Subungual Exostosis Quiz
Reviewed By:
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
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Bumps on my arm
Yellowish skin lumps
Lumps on my wrist
Pink, bumpy skin
Depressions on nail
Lump on the back
Many skin nodules
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Learn more about Subungual exostosis
Content updated on Sep 20, 2022
Subungual exostosis is a benign bony outgrowth that occurs under the nail of a toe or finger tip. It often happens after trauma or infection in the area and is most common in children and adolescents.
Lumps under the skin
Red or yellow skin lumps
Change in nail shape
Your doctor may ask these questions to diagnose subungual exostosis
Do you feel a lump/lumps under your skin?
Do you have yellow or red lumps/bumps on your skin?
Has your nail shape changed?
To remove subungual exostosis, surgery is performed with the affected toe or finger anesthetized. The bone is scraped clean to prevent future outgrowth.
View the symptoms of Subungual exostosis
Diseases related to Subungual exostosis
References
Yousefian F, Davis B, Browning JC. Pediatric Subungual Exostosis. Cutis. 2021 Nov;108(5):256-257. doi: 10.12788/cutis.0380. PMID: 35100532.
https://www.mdedge.com/dermatology/article/248294/pediatrics/pediatric-subungual-exostosis
Shah SN. Subungual exostosis. Indian J Pathol Microbiol. 2021 Jul-Sep;64(3):598-599. doi: 10.4103/IJPM.IJPM_656_20. PMID: 34341284.
https://www.ijpmonline.org/article.asp?issn=0377-4929;year=2021;volume=64;issue=3;spage=598;epage=599;aulast=Shah
Vaccaro M, Bartolomeo LD, Cannavo SP. Dupuytren Subungual Exostosis. Indian Pediatr. 2021 Feb 15;58(2):201. PMID: 33632969.
https://www.indianpediatrics.net/feb2021/201.pdf
Tritto M, Mirkin G, Hao X. Subungual Exostosis on the Right Hallux. J Am Podiatr Med Assoc. 2021 Dec 15;111(6). doi: 10.7547/20-209. PMID: 35294159.
https://japmaonline.org/view/journals/apms/111/6/20-209.xml
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Reviewed By:
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
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