Tibial Plasmablastic Lymphoma in a HIV-Negative Child: A Novel Extraoral Localisation

Table 1

Panel of immunohistochemical markers performed and results are as follows.

CD138	Diffuse strong positive in neoplastic cells
CD38	Positive in few neoplastic cells
CD56	Negative in neoplastic cells
Ki-67	Increased proliferative index approximately 98%
Kappa and lambda	Monoclonal pattern of distribution with kappa strong positive in neoplastic cells
CD20	Negative in neoplastic cells. Highlight mature B-lymphocytes in background
CD79a	Negative in neoplastic cells
PAX-5	Negative in neoplastic cells
CD30	Negative in neoplastic cells
Alk-1	Negative in neoplastic cells
CD3	Negative in neoplastic cells. Highlight mature T-lymphocytes in background.
CD45	Negative in neoplastic cells
CD5	Negative in neoplastic cells