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[en] To describe the chest radiographic findings of acute paraquat poisoning. 691 patients visited the emergency department of our hospital between January 2006 and October 2012 for paraquat poisoning. Of these 691, we identified 56 patients whose initial chest radiographs were normal but who developed radiographic abnormalities within one week. We evaluated their radiographic findings and the differences in imaging features based on mortality. The most common finding was diffuse consolidation (29/56, 52%), followed by consolidation with linear and nodular opacities (18/56, 32%), and combined consolidation and pneumomediastinum (7/56, 13%). Pleural effusion was noted in 17 patients (30%). The two survivors (4%) showed peripheral consolidations, while the 54 patients (96%) who died demonstrated bilateral (42/54, 78%) or unilateral (12/54, 22%) diffuse consolidations. Rapidly progressing diffuse pulmonary consolidation was observed within one week on follow-up radiographs after paraquat ingestion in the deceased, but the survivors demonstrated peripheral consolidation
[en] In application of wide latitude HR-C film to chest x-ray examination, former x-ray diagnosis area is larger and diagnostic information has great deal of promotion. HR-C film is compare to former x-ray film is larger latitude and density level is small, reading is very easily. Especially, high estimate that is in characteristic curve linearity of toe part is good, contrast of low density made good shape and not good describe to overlap is diagnostic information increase mediastinum portion etc
[en] Lesions primarily involving the middle mediastinum are uncommon and include lymph node diseases, cystic lesions, neurogenic tumors, mesenchymal tumors, tumors of mediastinal organ, and other benign processes. In this article, we illustrate imaging findings of a variety of middle mediastinal lesions with pathologic correlation
[en] To evaluate the diagnostic utility of endoscopic ultrasound guided fine needle aspiration cytology in the diagnosis of mediastinal and abdominal lesions Methods: Endoscopic ultrasound guided aspiration cytology was carried out on a total of 155 cases during the study period. The lesions were categorized according to the site of needle biopsy. Clinical impression and provisional diagnoses were compared with the final cytological diagnoses and the percentage of inadequate/non diagnostic smears was calculated. Results: Out of 155 cases, 18 cases (11.5%) were reported as inadequate while a definite diagnosis was given in the remaining cases (88.5%). The mean patient age was 49 +- 14.0 years. There were 105 (68%) males and 50 (32%) females. The most common site biopsied was mediastinal lymph nodes followed by pancreas. The most frequent diagnosis was adenocarcinoma mostly of pancreas followed by chronic granulomatous inflammation of mediastinal and abdominal lymph nodes. The average number of passes made was 3. The size of the lesions ranged from 0.6 cm to 25 cm with mean size of 3 cm as measured by endoscopic ultrasound probe. Endoscopic ultrasound guided aspiration cytology is a useful procedure in the evaluation of deep seated lesions of gastrointestinal tract (GIT), abdominal cavity and mediastinum. (author)
[en] Castleman's disease (Giant lymph node hyperplasia) is a pathologic entity of unknown etiology, as attested to by the number of names it has received, lymphoid hamartoma, angiomatous hamartoma, and giant lymph node, etc. Although the mediastinum is its most common location, it also occurs in the other areas of the body, usually where lymph nodes are normally found. Authors have been experienced 2 cases of histologically proven Castleman's diseases during recent 3 years in Kyung Hee University Hospital, and present its radiological and pathological findings as mediastinal mass
[en] Cryptococcosis is a cosmopolitan mycotic disease caused by a yeast like fungus, Cryptococcus neoformans. Respiratory tract, as portal of entry, is the initial focus of infection. Initial pulmonary lesion may heal with or without dissemination of the disease. Authors reviewed 8 cases of confirmed cryptococcosis during Jan. 1973 to June 1981 at Seoul National University Hospital. The results are as follows: Majority of the cases are below 5 years old. The most common symptoms are fever, abdominal pain and distension, and respiratory symptoms in only 2 cases. The involved organs are liver, lymph node, spleen, meninges, and skin in the order of frequency. Chest P-A roentgenograms show both hilar enlargement with perihilar and basilar, linear and small nodular infiltrations. Miliary nodular lesions and mediastinal lymphadenopathy were also noted
[en] Determination of several normal values were carried out healthy 1805 cases of Korean adults, 1436 cases of male and 369 cases of female, by the drawing and calculation on chest roentgenograms. In many instances, the change of normal values provides an important clinical values, and often is decisive to evaluate the diagnosis, treatment and prognosis of pulmonary, cardiac and mediastinal disease.
[en] Bronchogenic cysts are congenital malformations that are thought to develop from abnormal budding of the embryonic foregut. They are most commonly seen in the mediastinum, especially in the middle and the posterior mediastinum, and they typically show water-attenuation. Anterior mediastinal bronchogenic cyst is extremely rare. Anterior mediastinal bronchogenic cysts with soft-tissue attenuation have not been reported in the English-language literature up until now. We discovered 3 cases of anterior mediastinal well-circumscribed lesions showing soft-tissue attenuation which were diagnosed as thymoma preoperatively, but were later identified as bronchogenic cysts on pathology.
[en] Primary mediastinal leiomyoma is an extremely rare benign tumor of smooth muscle. Most common radiographic appearance is a well circumscribed heterogeneous solid mass. We reported a case of giant cyst-like lesion at the middle mediastinum, which was pathologically confirmed as a primary mediastinal leiomyoma