Kernel

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Kernel (medicine)

Kernel (pronounced: /ˈkɜːrnl/) is a term used in various fields of medicine to describe a small, central part of a structure or organ. The term is derived from the Old English cyrenel, meaning 'little seed', which in turn is derived from cyrn, meaning 'seed' or 'kernel'.

In Neurology, a kernel refers to a central part of the brain, such as the caudate nucleus or lentiform nucleus, which are part of the basal ganglia.

In Dermatology, a kernel can refer to a small, hard, abnormal lump or mass in the skin, such as a sebaceous cyst or lipoma.

In Oncology, the term kernel is sometimes used to describe the central part of a tumor, which may be more resistant to treatment than the outer parts.

In Radiology, a kernel is a mathematical function used in image processing, particularly in the reconstruction of computed tomography (CT) and MRI images.

Related terms include nucleus, which in a biological context refers to the central part of a cell, and core, which can refer to the central part of a muscle or organ.

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