Miscellaneous Carcinomas of the Thymus Borislav Alexiev, M.D. Fabio R. Tavora, M.D., Ph.D. Undifferentiated Thymic Carcinoma Undifferentiated thymic carcinoma represents between 1% and 27% of thymic carcinomas.1,2,3,4,5,6,7 By definition, these…
Lymphoepithelioma-Like Carcinoma Borislav A. Alexiev, M.D. Allen P. Burke, M.D. Terminology Lymphoepithelioma-like carcinoma (LELC) of the thymus is a primary thymic carcinoma characterized by a syncytial growth of undifferentiated carcinoma…
Mucoepidermoid Carcinoma Borislav A. Alexiev, M.D. Fabio R. Tavora, M.D., Ph.D. Terminology Thymic mucoepidermoid carcinoma is a rare morphologic variant of primary thymic carcinoma characterized by the presence of squamous…
Basaloid Carcinoma of the Thymus Borislav A. Alexiev, M.D. Allen P. Burke, M.D. Terminology Thymic basaloid carcinoma is a rare subtype of thymic carcinoma, with < 40 cases published in…
Squamous Cell Carcinoma Borislav A. Alexiev, M.D. Fabio R. Tavora, M.D., Ph.D. Terminology Thymic squamous cell carcinoma shows features of squamous cell carcinoma as seen in other organs, with or…
Thymic Carcinomas Borislav A. Alexiev, M.D. Anja C. Roden, M.D. Allen P. Burke, M.D. Classification Thymic carcinomas are a heterogeneous group of malignant epithelial tumors with diverse morphology that resemble…
Miscellaneous Thymomas Borislav A. Alexiev, M.D. Anja C. Roden, M.D. Fabio R. Tavora, M.D., Ph.D. Metaplastic Thymoma (Biphasic Thymoma, Thymoma with Pseudosarcomatous Stroma) Terminology Metaplastic thymoma is a biphasic tumor…
Micronodular Thymoma with Lymphoid Stroma Borislav A. Alexiev, M.D. Anja C. Roden, M.D. Terminology Micronodular thymoma (MNT) is an organotypical thymic epithelial neoplasm characterized by multiple, discrete epithelial nodules separated…
Type AB Thymoma (Mixed Thymoma) Borislav A. Alexiev, M.D. Anja C. Roden, M.D. Terminology Type AB thymoma is an organotypical thymic epithelial neoplasm composed of a mixture of a lymphocyte-poor…
Type B3 Thymoma (Epithelial-Rich, Cortical, Atypical) Borislav A. Alexiev, M.D. Anja C. Roden, M.D. Terminology Type B3 thymoma is an organotypic thymic epithelial tumor predominantly composed of medium-sized round or…
