CT Characteristics of Primary Retroperitoneal Neoplasms
Amy Neville, Brian R. Herts · 1 Jan 2004
Primary retroperitoneal neoplasms account for only 0.1-0.2% of all malignancies. Retroperitoneal neoplasms are most commonly mesodermal, neurogenic or lymphatic in origin, with lymphoma, liposarcoma, leiomyosarcoma and malignant fibrous histiocytoma the vast majority of malignant primary retroperitoneal tumors. Although the radiographic features of retroperitoneal neoplasms often overlap, certain CT characteristics, pattern of spread and specific tumor…
CT Quantification of Pulmonary Emphysema: Assessment of Lung Structure and Function
Alexander A. Bankier, Afarine Madani, Pierre Alain Gevenois · 1 Jan 2002
Accurate diagnosis and quantification of pulmonary emphysema in vivo is important to understand the natural history of the disease, to assess the extent of the disease, and to evaluate and follow-up therapeutic interventions. Because pulmonary emphysema is defined by pathology, new diagnostic methods for quantification should be validated by reference to pathological and histological standards.…
Paranasal and Orbital Anatomy Revisited: Identification of the Ethmoid Arteries on Coronal CT Scans
Thaddaeus Gotwald, Andreas Menzler, Norman J. Beauchamp et al. · 1 Jan 2003
OBJECTIVE: The aim of this study was to identify recognizable landmarks on coronal CT (CCT) scans for the localization of the anterior and posterior ethmoid arteries, which are important anatomic structures and surgical landmarks within the ethmoid sinuses. MATERIALS AND METHODS: Four series of plastinated cadaver specimens and 80 CCT examinations were evaluated to identify…
Wegener's Granulomatosis: CT Evolution of Pulmonary Parenchymal Findings in Treated Disease
E. Scott Pretorius, John H. Stone, David B. Hellman et al. · 1 Jan 2004
Objective: To determine the computed tomography (CT) evolution of various pulmonary manifestations of Wegener's Granulomatosis (WG) following appropriate pharmacologic treatment of the disease. Methods: Eleven patients with WG were identified, each of whom had had at least two CT examinations. CTs were reviewed retrospectively to identify pulmonary lesions of WG. Lesions were categorized as nodules,…
Imaging Neuroblastoma in Children
Kamini Mehta, Jack O. Haller, Alan C. Legasto · 1 Jan 2003
Neuroblastoma is a common solid tumor of childhood that can involve the abdomen, thorax, pelvis, or the head and neck. The clinical manifestations are dependent on the widespread distribution of neural crest tissue and the length of the sympathetic chain involvement. Abdominal pain and hypertension may occur as a result of renal vasculature compression; respiratory…
