Category: S

  • Scintillascope

    An instrument which produces a scintigram. The instrument used to produce a scintigram. It incorporates a scintillator, a device to magnify the fluorescence produced in it by radiations, and a means of recording the results, often aided by a computer.  

  • Scintigram

    An image recording radiation from radioactive isotopes injected into the body. Nuclear image known as a 3f scintigraphy x-ray. A diagram showing the distribution of radioactive tracer in a part of the body, produced by recording the flashes of light given off by a scintillator as it is struck by radiation of different intensities. By…

  • Scientist

    A person who specialises in scientific studies.  

  • Scientific

    Referring to science.  

  • Schwartze’s operation

    The original surgical operation to drain fluid and remove infected tissue from the mastoid process [After Hermann Schwartze (1837-1910), German otologist]. A surgical procedure on the mastoid that retains the external auditory canal (ear opening).  

  • Schwannoma

    A neurofibroma, a benign tumour of a peripheral nerve. A benign tumor of the neurilemma of a nerve. A neoplasm originating from the cells comprising the protective myelin sheath enveloping numerous nerve cells. A growth originating from the protective covering of a nerve.  

  • Schwann cells

    The cells which form the myelin sheath around a nerve fibre. Cells that lay down the myelin sheath around the axon of certain nerve fibers. A structure of the peripheral nervous system that forms the myelin sheath and neurilemma of a nerve fiber. The cells that lay down the myelin sheath around the axon of…

  • School

    School

    A place where children are taught. A specialised section of a university. An institution for education, including (for students of different ages) preschool, elementary school, middle school, high school, and college or university.  

  • Schlemm’s canal

    A circular canal in the sclera of the eye, which drains the aqueous humour [Described 1830. After Friedrich Schlemm (1795-1858), Professor of Anatomy in Berlin, Germany.] A channel in the eye, at the junction of the cornea and the sclera, through which the aqueous humor drains.  

  • Schlatter’s disease

    Inflammation in the bones and cartilage at the top of the tibia [Described 1903. After Carl Schlatter (1864-1934), Professor of Surgery at Zurich, Switzerland.]