Related Experiment Video
Updated: Oct 14, 2025

07:09
Preparation and Application of a New Bacterial Biosensor for the Presumptive Detection of Gunshot Residue
Published on: May 9, 2019
8.2K
Migrating Souvenir Bullet: The Management Dilemma
Srikant Kumar Swain1, Rajnish Kumar Arora1, Radhe Shyam Mittal1
1Department of Neurosurgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Annals of Neurosciences
|November 4, 2021
Summary
A retained bullet in the head after gunshot trauma can be managed conservatively if asymptomatic. Long-term monitoring is advised for potential complications like bullet migration or abscess formation.
Area of Science:
- Neurosurgery
- Trauma Surgery
Background:
- Cranio-cerebral trauma from gunshot injuries has high mortality.
- Deciding on retained missile removal presents a clinical dilemma for physicians.
Observation:
- A 21-year-old man sustained a forehead injury from a bullet.
- Initial imaging revealed a retained bullet in the left parieto-occipital region without significant hemorrhage or neurological deficit.
Findings:
- Conservative management was initiated due to the absence of neurological deficits.
- Over 28 months, the bullet migrated to the right temporal region without causing symptoms.
Implications:
- Asymptomatic patients with retained intracranial bullets may be managed conservatively.
- Long-term follow-up is crucial to monitor for delayed complications such as bullet migration, hydrocephalus, or abscess formation.
Related Concept Videos
Conservation of Momentum: Problem Solving
11.0K
Solving problems using the conservation of momentum requires four basic steps:
11.0K
Migration
8.1K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
8.1K
Force and Momentum
16.8K
Force and momentum are intimately related. Force acting over time can change momentum, and Newton's second law of motion can be stated in its most broadly applicable form in terms of momentum. Momentum can be applied to systems where the mass is changing, such as rockets, as well as to systems of constant mass. Also, momentum continues to be a key concept in the study of atomic and subatomic particles in quantum mechanics. One can consider systems with varying mass in some detail; however,...
16.8K
Mismatch Repair
5.4K
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
5.4K
Projectile Motion: Example
11.6K
The theory of projectile motion is very useful for players of several sports to improve their performance. For example, a javelin thrower needs to throw their javelin in such a way that it travels as far as possible. The javelin thrower takes a short run-up to increase the initial speed of the javelin. The range of a projectile is at its maximum at a 45° angle so javelin throwers try to angle their throw as close to 45° as possible.
When we speak of the range (R) of a projectile on...
When we speak of the range (R) of a projectile on...
11.6K

