International reproducibility study of thymic epithelial tumors staging: pT stage is an issue. proposals for improvement. A RYTHMIC/ITMIG study

The proposals for the T stage of thymic epithelial tumors (TET) in the 8th edition of the UICC/AJCC TNM classification were mainly based on an International Thymic Malignancy Interest Group (ITMIG) worldwide database including patients with available pathologic stage information [1]. In the TNM classification, pT1a stage includes patients with TET limited to the thymus and mediastinal fat, whereas mediastinal pleural invasion is defined as pT1b. pTNM stage further differentiates pericardial invasion (pT2) from lung invasion (pT3).
Source: Lung Cancer - Category: Cancer & Oncology Authors: Source Type: research