Multilineage Lymphoblastic Lymphoma as an Initial Presentation of Mixed Phenotype Acute Leukemia

Figure 3

Histopathological examination of a cervical lymph node biopsy showing T/myeloid mixed phenotype acute leukemia cells, indicating extramedullary involvement. Hematoxylin and eosin stain ((a) x40; (b) x400) and immunohistochemical stain for terminal deoxynucleotidyl transferase (c), CD3 (d), CD34 (e), myeloperoxidase (f), and c-kit (g). HE, hematoxylin and eosin; MPO, myeloperoxidase; TdT, terminal deoxynucleotidyl transferase.

(a)

(b)

(c)

(d)

(e)

(f)

(g)