Subdural haematoma secondary to self-inflicted power drill injury

Case contributed by Dr Ian Bickle


Middle aged male with previous A & E attendance. Swelling on right vertex. Claims he drilled into his head with a power drill.

Patient Data

Age: 44
Gender: Male

Thin right sided subdural collection containing fluid and gas locules.

Sulcal effacement in the right cerebral hemisphere.

8mm uniform defect in the right frontal bone at the extreme vertex, which traverses both the outer and inner table of the skull.

Case Discussion

Remarkably the patient was telling the truth. He really did, without any analgesia, use a household electric power drill to drill through his skull (perhaps a DIY borehole?). He is believed to have a psychiatric illness.

The appearances suggest he used the 8mm drill-bit of the set. This has caused a subdural haematoma/collection with the introduction of a significant volume of air. The patient was transferred to a neurosurgical centre for further management.   

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Case information

rID: 35005
Case created: 19th Mar 2015
Last edited: 11th Sep 2015
Tag: rdgh
Inclusion in quiz mode: Included

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