach were evaluated. The gastric case revealed widely distributed lesions in the submucosal layer with perivascular fibrotic lesions (PVFLs) and some PVFLs were distributed to the skip lesions of elastofibroma. These PVFLs were also observed in all five periscapular cases and invariably contained elastic fibers which showed various degree of maturation. CD34-positive stromal cells were observed not only in elastofibromas but also in PVFLs in each case. These findings suggested the possibility of the PVFLs were the primary lesions of elastofibroma and their vascular-centric development. The percentage of the CD105-positive vessels in elastofibroma group was significantly higher than in the control group. This result indicates active neovascularization in elastofibromas.
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Acknowledgements
We would like to thank Mr. F. Mutoh and Mr. S. Nakahara for their valuable contributions to the immunohistochemical and ultrastructural studies.
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Kai, K., Kusano, K., Sakai, M. et al. Active neovascularization and possible vascular-centric development of gastric and periscapular elastofibromas. Virchows Arch 454, 181–188 (2009). https://doi.org/10.1007/s00428-008-0722-6
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DOI: https://doi.org/10.1007/s00428-008-0722-6