An improved method of studying fingernail morphometry: application to the early detection of fingernail clubbing
| Autor: | Supriya Goyal, Salim Omarouayache, Rafik Mohammedi, W Andrew D Griffiths |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
medicine.medical_specialty
integumentary system business.industry education Hyperkeratosis Computerized analysis Osteoarthropathy Secondary Hypertrophic Early detection Pseudoclubbing Improved method Dermatology Anatomy Nail plate medicine.disease Surgery Diagnosis Differential Nail Diseases Nails Medicine Humans business |
| Zdroj: | Journal of the American Academy of Dermatology. 39(4 Pt 1) |
| ISSN: | 0190-9622 |
| Popis: | The detection of clubbing of the fingernails by inspection has been used since it was first described by Hippocrates as a sign of empyema. Although interest in clubbing has remained constant, its study is largely subjective.1,2 Clubbing is found in a wide variety of conditions that include pulmonary, cardiovascular, hepatic, thyroid, and gastrointestinal diseases.1,3 Pseudoclubbing also occurs as a congenital trait (Filbert or watch-glass nails) and in some cutaneous conditions characterized by hyperkeratosis of the palms and soles. We define pseudoclubbing as an overcurvature of the nails in both the longitudinal and transverse axes, with preservation of a normal Lovibond angle.4 Both clubbing and pseudoclubbing show increased curvature of the nail plate in the transverse and longitudinal axes, whereas true clubbing also shows an increase of the skin-nailplate angle at the proximal nailfold (Lovibond’s angle). We also describe a new method to accurately visualize and quantify changes in the morphology of the nail plate by means of digital cameras and computerized analysis. METHODS |
| Databáze: | OpenAIRE |
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