Knuckle Pads – Practical Diagnostic Issues


Author(s):

Anca Chiriac 1,2,3 , Piotr Brzezinski 4 , Liliana Foia 5 , Cristian Podoleanu 6 , Cosmin Moldovan 7 , Simona Stolnicu 8,9

Affiliation:

1 Apollonia University, Department of Dermatology, Iași, Romania
2 “Petru Poni” Institute of Macromolecular Chemistry of the Romanian Academy, Iași, Romania
3 Nicolina Medical Center, Iași, Romania
4 6th Military Support Unit, Utska, Poland
5 “Gr.T. Popa” University of Medicine and Pharmacy, Iași, Romania
6 Department of Internal Medicine, University of Medicine and Pharmacy, Tîrgu Mureș, Romania
7 Department of Medical Simulation, University of Medicine and Pharmacy, Tîrgu Mureș, Romania
8 Department of Pathology, University of Medicine and Pharmacy, Tîrgu Mureș, Romania
9 Histopat Invest Laboratory, Tîrgu Mureș, Romania

DOI: 10.1515/jim-2017-0044

ABSTRACT

Knuckle pads are thickening of the skin over the extensor surface of the proximal interphalan- geal joints. Clinical picture, ultrasound imaging, and histopathological examination of the skin biopsy ascertain the diagnosis. In routine practice, two main differential diagnoses are important: knuckle pads vs. pseudo-knuckle pads and idiopathic vs. non-idiopathic forms of knuckle pads.

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