Scaling
Abnormal shedding or accumulation of an upper layer of skin (the stratum corneum).
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- Scalp ringworm
A superficial fungus infection of the skin, affecting the scalp. Also known as ringworm. It appears as scalp scaling associated with bald spots (in contrast to seborrhea or dandruff, for instance, which do not cause hair loss). It occurs most commonly in children, especially those in late childhood and adolescence, and can spread in schools. […]
- Scan
As a noun, the data or image obtained from the examination of organs or regions of the body by gathering information with a sensing device. For specific scans, please see their alphabetical listings (such as Bone scan, CAT scan, Spiral CAT scan, Nuchal fold scan, and Thyroid scan).
- Scan, bone
A technique to create images of bones on a computer screen or on film. A small amount of radioactive material is injected and travels through the bloodstream. It collects in the bones, especially in abnormal areas of the bones, and is detected by special instrument called a scanner. The image of the bones is recorded […]
- Scan, CAT
Pictures of structures within the body created by a computer that takes the data from multiple X-ray images and turns them in pictures. The CAT (computerized axial tomography) scan can reveal some soft-tissue and other structures that cannot be seen in conventional X-rays. Using the same dosage of radiation as that of an ordinary X-ray […]
- Scan, computerized axial tomography
Pictures of structures within the body created by a computer that takes the data from multiple X-ray images and turns them in pictures. The CAT (computerized axial tomography) scan can reveal some soft-tissue and other structures that cannot be seen in conventional X-rays. Using the same dosage of radiation as that of an ordinary X-ray […]