[Peripheral Pulmonary Artery Aneurysm with Internal Thoracic Artery-Pulmonary Artery Shunt].

An 82-year-old woman with past history of pulmonary nontuberculous mycobacterial infection complained of hemoptysis and was pointed out the strongly stained nodule in the middle lobe of the right lung on chest enhanced computed tomography (CT), which was suggested to be peripheral pulmonary artery aneurysm. Angiography of the right internal thoracic artery (RITA) revealed the peripheral pulmonary artery aneurysm with the shunt from the branch of the RITA, which was considered to be the cause of hemoptysis. Transcatheter arterial embolization was performed for the branch of the RITA 2 times, however, the hemoptysis recurred again after 5 months.

[Resection of Multiple Thymic Carcinomas of the Thymus].

The patient was a 70-year-old woman who was found to have 2 mediastinal tumors on chest computed tomography(CT). One was located in the anterior mediastinum, and the other was in the upper mediastinum. Based on previous imaging studies, it was revealed that the 2 tumors had been increasing in size for 5 years.

[Dedifferentiated Liposarcoma of the Anterior Mediastinum;Report of a Case].

A 69-year-old man was pointed out the anterior mediastinal mass on chest computed tomography (CT). Since the thymoma was suspected, thymectomy was performed through median sternotomy. The tumor was encapsulated and did not directly invade adjacent organs.

[CA19-9 Producing Mixed Invasive Mucinous and Non-mucinous Adenocarcinoma;Report of a Case].

A 66-year-old woman was referred to our hospital due to the abnormal shadow on chest X-ray. Computed tomography(CT) scan revealed a mass in the lower lobe of the right lung and the serum CA19-9 level was 1,600 U/ml. Under the diagnosis of adenocarcinoma by bronchoscopic brushing cytology, right lower lobectomy with mediastinal lymph node dissection was performed.

[A case of mediastinal growing teratoma syndrome with acute megakaryoblastic leukemia].

We report a case of a 38-year-old man who was diagnosed with a mediastinal germ cell tumor. After induction chemotherapy, the tumor marker levels normalized, but the tumor itself continued to grow. Surgical resection was performed successfully, but the patient developed acute megakaryoblastic leukemia 6 months later, and induction and consolidation therapies failed to achieve remission.

Primary thymic adenocarcinoma coexisting with type AB thymoma: a rare case with long-term survival.

Thymic carcinoma is a rare tumor. The most common histological subtype is squamous cell carcinoma, and only a few cases of thymic adenocarcinoma have been reported. A case of papillary adenocarcinoma of thymic origin that coexisted with type AB thymoma as a separate nodule is presented herein.

[Primary pulmonary synovial sarcoma confirmed by gene expression analysis].

We report a patient who was diagnosed with synovial sarcoma based on gene expression analysis. A 39-year-old male visited a local hospital due to left chest pain. Chest compued tomography (CT) showed a lung tumor located mainly at the lingula of the left lung, and extending to the bifurcation of the upper and lower lobar bronchi.

Masaoka stage and histologic grade predict prognosis in patients with thymic carcinoma.

Background: Thymic carcinoma is a rare tumor. Limited data are available regarding the effectiveness of treatment and the prognosis of thymic carcinoma. The present study aimed to clarify the prognostic factors in patients who underwent resection.

Absence of gene mutations in KIT-positive thymic epithelial tumors.

Background: Overexpression of KIT, a tyrosine kinase receptor protein encoded by the proto-oncogene c-kit, is observed in human neoplasms such as gastrointestinal stromal tumors (GISTs), myeloproliferative disorders, melanoma and seminoma. In patients with GIST, overexpression of mutated KIT within the tumor is predictive of response to molecular targeted therapy using imatinib. However, the role of KIT expression in thymic carcinoma is not fully understood.