Pineal region mass

Dr Henry Knipe and Assoc Prof Frank Gaillard et al.

Masses in the pineal region have a relatively broad differential because of the variety of cell types found in the region.

If large enough, the mass may compress the tectal plate and may cause a defect in up-gaze (Parinaud syndrome) or obstructive hydrocephalus, if the cerebral aqueduct is compressed.

Intrinsic pineal tissue masses also tend to cause upward displacement of the internal cerebral veins. This is in distinction to tentorial meningiomas which depress the cerebral veins.

Differential diagnosis

If invasive, a tectal plate mass may be difficult to distinguish from a pineal mass.

Pineal region masses

The pineal region is anatomically complex and plays host to a number of unique masses and tumors as well as potentially affected by many entities seen more frequently elsewhere in the brain. 

General reading


Article information

rID: 1882
Synonyms or Alternate Spellings:
  • Pineal tumours
  • Pineal masses
  • Pineal mass
  • Pineal tumour
  • Pineal tumor
  • Pineal tumors

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Cases and figures

  • Case 1: pineocytoma
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  • Case 2: pineal germ cell tumor
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  • Case 3: pineal cavernoma - gradient echo
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  • Case 4: pineal germinoma - T1 + Gad
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  • Case 5: pineal germinoma - CT
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  • Case 6: pineal region meningioma
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  • Case 7: pineal region epidermoid
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