Cardiac Tamponade Associated with the Presentation of Anaplastic Large Cell Lymphoma in a 2-Year-Old Child

Figure 3

Skin biopsy.

(a) H&E, 40x: dermis with dense cellular infiltrate

(b) H&E, 400x: at high magnification, the infiltrate shows histiocytes, lymphocytes, and atypical large cells with a kidney-shaped eccentric nucleus

(c) Immunohistochemistry: large cells show cytoplasmic CD30 staining

(d) Immunohistochemistry: nuclear and cytoplasmic ALK staining