[Classification of tumors of the thymus gland]

The authors have analysed the data of clinical and pathoanatomical (biopsy) investigations in 41 patients, operated upon for the true tumor of the thymus (thymoma) without any signs of malignant miasthenia. Based on the literature materials and personal observations, it is considered necessary to provide for a rational clinico-anatomical classification of thymomas, which may allow certain prognostication of the results of surgical treatment. An attempt is made to work out a preliminary uniform working scheme of the histological nomenclature for thymomas.