Infiltration of CD68 positive, S100 negative histiocytes in Erdheim-Chester disease
Infiltration of CD68 positive, S100 negative histiocytes in Erdheim-Chester disease
(A) The biopsy obtained from perirenal tissue showed an infiltration of numerous histiocytes (H&E, x100). The histiocytes were CD68-positive (B: x100) and S100-negative (C: x100).