Sharon Bertelsen

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Isolated atelectasis of the middle lobe has been known for many years as the "middle lobe syndrome". Several clinical studies have shown that it may bae caused by malignant tumours. A 10-year study of 135 patients with isolated middle lobe atelectasis is presented. Fifty-eight patients (43%) had malignant tumours. Of 38 who had a thoracotomy, lung resection(More)
Asymptomatic bacteraemia following balloon dilatation was assessed in 20 adults with oesophageal stricture. Asymptomatic bacteraemia occurred in 12 of 19 patients. The source of the bacteraemia appeared to be the patients' oropharyngeal flora. The bacteraemia was not of clinical importance in our patients, but might lead to endocarditis in predisposed(More)
Symptoms, signs, and definitions of strangulation and incarceration in diaphragmatic herniation are surveyed, and four patients with strangulated diaphragmatic hernia are reported on. Although the symptoms may be uncharacteristic, the diagnosis is easily made, if kept in mind. X-ray examination of the chest, possibly supplemented by a barium meal, usually(More)
Hemangiopericytoma is a rare tumor, arising from pericytes. Its outcome is difficult to foretell, as the usual criteria for malignancy are unreliable in this neoplasm. Three cases of primary pulmonary hemangiopericytoma are presented and the pathologic and clinical aspects are briefly reviewed. All three patients were surgically treated, and two are still(More)
In many instances of risk assessment, one has to estimate the potential risk of chemicals using limited experimental data, or no empirical data at all. In such cases, the use of non-empirical parameters, which can be calculated directly from structure, is a viable option for the risk assessor. Graph invariants have been used in predicting properties of(More)
Tracheo-innominate artery fistula is an uncommon but frequently fatal complication of tracheostomy. The case histories of three patients with tracheo-innominate artery fistula are presented, and one is a longterm survivor. The haemorrhage can be controlled by hyperinflation of the cuff of the tracheostomy tube or by direct digital compression of the artery.(More)
Eighty-nine cases of pulmonary hamartoma were studied. There were 51 men and 38 women, with a mean age of 57.5 years (range 14 to 76 years). A histologic diagnosis from examination of the resection specimens was obtained in all patients who had operations. Moreover, transthoracic needle aspiration biopsies were performed in 40 patients, with a diagnostic(More)