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Publisher: Peytchinski Publishing Ltd.
ISSN: 1312-773X (Online)
Issue: 2025, vol. 31, issue3
Subject Area: Dental Medicine
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DOI: 10.5272/jimab.2025313.6404
Published online: 18 August 2025
Case report
J of IMAB. 2025 Jul-Sep;31(3):6404-6408
A RARE CASE OF EXTERNAL EAR SKIN PLASTY WITH XENOGENIC BOVINE COLLAGEN MEMBRANE AND PLATELET-RICH PLASMA
Yanko G. Yankov1, 2
, Ralitsa V. Yotsova3, Lyuben L. Stoev4, 5, Simeon N. Dimanov3,
1) Department of General and Operative Surgery, Medical University of Varna, Bulgaria.
2) Clinic of Maxillofacial Surgery, University Hospital "St. Marina" – Varna, Bulgaria.
3) Department of Oral Surgery, Faculty of Dental Medicine, Medical University of Varna, Bulgaria.
4) Department of General and Clinical Pathology, Forensic Medicine and Deontology, Medical University of Varna, Bulgaria.
5 Clinic of General and Clinical Pathology, University Hospital "St. Marina" - Varna, Bulgaria.
ABSTRACT:
This case report highlights the successful management of a skin defect on the ear concha using a xenogenic bovine collagen membrane and platelet-rich plasma (PRP) following the excision of basosquamous carcinoma in an 89-year-old male patient. The collagen membrane, softened in saline, was precisely adapted to the defect and secured to the underlying cartilage. PRP was prepared using a double-spin centrifugation method and applied to enhance tissue regeneration. Histopathology confirmed complete excision of the carcinoma. Postoperative follow-up revealed excellent integration of the membrane, no complications, and no recurrence over one year. The case demonstrated the synergistic benefits of bovine collagen membranes and autologous PRP in restoring small postoperative skin defects, underscoring the potential for expanded applications in dermatologic surgery. Further research is recommended to assess the efficacy in larger defects and refine protocols for broader clinical use.
Keywords: collagen membrane, basocellular carcinoma, basoscuqamous carcinoma, skin plasty, skin defect, autologous platelet concentrates, platelet-rich plasma,
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Please cite this article as: Yankov YG, Yotsova RV, Stoev LL, Dimanov SN. A Rare Case of External Ear Skin Plasty With Xenogenic Bovine Collagen Membrane and Platelet-rich Plasma. J of IMAB. 2025 Jul-Sep;31(3):6404-6408. [Crossref - 10.5272/jimab.2025313.6404]
Correspondence to: Yanko G. Yankov, Clinic of Maxillofacial Surgery, University Hospital "St. Marina" – Varna; 1, Hristo Smirnenski Blvd., Varna, 9000, Bulgaria; E-mail: yanko_1989@abv.bg
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Received: 24 January 2025
Published online: 18 August 2025