Search results
Results from the WOW.Com Content Network
The shadows that accompany the ribs may mimic pleural and lung disease. [2] Scapular companion shadow overlie the scapula, with a smooth, well-defined margin parallel to the medial border of the scapula. The companion shadow results from unusual radiographic position of the scapula, which causes a soft-tissue fold to occur along its medial border.
A lung nodule or pulmonary nodule is a relatively small focal density in the lung. A solitary pulmonary nodule (SPN) or coin lesion, [1] is a mass in the lung smaller than three centimeters in diameter. A pulmonary micronodule has a diameter of less than three millimetres. [2] There may also be multiple nodules.
A lung nodule is a discrete opacity in the lung which may be caused by: Neoplasm: benign or malignant; Granuloma: tuberculosis; Infection: round pneumonia; Vascular: infarct, varix, granulomatosis with polyangiitis, rheumatoid arthritis; There are a number of features that are helpful in suggesting the diagnosis: rate of growth
This finding is most commonly associated with hematogenous metastases, where malignant cells spread to the lungs via the bloodstream, forming discrete nodules that resemble cannonballs. [2] The term "cannonball" reflects the large, rounded appearance of these lesions, often evident on chest radiographs or CT scans.
A fossa (from the Latin "fossa", ditch or trench) is a depression or hollow, usually in a bone, such as the hypophyseal fossa, the depression in the sphenoid bone. [15] A meatus is a short canal that opens to another part of the body. [16] An example is the external auditory meatus. A fovea (Latin: pit) is a small pit, usually on the head of a ...
MIP enhances the 3D nature of these nodules, making them stand out from pulmonary bronchi and vasculature. MIP imaging is also used routinely by physicians in interpreting Positron Emission Tomography (PET) or Magnetic Resonance Angiography studies.
3. Nodule with poorly defined margins - Round density within the lung parenchyma, also called a tuberculoma. Nodules included in this category are those with margins that are indistinct or poorly defined (tree-in-bud sign [3]). The surrounding haziness can be either subtle or readily apparent and suggests coexisting airspace consolidation.
In anatomy, a fossa (/ ˈ f ɒ s ə /; [1] [2] pl.: fossae (/ ˈ f ɒ s iː / or / ˈ f ɒ s aɪ /); from Latin 'ditch, trench') is a depression or hollow, usually in a bone, such as the hypophyseal fossa (the depression in the sphenoid bone). [3]