![Mireille Bitar, M.D. on X: "The #pinealgland is a forgotten endocrine organ. Look for pinealocytes with cytoplasmic granules (melatonin and its precursor serotonin) and calcifications (corpora *arenacea; Latin for sand) #neuropath #brainautopsy # Mireille Bitar, M.D. on X: "The #pinealgland is a forgotten endocrine organ. Look for pinealocytes with cytoplasmic granules (melatonin and its precursor serotonin) and calcifications (corpora *arenacea; Latin for sand) #neuropath #brainautopsy #](https://pbs.twimg.com/media/FIckEhWWUAIu4kJ.jpg:large)
Mireille Bitar, M.D. on X: "The #pinealgland is a forgotten endocrine organ. Look for pinealocytes with cytoplasmic granules (melatonin and its precursor serotonin) and calcifications (corpora *arenacea; Latin for sand) #neuropath #brainautopsy #
![Light micrograph of calcium concretions (corpora arenacea, brain sand) in the habenular commissure, the commissural region adjacent to the root of the Stock Photo - Alamy Light micrograph of calcium concretions (corpora arenacea, brain sand) in the habenular commissure, the commissural region adjacent to the root of the Stock Photo - Alamy](https://c8.alamy.com/comp/2ADC83Y/light-micrograph-of-calcium-concretions-corpora-arenacea-brain-sand-in-the-habenular-commissure-the-commissural-region-adjacent-to-the-root-of-the-2ADC83Y.jpg)
Light micrograph of calcium concretions (corpora arenacea, brain sand) in the habenular commissure, the commissural region adjacent to the root of the Stock Photo - Alamy
![PDF] MODIFIED LENDRUM'S TECHNIQUE TO DEMONSTRATE METACHROMASIA OF BRAIN SAND IN PINEAL GLAND | Semantic Scholar PDF] MODIFIED LENDRUM'S TECHNIQUE TO DEMONSTRATE METACHROMASIA OF BRAIN SAND IN PINEAL GLAND | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/ff494f70b7427b714f30bf758808192e6927d40b/2-Figure1-1.png)