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Glite Dictionary
supratentorial lesion

supratentorial lesion

9.3
A damaged or growing area in the top part of the brain that can cause seizures and problems with thinking
  • noun
  • /ˌsuːprəˈtɛnˌtɔːriəl ˈliːʒən/
  • Specialized
translation icon : lesión supratentorial
  • The MRI revealed a supratentorial lesion in the left parietal lobe.

Examples

  • Patients with a supratentorial lesion may present with seizures or cognitive changes.

  • The location of a supratentorial lesion can affect the treatment approach and prognosis.

  • The MRI revealed a supratentorial lesion in the left hemisphere.

  • Doctors often diagnose supratentorial lesions through imaging.

  • The MRI revealed a supratentorial lesion in the left parietal lobe.

  • Patients with a supratentorial lesion may present with seizures or cognitive changes.

  • The location of a supratentorial lesion can affect the treatment approach and prognosis.

Surface Forms

supratentorial lesion singular
supratentorial lesions plural

Morphology

supratentorial + lesion

The phrase is morphologically compositional: 'supratentorial' decomposes into supra- (above) + tentorial (relating to the tentorium), so combined with 'lesion' a learner who knows the constituents can derive 'a lesion located above the tentorium'. However, the term is technical and requires anatomical knowledge (what the tentorium is and its relation to brain regions), so the meaning is only partially predictable and specialized despite the clear morphological structure.

Etymology

Supratentorial lesion comes from a simple image: the part supra means 'above' and tentorium was named for a thin 'tent-like' layer inside the skull that sits over the lower brain. So a supratentorial lesion is a damaged area 'above the tent' in the upper part of the brain, and that's why doctors use the term for a tumor or injury there that can affect thinking or cause seizures.