Hog s head cheese sign redirected from head cheese sign a term of art referring to a ct appearance in which there are mixed densities of lung parenchyma which has been fancifully likened to the appearance of the mixture of boiled pork scraps and pigs feet in a gelatinous base which is marketed as hog s head cheese. Ground glass opacities high attenuation. The diagnosis is mycoplasma pneumonia with associated bronchiolitis as indicated by the head cheese sign. It was considered pathognomonic for subacute hypersensitivity pneumonitis fig 15 b but more recently it has been described with other conditions such as sarcoidosis respiratory bronchiolitis and atypical infections eg mycoplasma pneumoniae. Exposure to an offending antigen characteristic signs and symptoms abnormal chest findings on physical examination.

The ground glass opacity is caused by an infiltrative process while the mosaic attenuation is caused by small airways obstruction usually associated with bronchiolitis. Its diagnosis relies on a constellation of findings. Developed by renowned radiologists in each specialty statdx provides comprehensive decision support you can rely on head cheese sign. The ct scan image bears close resemblance to the cut surface of a head cheese and hence the name. Head cheese sign combination of ground glass opacity and mosaic perfusion on chest ct seen in hypersensitivity pneumonitis dip sarcoid hockey stick ureter aka fishhooking j shaped appearance of distal ureter from enlargement of prostate and elevation of trigone usually in bph.

Your account has been temporarily locked due to incorrect sign in attempts and will be automatically unlocked in 30 mins. The head cheese sign refers to a juxtaposition of regions with three or sometimes more different densities regions of different attenuation within the lungs. Hypersensitivity pneumonitis hp also known as extrinsic allergic alveolitis eaa represents a group of pulmonary disorders mediated by an inflammatory reaction to inhalation of an allergen that can lead to lung fibrosis. Head cheese sign hilum convergence sign hilum overlay sign hogs head cheese sign incomplete border sign luftsichel sign thoracic imaging walking man sign water bottle sign. The head cheese sign refers to the combination of ground glass opacity with mosaic attenuation and resembles the disgusting end result of combining various parts of an animal s head and face into a cold cut.

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For immediate assistance contact customer service. For immediate assistance contact customer service. Your account has been temporarily locked due to incorrect sign in attempts and will be automatically unlocked in 30 mins. The ground glass opacity is caused by an infiltrative process while the mosaic attenuation is caused by small airways obstruction usually associated with bronchiolitis. Hog s head cheese sign redirected from head cheese sign a term of art referring to a ct appearance in which there are mixed densities of lung parenchyma which has been fancifully likened to the appearance of the mixture of boiled pork scraps and pigs feet in a gelatinous base which is marketed as hog s head cheese.