Titlebook: Metaphorical Signs in Computed Tomography of Chest and Abdomen; Andrey Yudin Book 2023Latest edition The Editor(s) (if applicable) and The

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Swiss Cheese Appearance and Head Cheese Sign, emphysematous destruction, which retain the air density. On computed tomography, in such cases, the areas of consolidation and ground glass appear nonuniformly “perforated” (↑), containing many cavities and forming images similar to Swiss cheese (e.g., Emmenthal or Gruyère). The predominance of emp

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Feeding Vessel Sign or Fruits on the Branch Sign,g directly to a nodule or a mass (↑). Computed tomography permits visualization of the relationship of small pulmonary vessels with focal pathological changes. Meziane et al. noted that this feature suggests a hematogenous origin of the process [1] and includes primarily metastases, infarcts, and se

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Miliary Dissemination, Snowstorm Sign, and Cannonball Metastases,n the lung parenchyma. Random dissemination is usually caused by hematogenous spread of pathological processes, among which tuberculosis, fungal infection, and metastases should be confirmed or excluded first. The causes of dissemination in the lungs cannot be enumerated (more than 200). The snowsto

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Sandstorm Sign, Black Pleural Line, and Stony Lung Signs,fications are the deposition of calcium phosphate microliths (called calciferites) on the inner surface of the alveoli. Both lungs are involved in the pathological process, the changes are most pronounced in the middle and lower parts of the lungs. On CT scans, small lesions may have a soft tissue d

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Pseudocavitations and Cheerios Sign or Puncher Sign,the release of a large amount of energy, which is accompanied by noise and hydraulic shocks. Kuhlman et al. described pseudocavitations against the background of consolidation (↑) caused by adenocarcinoma as several small oval areas of low density, mimicking tiny cavities [1]. Pseudocavitations on c

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Halo Sign,first described by Kuhlman et al. in 1985 [1] as a sign of hemorrhage around foci of invasive pulmonary aspergillosis. The halo sign is nonspecific and can be caused by various pathologic processes: hemorrhagic pulmonary nodules, both infectious and non-infectious, proliferation of tumor cells into

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Metaphorical Signs in Computed Tomography of Chest and Abdomen

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Metaphorical Signs in Computed Tomography of Chest and Abdomen978-3-031-24494-0

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Consolidation, Bulging Fissure Sign or Lobar Consolidation and Air Bronchograms Sign or Open Bronchd in pneumonia of the upper lobe of the right lung caused . [1]. Other possible causative agents of inflammation: ., ., ., ., .. Similar changes can be caused by pulmonary adenocarcinoma, abscess, and hemorrhage.