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[Bullous amyloidosis].

M H Houman1, M Smiti Khanfir, I Ben Ghorbel

  • 1Service de Médecine Interne, Hôpital la Rabta, Tunis, Tunisie. houman.habib@rns.tn

Annales De Dermatologie Et De Venereologie
|May 4, 2002
PubMed
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Bullous amyloidosis, a rare skin manifestation of systemic amyloidosis, can occur during renal amyloidosis progression. This case highlights an exceptional presentation and effective colchicine treatment for bullous lesions.

Area of Science:

  • Dermatology
  • Nephrology
  • Pathology

Background:

  • Systemic amyloidosis commonly causes skin damage, but bullous lesions are exceptionally rare, with only 27 cases reported.
  • This study focuses on a rare instance of bullous amyloidosis occurring during the progression of renal amyloidosis.

Observation:

  • A 61-year-old man presented with edema and nerve enlargement, diagnosed with nephrotic syndrome and renal amyloidosis.
  • After treatment stabilized renal damage, he developed a non-pruritic papular and bullous eruption on the limbs and folds.
  • Cutaneous biopsy confirmed bullous amyloidosis with amyloid deposits and intra-epidermal detachment.

Findings:

  • The patient's bullous eruption resolved within two months of colchicine treatment.
  • Renal damage remained stable 21 months post-treatment.

Related Experiment Videos

  • No concomitant myeloma was detected.
  • Implications:

    • This case presents unique evolutionary characteristics of bullous amyloidosis not previously described.
    • A potential alteration in the physicochemical properties of amyloid protein may explain the bullous eruption and renal stabilization.
    • Further research into the pathogenesis of bullous amyloidosis is warranted.