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Related Experiment Video

Updated: Nov 9, 2025

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Published on: June 18, 2021

Symmetrical Interhemispheric Subdural Hematoma.

Naohiro Uchio¹, Ryoji Miyano¹, Hideyuki Matsumoto¹

¹Department of Neurology, Mitsui Memorial Hospital, Tokyo, JPN.

|April 7, 2021

Summary

This summary is machine-generated.

Interhemispheric subdural hematoma (ISDH) is a rare brain bleed. This case highlights that symmetrical CT findings can indicate ISDH, even when initially overlooked, and conservative treatment can be effective.

Keywords:

falx cerebri hemodialysis interhemispheric subdural hematoma

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Last Updated: Nov 9, 2025

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Published on: June 18, 2021

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

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Published on: December 18, 2016

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Published on: August 30, 2020

Area of Science:

Neurology
Radiology
Neurosurgery

Background:

Interhemispheric subdural hematoma (ISDH) is an uncommon type of subdural hematoma.
Prompt diagnosis is crucial for effective management of intracranial hemorrhages.

Observation:

An 81-year-old woman on hemodialysis presented with acute nausea and vomiting.
Brain CT revealed bilateral symmetrical thickening and increased density of the falx cerebri.

Findings:

The CT findings were initially overlooked but later identified as an acute ISDH.
The patient experienced complete symptom resolution with conservative management.

Implications:

Symmetrical findings on brain CT scans should raise suspicion for ISDH.
Conservative treatment may be a viable option for acute ISDH, even in elderly patients.