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Pterygium inversum unguis associated with stroke
Manjunath Vadmal1, Ilya Reyter, Shaheen Oshtory
1Department of Dermatology, University of Southern California, Keck School of Medicine and Veterans Administration, Los Angeles, California, USA. vadmal@usc.edu
Journal of the American Academy of Dermatology
|August 23, 2005
Summary
Pterygium inversum unguis (PIU) is a rare nail condition where the nail bed fuses to the nail plate. This case presents the first histologic features of acquired PIU linked to stroke-induced paralysis.
Area of Science:
- Nail disorders
- Dermatology
- Neurology
Background:
- Pterygium inversum unguis (PIU) is a rare nail abnormality characterized by the adherence of the distal nail bed to the nail plate.
- The etiology of PIU remains largely unknown, with few cases reported and no established histopathologic descriptions.
- This condition can be congenital, acquired, or idiopathic.
Observation:
- An unusual case of acquired PIU affecting only the right fingernails is detailed.
- The patient experienced a cerebral vascular accident (stroke) leading to right-sided hemiplegia and sensory deficits.
- This clinical presentation suggests a potential link between neurological events and the development of PIU.
Findings:
- The study presents the first documented histopathologic features of Pterygium inversum unguis.
- Histologic examination revealed specific changes in the nail unit associated with the acquired condition.
- These findings provide novel insights into the pathophysiology of PIU.
Implications:
- The findings contribute to understanding the pathogenesis of rare nail disorders.
- The association with cerebrovascular accidents may suggest underlying systemic or neurological factors influencing PIU.
- Further research into the histopathology and potential triggers of PIU is warranted for improved diagnosis and management.