Hydroxyapatite deposition disease: a common disease in an uncommon location

  • Paul BenvenutoEmail author
  • Stéphanie Locas
A 51-year-old right-handed female presented to the emergency department with a 3-day history of progressive right hand thenar eminence pain, swelling and warmth. The patient denied history of fever, trauma or relevant family history. Past medical history is only remarkable for a history of cellulitis of the right wrist 6 years ago. Her current symptoms presented acutely and were concordant with the physical examination findings of swelling, erythema, warmth and painful range of passive and active motion in all directions. There were no skin lacerations; however, palpation of the wrist was exquisitely tender. Given the clinical and physical examination findings, the working diagnosis of cellulitis was entertained with blood work and a right wrist radiograph was performed. The blood work demonstrated a normal white count, C-reactive protein and estimated sedimentation rate. Plain radiographs of the right wrist (Fig.  1) demonstrated an amorphous calcification projecting within the soft...



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The authors declare that they have no conflict of interest.

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The manuscript does not contain clinical studies or identifying patient data.

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Copyright information

© Società Italiana di Medicina Interna (SIMI) 2019

Authors and Affiliations

  1. 1.Department of RadiologyMontreal General Hospital, McGill University Health Centre (MUHC)MontrealCanada
  2. 2.Department of RadiologyCentre hospitalier de l’Université de MontréalMontrealCanada

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