[Mediastinal Thoracic Duct Cyst Under Thoracoscopic Surgery:Report of a Case].

A 58-year-old woman was pointed out an abnormal electrocardiogram during a physical examination. A chest computed tomography( CT) scan revealed a 50-mm-sized cystic mass in the posterior mediastinum near the tracheal bifurcation. The mass exhibited growth during follow-up imaging, leading to a surgical resection.

[Congenital Pericardial Defect Incidentally Discovered During Lung Cancer Surgery:Report of Two Cases].

Congenital pericardial defect is a rare congenital condition. It is often asymptomatic and discovered incidentally, frequently during autopsies, medical investigations, or surgery. Nevertheless, there are few reported cases of its discovery during lung cancer surgery.

[Hepatic Hernia through a Diaphragmatic Defect Mimicking Pleural Tumor:Report of a Case].

Hepatic heria in adult without history of trauma or surgery is rare, and is sometimes operated under the diagnosis of lung or diaphragmatic tumor. Here, we report a case of hepatic hernia which had been preoperatively suspected of pleural tumor and surgically treated. At surgery, multiple lesions mimicking ectopic endometriosis were found on the diaphragma and hepatic profrusion was found from one of lesions.

Preoperative predictors of lymph node metastasis in clinical T1 adenocarcinoma.

Background: The subcategory "solid component of tumor" is a new criterion of tumor categories in the updated eighth edition of the TNM classification. Nevertheless, the predictors of lymph node metastasis among patients with clinical T1 adenocarcinoma, based on the TNM classification 8 edition, remain unclear. This study aimed to identify the preoperative predictors of lymph node metastasis in clinical T1 adenocarcinoma by comparing clinicopathological characteristics between the groups with and without lymph node metastasis.

[Preoperative spontaneous regression of type B3 thymoma;report of a case].

A 65-year-old man experiencing chest oppression was admitted to our hospital. Contrast-enhanced chest computed tomography (CT) showed a 71×52-mm cystic mass with an enhanced wall in the thymus. The CT-guided needle biopsy of the tumor only revealed the presence of necrotic tissue.