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Updated: May 7, 2026

Non-Invasive Visualization of Nailbed Microvascular Morphology in Mice Using Capillaroscopy
Published on: February 28, 2025
Nail pathology
Josette André1, Ursula Sass, Bertrand Richert
1Head of the Dermatology and Dermatopathology Department, University Hospitals Saint-Pierre, 322 Rue Haute - 1000 Brussels, Belgium and University Hospital Brugmann, 4 Place Van Gehuchten - 1020 Brussels, Belgium, Hôpital Universitaire des Enfants Reine Fabiola, 15 Avenue Crocq - 1020 Brussels, Belgium, Université Libre de Bruxelles, Belgium.
Abstract:
When dealing with nails, pathologic examination is often indispensable to reach an accurate diagnosis. This requires a biopsy correctly performed by the dermatologist, a specimen correctly handled in the pathology lab, and a pathologist with good knowledge of the various nail conditions. The normal nail histology is first described in this paper. The pathologic aspects of melanocytic lesions, nonmelanocytic tumors of the nail apparatus, inflammatory nail conditions, and onychomycosis are then considered, together with their main differential diagnoses.
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