Do Not Hurt the Nail Matrix: Safe Technique for Proximal Nail Fold Incision

For a better view of the nail matrix during nail surgery, the proximal nail fold (PNF) must be incised and reclined. Two oblique incisions at 45° at the junction of the proximal and lateral nail fold are performed [1, 2]. As the nail matrix is just below the PNF, there is a considerable risk of hurting the matrix, and consequently nail dystroph

Dermoscopy in nail psoriasis

The authors report on their experience with the use of dermoscopy in nail psoriasis and describe their findings with this diagnostic tool.Os autores relatam sua experiência no uso da dermatoscopia na psoríase ungueal e descrevem os achados dessa ferramenta diagnóstica.Santa Casa de São Paulo Clínica de dermatologiaUniversidade de BolonhaHospital do Servidor Público do Estado de São Paulo Clínica de dermatologiaUniversidade Federal de São Paulo (UNIFESP) departamento de dermatologiaUNIFESP, Depto. de dermatologiaSciEL

Tangential Biopsy Thickness versus Lesion Depth in Longitudinal Melanonychia: A Pilot Study

Longitudinal melanonychia can be caused by melanocyte activation (hypermelanosis) or proliferation (lentigo, nevus or melanoma). Histopathologic examination is mandatory for suspicious cases of melanomas. Tangential biopsy of the matrix is an elegant technique avoiding nail plate dystrophy, but it was unknown whether the depth of the sample obtained by this method is adequate for histopathologic diagnosis. Twenty-two patients with longitudinal melanonychia striata were submitted to tangential matrix biopsies described by Haneke. The tissue was stained with hematoxylin-eosin and the specimens were measured at 3 distinct points according to the total thickness: largest (A), intermediate (B) and narrowest (C) then divided into 4 groups according to the histopathologic diagnosis (G1: hypermelanosis; G2: lentigos; G3: nevus; G4: melanoma). The lesions were measured using the same method. The mean specimen/lesion thickness measure values for each group was: G1: 0,59/0,10 mm, G2: 0,67/0,08 mm, G3: 0,52/0,05 mm, G4: 0,58/0,10 mm. The general average thickness for all the specimens/lesions was 0,59/0,08 mm. We concluded that the tangential excision, for longitudinal melanonychia, provides an adequate material for histopathological diagnosis

Management of ingrowing nails: Treatment scenarios and practical tips

This book discusses all therapeutic options regarding ingrowing toenails, from conservative to surgery. No single technique is promoted, but a rational approach according to the clinical presentation is proposed. The authors have a wide experience in nail surgery and master all published procedures. In this book they offer to the reader an algorithm of the management of ingrowing nails, as there is no “cure-all” procedure.SCOPUS: bk.binfo:eu-repo/semantics/publishe

Super U-A Technique for the Treatment of Ingrown Nail

Universidade Federal de São Paulo, Dept Dermatol, São Paulo, BrazilHosp Servidor Publ Municipal, Dept Dermatol, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Dermatol, São Paulo, BrazilWeb of Scienc