Pterygium unguis

Pterygium unguis
Other names	Dorsal pterygium
Specialty	Dermatology
Causes	Lichen planus

Pterygium unguis (or dorsal pterygium^[1]: 660) forms as a result of scarring between the proximal nailfold and matrix, with the classic example being lichen planus, though it has been reported to occur as a result of sarcoidosis and Hansen's disease.^[2]

See also

• Pterygium inversum unguis
• List of cutaneous conditions

References

1. Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.
2. James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.

Further reading

• Grover, Chander; Singal, Archana; Bhattacharya, Sambit Nath (2021). "Pterygium Complicating Nail Psoriasis and Trachyonychia: Is It Rare?". Skin Appendage Disorders. 7 (4). S. Karger AG: 298–305. doi:10.1159/000513455. ISSN 2296-9195. PMC 8280421. PMID 34307478.
• Wechsuruk, Panrudee; Bunyaratavej, Sumanas; Kiratiwongwan, Rungsima; Suphatsathienkul, Pranittra; Wongdama, Supisara; Leeyaphan, Charussri (2021). "Clinical features and treatment outcomes of nail lichen planus: A retrospective study". JAAD Case Reports. 17. Elsevier BV: 43–48. doi:10.1016/j.jdcr.2021.09.015. ISSN 2352-5126. PMC 8526913.

External links