| DERMATOPATHOLOGY ROUND |
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| Year : 2022 | Volume
: 67
| Issue : 6 | Page : 721-724 |
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Coexistence of superficial thrombophlebitis and cutaneous venulitis in behçet's disease: Report of 5 cases
Mayu Sato1, Ko-Ron Chen2, Toshiyuki Yamamoto1
1 From the Department of Dermatology, Fukushima Medical University, Hikarigaoka, Fukushima, Japan
2 Meguro Chen Dermatology Clinic, Tokyo, Japan
Correspondence Address:
Toshiyuki Yamamoto
Department of Dermatology, Fukushima Medical University, Hikarigaoka 1, Fukushima 960-1295
Japan
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/ijd.ijd_229_22
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Previous studies have shown that erythema nodosum-like lesions in patients with Behçet's disease show cutaneous vasculitis of either phlebitis or dermal venulitis. To analyse the clinicopathological characteristics of superficial thrombophlebitis as well as cutaneous venulitis in Behçet's disease. We re-evaluated the histopathological features of superficial thrombophlebitis in patients with Behçet's disease. Five patients, one man and four women, developed superficial thrombophlebitis on the lower extremities. Two of the patients had vascular Behçet's disease, both also developed deep vein thrombosis. One patient had intestinal Behçet's disease. In all cases, venulitis in the overlying lower dermis or adjacent subcutis spreading from the main affected subcutaneous thrombophlebitis lesions was observed. Both neutrophilic venulitis (n = 2) and lymphocytic venulitis (n = 3) were observed at the same depth level or upper/lower location of the thrombophlebitis in the same specimens. In addition, concurrent venulitis with fibrin thrombus and fibrinoid necrosis was observed in one case, suggesting that fibrin thrombus affected both venules and muscular veins. By contrast, arteritis or arteriolitis at the same depth level was not observed. Our results showed histopathological features of coexistent thrombophlebitis and venulitis without involvement of either arteries or arterioles in the biopsied specimens of superficial thrombophlebitis. Further studies are necessary to support that those unique histopathological findings are the characteristic features and significant diagnostic indicators of Behçet's disease.
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