1/9. Radionuclide studies in bronchogenic carcinoma of the Hilum. Scintigraphy and tomography: their complementary features.Thirty-eight cases with direct or indirect signs of hilar masses were investigated by roentgenologic, radioisotopic and surgical methods. Reasonable correlation between tomography and scintigraphy was confirmed, substantiating their complementary nature. Bronchogenic carcinoma of the central airways was most frequent among the hilar masses. Masses as well as other involvement of the bronchovascular structures of the hilum on conventional tomography were confirmed by the gallium-67 scan, and inhalation and perfusion scintigraphy. Some cases which simulated bronchogenic carcinoma were presented. Hilar masses without destruction of the bronchovascular structures showed normal inhalation and perfusion scintigrams with positive gallium-67 accumulation. These lesions were metastatic cancer, malignant lymphoma, and sarcoidosis. If these diseases involve the airways and the vessels of the hilum, differentiation from bronchogenic carcinoma may naturally be difficult.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/9. thrombosis of the IVC and azygous continuation of IVC by bronchogenic cancer: CT and MRI appearance.The authors describe the computed tomography (CT) and magnetic resonance imaging (MRI) findings in a patient with thrombosis of the inferior vena cava (IVC) and azygous continuation of the IVC caused by bronchogenic carcinoma. CT has been touted as the modality of choice for mediastinal evaluation. MRI is presently considered to be the initial modality of choice for mediastinal vessel evaluation. MRI is noninvasive, there is no radiation dose to the patient, multiplanar imaging can be done, and there is no need for iodinated contrast material. The satisfactory evaluation of an individual patient may require the use of MRI and CT in a complementary fashion.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
3/9. Bronchogenic glomangiomyoma with local intravenous infiltration.Most glomus tumours occur in the dermis and subcutaneous tissues. lung glomus tumours are quite rare. The current authors present the first reported case of a lung-derived glomangiomyoma, the rarest variant of glomus tumour. A 56-yr-old female was admitted with haemoptysis. Chest computed tomography showed an approximately 5-cm-diameter mass in the right lower lobe with mucoid impaction. After a right lower lobectomy, a diagnosis of glomangiomyoma was made. The tumour had grown endobronchially and its maximal diameter was 5.5 cm. Although cytologically benign, glomus tumour cells had visibly infiltrated neighbouring vessels. These results suggest that a bronchogenic glomangiomyoma has a low-grade malignancy potential and warrants close follow-up.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
4/9. Occult fatal pulmonary embolism with disseminated intravascular coagulation. An unusual case masquerading as miliary tuberculosis.We report a fatal case of occult pulmonary embolism complicating bronchogenic carcinoma which presented with rapidly progressive pulmonary miliary shadows and respiratory failure. A clotting profile abnormality compatible with disseminated intravascular coagulation was noted. Postmortem examination showed extensive clots occluding the major pulmonary vessels and areas of pulmonary infarcts. Histologic examination revealed fibrin deposition in the microvasculature compatible with DIC. Cases of pulmonary embolism with DIC have previously been reported, but this is the first case with pathologic confirmation. Thus, unusual presentation with diffuse lung shadow and DIC should not deter the clinician from correct diagnosis so that appropriate treatment can be promptly started.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
5/9. Hypertrophic osteoarthropathy, phalangeal and synovial metastases associated with bronchogenic carcinoma.A 61-year-old woman with bronchogenic carcinoma simultaneously developed hypertrophic osteoarthropathy (HOA), phalangeal metastases, and metastatic carcinoma of the synovium. The right knee synovium showed several blood vessels containing carcinomatous cells. Although the association of HOA phalangeal and synovial metastases in this case is likely a chance occurrence, awareness of this possibility is extremely valuable as it has important therapeutic implications.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
6/9. ultrasonography of adrenal masses: unusual manifestations.Forty patients with pathologically-proved adrenal masses, and two patients with extra-adrenal pheochromocytomas, were examined with gray scale B-scan. The authors describe unusual echo patterns of adrenal masses due to necrosis or hemorrhage, variations in the effects of large adrenal masses on surrounding organs and vessels, and the differential diagnosis. The complementary role of computed tomography is also discussed.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
7/9. Pulmonary arteriovenous fistula simulating a vanishing tumor.In a patient with an asymptomatic left upper lobe pulmonary arteriovenous fistula, preoperative chest roentgenograms simulated bronchogenic carcinoma, but no overt feeding vessel was demonstrated. Intraoperatively no lesion could be palpated. Postoperative evaluation revealed a pulmonary arteriovenous fistula. This entity should be considered in the differential diagnosis of single or multiple pulmonary nodules. Careful review of chest roentgenograms for feeding arteries, or draining veins, and observation under fluoroscopy for changing size will aid in diagnosis, and potentially avoid bronchoscopy and possible transbronchoscopic biopsy of these vascular lesions.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
8/9. vocal cord paralysis. association with superior mediastinal widening secondary to tortuosity of the great vessels.A 60-year-old man had left vocal cord paralysis and a superior mediastinal mass. Rather than the expected mediastinal tumor involving the recurrent laryngeal nerve, he was found to have tortuosity of the great vessels of the neck that caused the mediastinal widening. In all likelihood, this was unrelated to the vocal cord paralysis. The diagnosis was suspected and invasive studies avoided due to close scrutiny of the lateral chest roentgenogram.- - - - - - - - - - ranking = 5keywords = vessel (Clic here for more details about this article) |
9/9. indocyanine green videoangiographic findings in choroidal metastatic tumor.BACKGROUND: indocyanine green videoangiography (ICGV) has recently advanced and become widely available as a clinical tool. We tested the efficacy of ICGV in evaluating metastatic choroidal tumors. methods: ICGV using Topcon 50-IA was performed in five patients with clinically diagnosed choroidal metastatic tumors. The findings were compared with those of conventional fluorescein angiography (FAG). RESULTS: Compared with FAG, ICGV demonstrated more smooth and regular hypofluorescent lesions, precisely indicating the exact size of the tumor. In all cases, no tumor vessels were found. The choroidal vascular integrity around the tumors was observed. FAG, however, was more sensitive in detecting the tumor development than ICGV when the extent of the hypofluorescent lesion could be seen clearly in the early phase. FAG provided more information regarding retinal pigment epithelial dysfunction in the outer blood retinal barrier overlying the tumor. CONCLUSION: Since ICGV enables visualization of tumors through the retina, it is very useful, particularly in cases of associated secondary retinal detachment around the tumors. ICGV combined with FAG provides more precise assessment of the tumors themselves and their response to treatment than FAG alone.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |