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Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains

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Frontotemporal dementia: an unusual cause.

Abhishek Pathak¹, Rameshwar Nath Chaurasia¹, Abhai Kumar¹

¹Department of Neurology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India.

The International Journal of Neuroscience

|December 10, 2019

Summary

This study reports a rare case of frontotemporal dementia caused by intracerebral pneumocephalus, secondary to an ethmoid osteoid osteoma. This unique presentation highlights an unusual cause of dementia.

Keywords:

Ethmoid Osteoma Mount-Fuji Sign Pneumocephalus

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Area of Science:

Neurology
Neurosurgery
Otolaryngology

Background:

Intracerebral pneumocephalus typically results from head trauma, infections, or surgery.
Osteomas, benign tumors often found in paranasal sinuses, can be associated with pneumocephalus, particularly frontal osteomas.

Observation:

A patient presented with behavioral changes and forgetfulness, exhibiting features of frontotemporal dementia.
Brain MRI revealed bilateral frontal lobe pneumocephalus, and CT cisternography identified an ethmoid sinus osteoid osteoma.

Findings:

This case represents an uncommon association of pneumocephalus with an isolated frontotemporal dementia presentation.
Radiological features suggested an osteoid osteoma, a rare cause of pneumocephalus and dementia.

Implications:

This case underscores the importance of considering rare etiologies, like osteoid osteomas, in the differential diagnosis of frontotemporal dementia.
The unique presentation of pneumocephalus secondary to an ethmoid osteoid osteoma leading to dementia warrants further investigation into this rare neurological phenomenon.