[Complete resection of Pancoast tumor while receiving preoperative concurrent chemoradiotherapy (CCRT) as an induction therapy--report of a case].

A 60-year-old man complaining of right shoulder pain and numbness of right arm was diagnosed with Pancoast tumor (invasive right apical lung cancer). Chest CT scan showed a tumor, 5 cm in diameter, in the right apex invading the right posterior chest wall. The patient received preoperative CCRT (RT: 40 Gy/20 Fr, cisplatin: CDDP and etoposide: ETP), resulting in tumor regression (PR).

Chronic lung abscess with Pasteurella multocida infection.

We report a patient with chronic lung abscess due to Pasteurella multocida infection that may be caused by the contact with cows in his workplace. Despite its apparent rarity, chronic abscess due to P. multocida should be considered in the differential diagnosis of solitary pulmonary masses.

Sudden onset of interstitial lung disease induced by gefitinib in a lung cancer patient with multiple drug allergy.

Gefitinib is an oral selective inhibitor of the epidermal growth factor receptor tyrosine kinase which is effective for patients with advanced non-small cell lung cancer. A 75-year-old man with advanced adenocarcinoma of the lung was treated with gefitinib. He had a history of allergy to several antibiotics and Welder's lung.

New method of visualizing lymphatics in lung cancer patients by multidetector computed tomography.

Objective: The aim of the present study was to investigate the safety and acceptability of a new method of visualizing lymphatics, including sentinel lymph nodes (SNs), in lung cancer patients using multidetector computed tomography (MDCT).

Methods: Images were obtained using an MDCT scanner (Asteion Multi 4 Detector-Row; Toshiba) at 1, 2, and 3 minutes after percutaneous injection of 1 mL contrast medium (iohexol) near the tumor in 15 patients with small peripheral lung cancers (cT1N0M0). A lymph node was confirmed to be an SN if the attenuation was more than 30 Hounsfield units greater on postcontrast images than on precontrast images.

[A review and development of sentinel node navigation surgery for lung cancer].

Sentinel node navigation surgery (SNNS) for lung caner has not yet been established. Sentinel node (SN) identification using dye or radioisotope has been developed; however, the SN identification rate was less than 50% in the dye method and use of radioisotopes is strongly restricted in Japan. The novel method using a CT or MRI contrast medium are expected.

Primary choriocarcinoma of the lung.

Primary choriocarcinoma (PCC) of the lung is extremely rare, with about 25 cases previously reported. We describe here a patient with PCC of the lung and review previously described cases to establish the clinical characteristics and most appropriate management of this disease. Survival for patients treated with both surgery and chemotherapy was longer than for patients treated with surgery alone, chemotherapy alone, or optional supportive care.

Mediastinal parathyroid cyst with tracheal constriction.

A 63-year-old man visiting a physician for slight dyspnea, attributed to a lump on his neck, was found in ultrasonography and computed tomography to have a cyst extending from the left lobe of the thyroid gland to the superior mediastinum. Radiography showed right deviation of the trachea. The cyst disappeared after fine-needle aspiration, but cyst fluid subsequently reaccumulated and he was admitted to our hospital.