Thymoma type B1

A thymic epithelial neoplasm characterized by the presence of expanded areas which resemble the normal thymic cortex. The neoplastic epithelial cells are small and scant and there is a dense T-lymphocytic component present. Areas of medullary differentiation with or without Hassall's corpuscles are also present. It may be associated with myasthenia gravis, pure red cell aplasia, and hypogammaglobulinemia. It has a low grade malignant potential. The majority of cases occur in the anterior mediastinum as Masaoka stage I tumors. A minority of the cases occur as stage II tumors.

Also known as: lymphocyte-predominant thymoma, lymphocyte-rich thymoma, organoid thymoma, predominantly cortical thymoma, thymoma type B1

1578 clinical trials for this condition and its sub-types, 0 tagged with Thymoma type B1 itself.