Blastoid Mantle Cell Lymphoma: A Case Report
Jung Woong Shin, Jung Hoon Yang, Sung Yul Lee, Jong Suk Lee, Young Lip Park, Moon Kyun Cho, Hyun Deuk Cho
Abstract
Jung Woong Shin, Jung Hoon Yang, Sung Yul Lee, Jong Suk Lee, Young Lip Park, Moon Kyun Cho, Hyun Deuk Cho
Abstract
Mantle cell lymphoma (MCL) is a low-grade malignant lymphoma derived from a subset of B-cells localized in the mantle zone of the lymphoid follicle. MCL commonly involves extranodal sites, usually as a manifestation of disseminated disease. The immunophenotype of MCL is characterized as , and Cyclin . Blastoid mantle cell lymphoma (BV-MCL) is a rare variant and has a more aggressive clinical course. In the blastoid variant, the genetic profile is often more complex and includes tetraploid chromosomes, CCND1 amplification, a higher incidence of p53 gene mutations, and p16(INK4a) deletions. We report a case of a 62-year-old male patient who presented with erythematous subcutaneous nodules on the lower back. He had been treated for BV-MCL of the testis which had occurred 1 year ago. The analysis of histopathological and immunohistochemical examinations of the skin lesions also revealed a BV-MCL.
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Mantle cell lymphoma (MCL) is a low-grade malignant lymphoma derived from a subset of B-cells localized in the mantle zone of the lymphoid follicle. MCL commonly involves extranodal sites, usually as a manifestation of disseminated disease. The immunophenotype of MCL is characterized as , and Cyclin . Blastoid mantle cell lymphoma (BV-MCL) is a rare variant and has a more aggressive clinical course. In the blastoid variant, the genetic profile is often more complex and includes tetraploid chromosomes, CCND1 amplification, a higher incidence of p53 gene mutations, and p16(INK4a) deletions. We report a case of a 62-year-old male patient who presented with erythematous subcutaneous nodules on the lower back. He had been treated for BV-MCL of the testis which had occurred 1 year ago. The analysis of histopathological and immunohistochemical examinations of the skin lesions also revealed a BV-MCL.
Key concepts: Blastoid, Mantle cell lymphoma, Cyclin D1, Immunophenotyping, Pathology, Lymphoma, Mantle zone, Immunohistochemistry