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Journal of the American Academy of Dermatology
Volume 50, n° 4
pages 585-590 (avril 2004)
Doi : 10.1016/j.jaad.2003.09.025
accepted : 24 September 2003
Intravascular or intralymphatic histiocytosis associated with rheumatoid arthritis: a report of 4 cases
 

Hirotsugu Takiwaki, MD a, , Atsuko Adachi, MD b, Hiroaki Kohno, MD a, Yutaka Ogawa, MD c
a Department of Dermatology, The University of Tokushima School of Medicine, Tokushima, Japan 
b Department of Dermatology, Hyogo Prefectural Kakogawa Hospital, Kakogawa, Japan 
c Ogawa Dermatological Clinic, Kakogawa, Japan 

*Reprint requests: Hirotsugu Takiwaki, MD, Department of Dermatology, The University of Tokushima School of Medicine, Kuramotocho, Tokushima 770-8503, Japan.
Abstract
Background

Various skin lesions occur in association with rheumatoid arthritis (RA).

Observation

We report a distinctive skin lesion observed in 4 patients with RA. All patients had RA for many years and developed asymptomatic, irregularly shaped erythema over the swollen elbow joints and the nearby part of the forearm. Histopathologically, all cases showed massive aggregates mainly composed of histiocytes in markedly dilated vessels in the dermis, accompanied by a dermal infiltrate of lymphocytes, plasma cells, neutrophils, or a combination of these. A total of 9 cases, including ours, showing similar histopathologic findings have been reported in the literature, of which 7 were associated with RA and presented relatively common clinical appearance.

Conclusion

In spite of some disagreement as to whether the dilated vessels are blood vessels or lymphatics, it is most likely that these 7 cases belong to the same clinical entity closely associated with RA.

The full text of this article is available in PDF format.

 Funding sources: None.
Conflicts of interest: None identified.



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