Erdheim-Chester Disease and Small Lymphocytic Lymphoma Collision Tumour Presenting as a Perirenal Mass

<div>Immunohistochemical findings of perirenal mass. (a) CD79a, (b) CD3, (c) CD5, (d) CD68. (e) Flow cytometric findings of perirenal mass typical of SLL (CD19+, Kappa+, CD5+, CD23+, CD10-, and FMC7-).</div>

Case Reports in Pathology

fig3

Figure 3

Figure 3: Erdheim-Chester Disease and Small Lymphocytic Lymphoma Collision Tumour Presenting as a Perirenal Mass 