The Usefulness of a Simple Classification for Bronchoscopic Findings for Diagnosis of Peripheral Pulmonary Tumour.

Background: Normal bronchial epithelium has been described in terms of transparency and smoothness. No studies have compared bronchoscopic and pathological findings in the identification of bronchial epithelium.

Objectives: This study aimed to classify bronchoscopic findings for peripheral pulmonary tumour (PPT) for accurate bronchoscopic diagnosis accounting for the presences of bronchial epithelium and bronchial stenosis using an ultrathin bronchoscope.

Ultrathin Bronchoscopy with Multimodal Devices for Peripheral Pulmonary Lesions. A Randomized Trial.

Rationale: The combination of an ultrathin bronchoscope, navigational technology, and endobronchial ultrasound (EBUS) seems to combine the best of mutual abilities for evaluating peripheral pulmonary lesions, but ultrathin bronchoscopes that allow the use of EBUS have not been developed so far.

Objectives: To compare the diagnostic yield of transbronchial biopsy under EBUS, fluoroscopy, and virtual bronchoscopic navigation guidance using a novel ultrathin bronchoscope with that using a thin bronchoscope with a guide sheath for peripheral pulmonary lesions.

Methods: In four centers, patients with suspected peripheral pulmonary lesions less than or equal to 30 mm in the longest diameter were included and randomized to undergo transbronchial biopsy with EBUS, fluoroscopy, and virtual bronchoscopic navigation guidance using a 3.

Primary pulmonary mucinous (colloid) adenocarcinoma with postoperative bone metastasis.

We describe rare primary pulmonary mucinous (colloid) adenocarcinoma in an 80-year-old man. Chest computed tomography revealed a lobulated, well-defined nodule with a diameter of 3.2 cm in the right middle lobe.

The usefulness of endobronchial ultrasonography-guided transbronchial needle aspiration at the lobar, segmental, or subsegmental bronchus smaller than a convex-type bronchoscope.

Background: Endobronchial ultrasonography-guided transbronchial needle aspiration (EBUS-TBNA) is a standard procedure for approaching the lesion adjacent to extrapulmonary bronchus. We started to use wedge insertion of a convex endobronchial ultrasound bronchoscope into bronchi narrower than the diameter of the bronchoscope itself to perform EBUS-TBNA. Our objective was to investigate the bronchus in which EBUS-TBNA was possible and safe.

[Pleomorphic carcinoma of the lung; report of a case].

A 83-year-old male was referred to our hospital for further examination of abnormal shadow on chest radiography. Chest computed tomography (CT) showed a tumor mass in his right lung. Bronchoscopy brushing cytology revealed non-small cell lung carcinoma and right middle lobectomy was performed.

[Pulmonary alveolar proteinosis detected by a nodular lesion on chest computed tomography].

A 74-year-old woman was admitted to our hospital for further examination of chest X-ray abnormality. The chest computed tomography (CT) revealed a nodular lesion (1.0 cm in diameter) in right lung.

[Pleomorphic carcinoma of the lung with idiopathic interstitial pneumonia; report of a case].

A 69-year-old man was referred to our hospital for further examination of the abnormal shadow on chest radiography. Chest computed tomography (CT) showed a tumor mass, 4 cm in size, in his right lung (S6) and interstitial pneumonia in the surrounding lung parenchyma Bronchoscopic brushing cytology revealed squamous cell carcinoma cells. Right lower and middle lobectomy was performed due to the metastasis to interlober lymph node.

[Pleomorphic carcinoma of the lung; report of a case].

A 66-year-old female complained of cough, and was referred to our hospital. Chest radiography and computed tomography (CT) showed a tumor mass near the right hilum and atelectasis of the middle lobe. Bronchoscopy revealed a whitish polypoid tumor obstructing the middle lobe bronchus.

[Small adenocarcinoma of the lung under long-term observation].

A 68-year-old man presented with symptoms of common cold at our hospital on March 8, 1995. Ground glass opacity (GGO) was detected in the right S 4 a by high resolution computed tomography (HRCT) during a routine examination. Except for mild traction of the nearest pleura, the lesion itself demonstrated little change on HRCT images for 2 years.

Assessment of usefulness of endobronchial ultrasonography in determination of depth of tracheobronchial tumor invasion.

Study Objective: We assessed the usefulness of endobronchial ultrasonography in the determination of the depth of tumor invasion of the tracheobronchial wall.

Methods: We performed a needle-puncture experiment on normal tissue of 45 specimens to determine the laminar structure of the tracheobronchial wall. In addition, we compared the ultrasonographic determinations of tumor invasion from 24 lung cancer cases with the histopathologic findings.

[Thoracoscopic surgery by use of endo-GIA].

In the field of respiratory surgery there is a need for further research and clinical experience with thoracoscopic surgery. It has already proved excellent for pain reduction and mizing of the wound. We describe the method and results of thoracoscopic surgery, which was started in June, 1992.