Coin
Coin (medicine)
Coin (/koʊn/), in the context of medicine, refers to a round or oval opacification seen on a chest radiograph or an axial image through the chest at computed tomography (CT). The term is derived from the Latin word cuneus, meaning wedge.
Etymology
The term coin in medical parlance is derived from the Latin word cuneus, which means wedge. The term was first used in this context in the early 20th century, when radiologists began to describe certain types of lung abnormalities seen on chest radiographs as resembling coins.
Related Terms
- Coin lesion: A coin lesion is a spot on a lung X-ray that appears as a coin due to its round or oval shape. It is often a sign of a benign or malignant lung tumor.
- Coin test: A coin test is a clinical examination method used to detect the presence of pleural effusion or pneumothorax.
- Coin sign: The coin sign is a radiological sign seen in bronchogenic carcinoma where the lesion appears round or oval, similar to a coin, on a chest radiograph.
See Also
External links
- Medical encyclopedia article on Coin
- Wikipedia's article - Coin
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