title: Pseudopseudotumor of the lung. Hepatic herniation into the right major fissure imitating a pseudotumor on chest roentgenogram.
abstract: A young man presented to us with an asymptomatic ovoid mass which appeared to be in the right major fissure. The roentgenographic appearance of the lesion was that of a pseudotumor. The computerized tomography scan suggested tissue density leading to exploration. At surgery, we found the mass to be a portion of liver herniated through a diaphragmatic defect. Thus, we add type 2 hepatic herniation to congestive heart failure, empyema, hemothorax, postinflammatory "fibromas" and malignancies as a cause of interlobar pleural densities.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006547:Hernia / Q000000981:diagnostic imaging*; D006548:Hernia, Diaphragmatic / Q000000981:diagnostic imaging*; D006801:Humans; D008107:Liver Diseases / Q000000981:diagnostic imaging*; D008168:Lung / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D010996:Pleural Effusion / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed