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FRI0167 Clinicopathologic evaluation of nodular lesions of behÇet’s disease
  1. C Demirkesen1,
  2. N Tüzüner1,
  3. C Mat2,
  4. M Senocak3,
  5. N Büyükbabani4,
  6. Y Tüzün2,
  7. H Yazici5
  1. 1Pathology
  2. 2Dermatology
  3. 3Biostatistic
  4. 4Pathology, Istanbul Medical Faculty, Istanbul, Turkey
  5. 5Internal Medicine, Division of Rheumatology, Cerrahpasa Medical Faculty, Istanbul University


Background Among the cutaneous manifestations, nodular lesions are rather common in Behçet’s disease (BD).

Objectives The histologic nature of these lesions has been a matter of controversy.

Methods In order to establish their distinguishing features, biopsies taken from nodular lesions of 24 patients with BD, 25 with nodular vasculitis (NV), and 20 with erythema nodosum (EN) were compared.

Results Statistical analysis revealed that there was insignificant difference between BD and NV. However, neutrophil predominating infiltrate in the subcutis was more common in BD, while necrosis and granuloma formation were encountered more frequently in NV. On the other hand, there was a statistically significant difference between BD and EN. Septal panniculitis, lymphocyte predominating infiltrate, absence of many vascular changes as well as vasculitis, and necrosis were features in favour of EN.

Conclusion EN-like lesions of BD are mainly neutrophilic vascular reactions with accompanying changes in subcutis. Their histology are more similar to NV than EN. Thus suggests that these nodular lesions of BD may, indeed be due to vasculitis. On the other hand, the histologic feature of these nodular lesions has enough specificity to differentiate them from EN due to other causes.

?Copyright © 2001 by the American Society of Clinical Pathologists. Reprinted by Permission?

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