Bone Metabolism and Diseases Open access Peer reviewed

Unique presentation of immune thrombocytopenic purpura in adult osteopetrosis: A case report

Shane Johns, Joanna Fair, Austin R. Pantel, Thomas M. Anderson

Radiology Case Reports | Jul 4, 2026

Abstract

Abstract

Osteopetrosis is a genetic disorder characterized by impaired osteoclast function, leading to diffuse osteosclerosis, brittle bones, and hematologic abnormalities. Herein, we report the case of a 55-year-old woman diagnosed with adult-onset osteopetrosis at age 33 after imaging demonstrated dense and marbled long bones, sclerotic medullary canals, vertebral endplate thickening, and hepatosplenomegaly. Bone marrow biopsy revealed preserved megakaryocytes, yet she experienced recurrent episodes of thrombocytopenia that responded to oral steroids and ultimately resolved following splenectomy, supporting an immune-mediated etiology of thrombocytopenia clinically managed as immune thrombocytopenic purpura. The clinical course was further complicated by multiple periprosthetic fractures, highlighting both the diagnostic and management challenges of this condition.

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Authors

Researchers on this paper

Shane Johns

first | University of New Mexico | ORCID 0009-0008-1934-6737

Joanna Fair

middle | University of New Mexico Hospital

Austin R. Pantel

middle | Hospital of the University of Pennsylvania | ORCID 0000-0001-8649-9970

Thomas M. Anderson

last | University of New Mexico Hospital

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Citation

BibTeX

@article{Johns2026Unique,
  title = {Unique presentation of immune thrombocytopenic purpura in adult osteopetrosis: A case report},
  author = {Shane Johns and Joanna Fair and Austin R. Pantel and Thomas M. Anderson},
  journal = {Radiology Case Reports},
  year = {2026},
  doi = {10.1016/j.radcr.2026.06.065},
  url = {https://doi.org/10.1016/j.radcr.2026.06.065}
}

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