Prediction of improvement after extended thymectomy in non-thymomatous myasthenia gravis patients.

Background: It is popularly believed that myasthenia gravis (MG) patients show acetylcholine receptor antibody (AChRAb) production associated with the thymus (germinal centers, approximately 80%). It has been suggested that thymectomy can remove the area of autoantibody production. This study aimed to determine whether the solid volume of the thymus calculated using three-dimensional (3D) imaging could be used to predict the efficacy of thymectomy.

[Pulmonary resection in renal cell carcinoma metastasis;the influence of histologic atypia of the metastatic focus on preoperative or perioperative diagnosis].

Unlabelled: The diagnostic potential of histological atypia grades in distinguishing between primary lung tumors and renal pulmonary metastases.

Objective: In cases of pulmonary resection for renal cell carcinoma patients, both the preoperative and perioperative diagnosis of lung cancer may be complicated by the need to distinguish between a primary lung tumor and metastatic renal tumor. The degree of histological atypia (grade) of the suspected metastatic focus may indicate the source of the lesion.