Angiolymphoid hyperplasia with eosinophilia: report of a lesion mimicking soft tissue tumor of extremely long duration.

We present a large sized lesion of the right upper arm in which characteristics of the angiolymphoid hyperplasia with eosinophilia (ALHE) intermingled with those of Kimura's disease (KD). The laboratory findings, the prominent vascular proliferation and the features of endothelial cells were suggestive of ALHE. However, the long duration of the disease, the site of involvement, the abundant lymphoid component forming lymph follicles with germinal centers and the fibrosis are features of KD. In agreement with other reports, our case shows that clinicopathologically there is an overlap between ALHE and KD.