The Brain Collection Contents
Below you will find key facts about the collection
Fact Sheet
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A total of 9,479 brains – some are missing due to various circumstances.
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The collection contains approximately 50,000 tissue blocks embedded in paraffin (FFPE blocks), i.e. all the blocks originally made for diagnostics.
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Histological slide trays from approximately 6500 patients are preserved, i.e. approximately 250,000 slides.
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The brains are collected from Danish psychiatric patients between 1945-1982. The most frequent diagnoses among the patients are dementia, schizophrenia, mania, and depression.
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All brains have been autopsied and sectioned accordingly; consequently, there are no whole brains in the collection. The tissue is stored as sections.
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All tissue is either preserved in formalin or embedded in paraffin.
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There are no brains from people without disease (control brains).
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There are no fresh frozen tissue.
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There is no service for ordering tissue for shipping – all projects are collaborations where scientists visit the brain collection and dissect relevant areas of the brains for their project.
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Patient data such as age, date of death, and clinical diagnoses are available for each brain.
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All information regarding the patients and tissue is written on paper in Danish and often in handwriting. This includes the medical records, pathology reports, responsum/summary and the associated protocol books.
- The medical records are mainly stored in the Danish National Archive with limited accessibility.
Distribution of Diagnoses

OBS: Based on preliminary numbers.
Age Distribution of Patients

The majority of the examined patients died old — some after living a long life at a psychiatric hospital.
This plot was calculated to give an impression of the age of potential next of kin alive today.
Available Brain Regions for FFPE Blocks
| Region | Number of Brains |
|---|---|
| Amygdala | 268 |
| Centrum semiovale | 71 |
| Central region | 318 |
| Cerebellum | 3340 |
| Chiasma opticum | 57 |
| Corpus callosum | 5 |
| Corpus geniculatum laterale | 1 |
| Corpus pineale | 21 |
| Corpus striatum | 9132 |
| Cortex calcarinus | 32 |
| Cuneus | 16 |
| Gyrus cinguli | 17 |
| Gyrus frontalis inferior | 15 |
| Gyrus frontalis medius | 29 |
| Gyrus frontalis superior | 322 |
| Gyrus orbitalis | 47 |
| Gyrus rectus | 11 |
| Gyrus temporalis inferior | 18 |
| Gyrus temporalis medius | 24 |
| Gyrus temporalis superior | 29 |
| Hippocampus | 9200 |
| Hypothalamus | 482 |
| Insula | 123 |
| Lobulus parietalis inferior | 1 |
| Lobulus parietalis superior | 11 |
| Lobus frontalis | 40 |
| Lobus occipitalis | 33 |
| Lobus parietalis | 33 |
| Lobus temporalis | 28 |
| Medulla oblongata | 47 |
| Mesencephalon | 6915 |
| Metathalamus | 1 |
| Nucleus caudatus | 42 |
| Nucleus dentatus | 28 |
| Nucleus lentiformis | 25 |
| Operculum parietale | 2 |
| Operculum temporale | 14 |
| Pituitary gland | 5 |
| Plexus choroideus | 12 |
| Polus frontalis | 6096 |
| Polus occipitalis | 1123 |
| Polus temporalis | 1177 |
| Pons | 2242 |
| Putamen | 57 |
| Subthalamus | 19 |
| Thalamus | 329 |
| Vermis cerebelli | 17 |