Distribution of calcification within the pineal gland

Area of Science:

• Radiology
• Neuroanatomy
• Medical Imaging

Background:

• Pineal gland calcification is a common finding in adults.
• Radiographic assessment of pineal gland calcification is often used to determine midline shift.
• Understanding normal calcification distribution is crucial for accurate interpretation.

Purpose of the Study:

• To investigate the precise distribution of calcification within the normal human pineal gland.
• To correlate in vitro findings with established radiographic measurements for pineal gland calcification.

Main Methods:

• Macroradiographic technique was employed on 73 human pineal glands in vitro.
• The distance of the center of calcification from the gland's midline was measured.

Main Results:

• In 72 of 73 glands, calcification was located within 2 mm of the midline.
• One gland exhibited calcification 2.6 mm from the midline.

Conclusions:

• The study validates the standard radiographic limit of 2 mm from the midline for normal pineal calcification.
• Occasional measurements exceeding 2 mm can occur in normal subjects, consistent with these findings.