Histological transformation of MALT lymphoma to plasma cell leukemia after rituximab-containing therapy
Mucosa-associated lymphoid tissue (MALT) lymphoma is a relatively common lymphoma that belongs to the group of marginal zone B cell lymphoma. Approximately 30% of MALT lymphomas show plasmacytic differentiation (PCD) on histological evaluation, and PCD is predominantly found in extragastric MALT lymphoma [1, 2]. We herein report a case of extragastric MALT lymphoma accompanied by secondary plasma cell leukemia (PCL) after rituximab-containing chemotherapy.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
Written informed consent was obtained from the patient.
- 2.Cohen SM, Petryk M, Varma M, Kozuch PS, Ames ED, Grossbard ML (2006) Non-Hodgkin’s lymphoma of mucosa-associated lymphoid tissue. Lymphoma Oncol Oncol 1111:1100–1117Google Scholar