Dactylitis: A pictorial review of key symptoms - 25/03/20

Doi : 10.1016/j.diii.2020.01.005

A. Hamard ^a,^b,^⁎ , R. Burns ^a, A. Miquel ^a, J.M. Sverzut ^a, V. Chicheportiche ^a, M. Wybier ^a, V. Bousson ^a,^c
^a Department of Radiology, Lariboisiere Hospital, AP–HP, 75010 Paris, France
^b Department of Radiology, EA 2415, Medical Imaging Group, Nimes University Hospital, 30029 Nîmes, France
^c Université de Paris, Diderot Paris 7, B30A CNRS UMR 7052, 75010 Paris, France

^⁎Corresponding author. Department of Radiology, EA 2415, Medical Imaging Group, Nimes University Hospital, Place du Professeur-Robert-Debré, 30029 Nîmes, France.Department of Radiology, EA 2415, Medical Imaging Group, Nimes University HospitalPlace du Professeur-Robert-DebréNîmes30029France

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Abstract

Dactylitis refers to a global swelling of a finger or a toe giving it a clinical sausage-shape presentation. It is an extremely suggestive symptom as it guides the rheumatologist towards a shortlist of diagnoses. However, radiologists are less familiar with dactylitis. The aim of this review is to detail and illustrate the main causes of dactylitis using standard X-ray imaging, ultrasound, computed tomography and magnetic resonance imaging in order to make radiologists more familiar with this symptom by illustrating the various conditions that are associated with dactylitis including infection, peripheral spondyloarthritis, sarcoidosis, microcrystalline deposition, osteoid osteoma, and sickle cell disease.

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Keywords : Dactylitis, Infections, Spondylarthritis, Sarcoidosis, Osteoid osteoma