Review of Hematopathology Consult Cases: A Two-Year Experience in a Tertiary Referral Center in Lebanon

Figure 5

Primary mediastinal (thymic) large B-cell lymphoma. (a) The tumor cells are large with pleomorphic nuclei and abundant vacuolated cytoplasm. They are positive for CD20 (b) and CD23 (c) and show nonspecific cytoplasmic staining with TdT (d). This case was misclassified as a B-lymphoblastic leukemia/lymphoma.

(a)

(b)

(c)

(d)