Molecular analysis of jejunal, ileal, caecal and recto-sigmoidal human colonic microbiota using 16S rRNA gene libraries and terminal restriction fragment length polymorphism.

Microbiota in gut contents of jejunum, ileum, caecum and recto-sigmoid colon obtained from three elderly individuals at autopsy were compared using 16S rRNA gene libraries and terminal restriction fragment length polymorphism (T-RFLP). Random clones of 16S rRNA gene sequences were isolated after PCR amplification with universal primer sets of total genomic DNA extracted from each sample of gut contents. An average of 90 randomly selected clones were partially sequenced (about 500 bp).

Intratumoral necrosis of lung carcinoma: a potential diagnostic pitfall in incremental dynamic computed tomography analysis of solitary pulmonary nodules?

The authors determined the pattern and enhancement range of necrotic lung carcinoma using incremental dynamic computed tomography (CT). Thirty-seven pathologically proven lung cancers (range, 8-57 mm in diameter) were evaluated using incremental dynamic CT. Scans were obtained before and 30 seconds, 2 minutes, and 5 minutes after the onset of contrast material injection.

Small peripheral lung carcinoma evaluated with incremental dynamic CT: radiologic-pathologic correlation.

Purpose: To correlate incremental dynamic computed tomographic (CT) and pathologic findings in peripheral lung cancer.

Materials And Methods: Lung lesions smaller than 3 cm in diameter were evaluated in 18 patients. CT values of the inner area of the nodule at plain CT and at 30 seconds, 2 minutes, and 5 minutes after administration of nonionic contrast material were calculated with incremental dynamic CT.

Solitary pulmonary nodule: preliminary study of evaluation with incremental dynamic CT.

Purpose: To use incremental dynamic computed tomography (CT) to evaluate solitary pulmonary nodules (SPNs).

Materials And Methods: Thirty-two adult patients with SPNs less than 3 cm in diameter had 18 primary lung cancers, 10 tuberculomas, and four hamartomas. The CT numbers of the inner area of the nodule were calculated before and 30 seconds, 2 minutes, and 5 minutes after administration of contrast material.

Superior vena cava syndrome caused by a right apical tense bulla.

Superior vena cava (SVC) syndrome is caused by several diseases, although to our knowledge, a bullous lesion has not been reported previously. In the present case, severe pleural adhesion prevented the expanding bulla from stretching the visceral pleura and from compressing the residual lung, subsequently causing compression of the SVC and thus SVC syndrome.

[A case of pulmonary leiomyosarcoma followed up for five years].

A 70-year-old woman with leiomyosarcoma, followed up for 5 years as tuberculoma, is described. The tumor, in the left lower lobe, had enlarged from 1.5 x 1.

The effects of cromolyn sodium in dogs undergoing high-frequency oscillation superimposed on conventional mechanical ventilation.

The effects on gas exchange of superimposition of high-frequency oscillation (HFO) (40 Hz) on conventional mechanical ventilation were investigated in mongrel dogs with eucapnic gas exchange on conventional mechanical ventilation (CMV). The dogs were anesthetized, paralyzed, and ventilated with CMV until stable. Oscillation was then superimposed for 15 min, followed by CMV alone for a further 30 min.

[An adult case of dyspnea and overinflation of the residual lung with disappearance of the postpneumonectomy space after left pneumonectomy].

Mediastinal shift and overinflation of the residual lung after pneumonectomy are well known, and sometimes cause pulmonary insufficiency. However, most of such cases occur after surgery in childhood or adolescence. We present a 49-year-old woman who had dyspnea and severe overinflation of the residual lung after left pneumonectomy.

[A case of primary pulmonary paraganglioma].

A case of primary paraganglioma of the lung in a 48-year-old woman is presented. She was found to have a coin lesion in lower lobe on routine radiography. Results of bronchoscopic examination were negative, and exploratory right thoracotomy was performed.

[A case of miliary tuberculosis and chest wall cold tuberculous abscess with contents draining into the epidural space].

A 37-year-old man was admitted because of miliary tuberculosis. However, his fever and general condition did not improve with chemotherapy. Six months later, paraplegia occurred following sudden radicular back pain without any alteration of segmental sensation.

Palliation of left main bronchus compression due to malignant tumor by intubation via a tracheostomy tube.

Intubation of the left main bronchus via a tracheostomy tube was performed in a patient with local recurrence of lung cancer associated with invasion and obstruction of the left main bronchus after right sleeve pneumonectomy. The result was satisfactory not only for preventing asphyxia, but also for maintaining the patency of the airway after extubation of the endotracheal tube.

[Improvement of mediastinal shift after left pneumonectomy by injection of sulfur hexafluoride].

We encountered a 53-year-old patient with a carcinoid in the left main bronchus. His left lung volume was decreased and the mediastinum was markedly shifted to left. After sulfur hexafluoride (SF6) was injected into the postpneumonectomy pleural space, the mediastinum gradually moved to the center.

Feasibility of intraoperative cytodiagnosis of lung cancer.

Of 354 thoracotomies, 114 cases involved intraoperative cytopathologic evaluation. The study included 86 men and 28 women, and 184 specimens were examined. Smears were taken from the lung lesion or lymph node and the chest wall or bronchial stump by imprint or needle aspiration.

Constitutional and echocardiographic variability of the normal electrocardiogram in children.

To understand better the normal electrocardiogram and to improve the diagnosis of left ventricular hypertrophy (LVH), the authors examined RV5 and SV1 + RV5, using a special computational technique, in relation to body size, heart size, and the distance between the heart and the chest wall in 7-year-old normal subjects. Boys and girls were analyzed separately. Using multiple regression analysis with a total of 16 constitutional and echocardiographic parameters as the predictor variable, the authors selected a minimum set of parameters and found that the greater the left ventricular mass (LVM) and the left ventricular cavity and the shorter the distance between the heart and the chest wall, the greater the RV5 and SV1 + RV5.