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Tumoral calcinosis

M J Geirnaerdt1, H M Kroon, R O van der Heul

  • 1Department of Diagnostic Radiology, University Hospital Leiden, The Netherlands.

Skeletal Radiology
|February 1, 1995
PubMed
Summary

Tumoral calcinosis can mimic bone tumors on MR imaging, showing bone marrow involvement and septal enhancement. Correct diagnosis relies on excluding metabolic disorders and identifying characteristic lesion features.

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Area of Science:

  • Radiology
  • Orthopedic Oncology
  • Pathology

Background:

  • Tumoral calcinosis is a rare condition characterized by calcium deposits.
  • It can present with symptoms that mimic malignant bone tumors.
  • Accurate differentiation is crucial for appropriate patient management.

Observation:

  • A patient presented with tumoral calcinosis affecting the buttock and ischial bone.
  • Magnetic resonance imaging (MRI) revealed bone marrow involvement and septal enhancement after gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) administration.
  • These imaging findings were initially suggestive of a chondrosarcoma or other malignant musculoskeletal tumor.

Findings:

  • The absence of an underlying metabolic disorder was noted.
  • The lesion exhibited distinct fluid-calcium levels.
  • Macroscopic and microscopic examination confirmed the diagnosis of tumoral calcinosis.

Implications:

  • This case highlights the importance of considering tumoral calcinosis in the differential diagnosis of bone lesions, even with concerning imaging features.
  • Accurate diagnosis relies on integrating imaging findings with clinical presentation, biochemical data, and histopathology.
  • Correctly diagnosing tumoral calcinosis avoids unnecessary aggressive treatments for presumed malignancies.

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