Comparison of computed and conventional whole lung tomography in detecting pulmonary nodules: a prospective radiologic-pathologic study. AJR 1978; 131:51-54.
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Adolescent↗
Biomedical subjects
Marvin H Chasen
Publications and source records attributed to Marvin H Chasen.
Argon beam coagulator electrode tip mimicking a metallic foreign body.
OBJECTIVE: Our purpose is to describe the appearance of an argon beam coagulator electrode tip that may become fractured and detached during surgery. CONCLUSION: Knowledge of the potential for fracture and detachment and recognition of the characteristic radiographic appearance of the argon beam coagulator electrode tip allows radiographic identification of this metallic foreign body.
Adult↗
Anatomy of pericardial recesses on multidetector CT: implications for oncologic imaging.
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Adult↗
Pericardial "sleeve" recess of right inferior pulmonary vein mimicking adenopathy: computed tomography findings.
OBJECTIVE: The purpose of this study was to assess the computed tomography (CT) features of the pericardial "sleeve" recess of the right inferior pulmonary vein misinterpreted as adenopathy. METHOD: Six patients with fluid in the pericardial sleeve recess mistaken for adenopathy were retrospectively identified. The following CT features were assessed: location of fluid in relation to the vein, size, shape, attenuation, and mass effect on the inferior pulmonary vein. RESULTS: The most common presentation was fluid inferior and posterior to the vein. The anterior and posterior components are typically spindle shaped, whereas the superior and inferior components are ovoid. The attenuation values of the fluid ranged from 2-32 H (mean = 13 H). None of the fluid collections exerted mass effect on the right inferior pulmonary vein. CONCLUSION: Although fluid in the right pulmonary venous sleeve pericardial recess can mimic adenopathy, this accumulation has a characteristic appearance, and knowledge of this normal variant is useful in preventing misinterpretation.
Aged↗
Primary thoracic sarcomas.
Primary sarcomas of the thorax are rare. The diagnosis is established only after sarcomalike primary lung malignancies and metastatic disease have been excluded. Primary sarcomas of the thorax are classified according to their histologic features and constitute a large group of tumors that occur in the lung, mediastinum, pleura, and chest wall. Angiosarcoma, leiomyosarcoma, rhabdomyosarcoma, and mesothelioma (sarcomatoid variant) are the most common primary intrathoracic sarcomas. Ewing sarcoma, primitive neuroectodermal tumor, chondrosarcoma, malignant fibrous histiocytoma, osteosarcoma, synovial sarcoma, and fibrosarcoma usually arise in the chest wall. Although primary thoracic sarcomas commonly manifest as large, heterogeneous masses, they have a wide spectrum of radiologic manifestations, including solitary pulmonary nodules, central endobronchial tumors, and intraluminal masses within the pulmonary arteries. The different histologic types of sarcomas are frequently indistinguishable at radiologic analysis. However, differences in clinical presentation and the location of the tumor, as well as morphologic features such as calcification within the mass and rib involvement, can be useful in suggesting the appropriate diagnosis. For example, a large rib mass in a child with fever and malaise indicates a Ewing sarcoma, a mass with a calcified matrix is likely a chondrosarcoma or osteosarcoma, and a pulmonary artery mass is likely a leiomyosarcoma.
Adult↗