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Related Experiment Videos

[Calcifying panniculitis].

S Buchet1, D Blanc, P Humbert

  • 1Service de Dermatologie I, Hôpital St-Jacques, Besançon.

Annales De Dermatologie Et De Venereologie
|January 1, 1992
PubMed
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Calcifying panniculitis, a rare condition linked to chronic kidney disease, can manifest at anticoagulant injection sites. Early management involves normalizing calcium-phosphate levels and surgical removal of necrotic tissue.

Area of Science:

  • Dermatology
  • Nephrology
  • Pathology

Background:

  • Calcifying panniculitis is a rare condition within the spectrum of calciphylaxis, often associated with chronic renal failure and impaired calcium-phosphate metabolism.
  • The condition is triggered by a 'challenger' agent, such as calcium heparinate, leading to painful subcutaneous nodules that progress to necrotic plaques.

Observation:

  • The case involved a 67-year-old woman with chronic renal failure, presenting with calcifying panniculitis primarily at anticoagulant injection sites on the abdomen and thighs.
  • Histological examination revealed subcutaneous fat vessel involvement mimicking mediacalcosis, followed by calcium-phosphate deposits in the interadipocyte spaces.
  • Electron microscopy confirmed calcium crystal presence within connective tissue cells and the extracellular matrix.

Findings:

Related Experiment Videos

  • Calcifying panniculitis in patients with chronic renal failure presents with subcutaneous nodules and necrosis at injection sites.
  • Histopathology demonstrates vascular changes and extracellular calcium-phosphate deposition.
  • Calcium crystals are observed within cellular and extracellular compartments.

Implications:

  • Management strategies should focus on normalizing the calcium-phosphate product by addressing hyperparathyroidism.
  • Surgical excision of necrotic areas is crucial for healing and preventing complications.
  • The use of diphosphonates may be considered based on pathophysiological rationale.