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KMID : 0363220230610030194
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Korean Journal of Dermatology
2023 Volume.61 No. 3 p.194 ~ p.198
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A Case of Multiple Miliary Osteoma Cutis on the Face of Middle-Aged Woman after Injection of Unspecified Filler Material
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Yoon Hee-Jung
Hong Eun-Ji
Kim Jung-Eun
Park Young-Lip
Lee Sang-Hoon
Lee Sul-Hee
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Abstract
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Multiple miliary osteoma cutis (MMOC) is a rare variant of osteoma, characterized by multiple eruptive hard nodules on the face. A 70-year-old female presented with multiple solid skin-colored papules on both cheeks, unresponsive to conventional medical treatments. She reported receiving an injection of an unknown cosmetic filler substance into her face by an unlicensed medical practitioner 20 years ago. Facial computed tomography showed multiple small calcifications immediately adjacent to foreign material assumed to be the filler substance in the dermis. Histological examination revealed osteoclasts, osteocytes, and eosinophilic bony tissue in the dermis, suggestive of osteoma cutis. Although the pathogenesis remains unclear, inflammation caused by injected foreign material may induce metaplastic transformation of multipotent mesenchymal cells into osteoblasts, resulting in heterotopic ossification. Dermatologists should be aware that MMOC may occur following injection of foreign material by unlicensed practitioners. Performing a detailed history and clinical evaluation may aid in the diagnosis of such recalcitrant skin lesions.
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KEYWORD
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Dermal fillers, Ossification, heterotopic
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