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fungus ball |
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ball (bawl) a more or less spherical mass. See also globus and sphere.
fungus ball a tumorlike granulomatous mass formed by colonization of a fungus, usually Aspergillus, in a body cavity.
Fungus Ball A tumour-like mass of fungi, classically from the saprobic form of Aspergillus spp, which colonises a preexisting pulmonary cavity DiffDx—Radiology Abcesses, ankylosing spondylitis, congenital lung cysts, cystic bronchiectasis, emphysematous bullae, cavitary histoplasmosis, neoplasia, radiation fibrosis, sarcoidosis, AIDS Management Surgical excision of large lesions carries a 5–10% intraoperative mortality rate and a 25–35% complication rate, but, without surgery, potentially fatal haemoptysis occurs in 50–83% ball [bawl] fungus ball a tumorlike granulomatous mass formed by colonization of a fungus in a body cavity, usually a bronchus or pulmonary cavity but occasionally a nasal cavity; the organism may disseminate through the bloodstream to the brain, heart, and kidneys. The most common type is the aspergilloma.
ball a more or less spherical mass. See also bolus. fungus ball
aspergilloma. fungus ball Aspergilloma, mycetoma A tumor-like mass of fungi, classically from the saprobic form of Aspergillus spp, which colonizes a preexisting pulmonary cavity Radiology A solid rounded mass within a cavity, rimmed by an
'air density' crescent; surgical excision of large lesions carries a 5-10% intraoperative mortality rate and a 25-35% complication rate, but sans surgery, potentially fatal hemoptysis occurs in 50-83% DiffDx-radiology Abcesses,
ankylosing spondylitis, congenital lung cysts, cystic bronchiectasis, emphysematous bullae, cavitary histoplasmosis, neoplasia, radiation fibrosis, sarcoidosis, and AIDS Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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Fungus balls (eg, mycetomas, and urobezoars) can extend down the ureter as casts within the collecting system (seen as the "cat's tail sign"), and this can result in mechanical obstruction. 2,6) A diagnosis of mycetoma should be considered when computed tomography (CT) demonstrates a focal mass or diffuse area of increased radiodensity and magnetic resonance imaging (MRI) shows a correlating marked decrease in intensity on T1- and T2-weighted imaging, making the fungus ball "invisible" as it blends with the adjacent air of the sinus. THE distinctive white fungus ball is found in meadows, pastures and undergrowth, most commonly between July and November: rare examples have been recorded at 4ft in diameter. |
fungus ball |
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