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Case Reports: Rare disease
Sedimentation sign: a classical finding on tumorous calcinosis
  1. Verena Pires1,
  2. Rita Pereira Cavaca2,
  3. Rui Caetano Oliveira3 and
  4. Cristina Marques1
  1. 1Radiology, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
  2. 2Orthopaedics and Traumatology, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
  3. 3Pathology, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
  1. Correspondence to Dr Verena Pires; verena_pires{at}hotmail.com

Abstract

The authors describe the case of a man in his 60s who presented with progressive pain and swelling of the right hip. Imaging features showed a densely calcified lesion associated with ‘sedimentation sign’. Laboratory tests revealed slight hyperphosphataemia. Surgical excision of the lesion was performed. Histological examination revealed chalky material surrounded by fibrosis and giant multinucleated cells, compatible with tumorous calcinosis. Patient made a full recovery. We report a rare case of tumorous calcinosis and compare this condition with its common mimics.

  • radiology
  • orthopaedics

https://doi.org/10.1136/bcr-2021-247613

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    Footnotes

    • Contributors VP wrote the manuscript. RPC was the assisting surgeon in the mentioned surgery. RCO was the pathologist who analysed and described the sample. CM critically reviewed and gave the final suggestions. All authors contributed to finalising the manuscript as submitted.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.