Computed tomography
Bilateral hematomas may lead to medial compression of both ventricles resulting in a narrow, slit-like elongated ventricle (the anterior horns sharply pointed and approaching one another so called ‘squeezed ventricle,’ ‘hare’s ears sign, or ‘rabbit’s ears’) 1) 2) 3) 4).
Magnetic resonance imaging
Magnetic resonance imaging is a more sensitive modality.
1)
Marcu H, Becker H. Computed-tomography of bilateral isodense chronic subdural hematomas. Neuroradiology. 1977;14:81–3.
2)
Ellis GL. Subdural haematoma in the elderly. Emerg Med Clin North Am. 1990;8:281–94.
3)
Karasawa H, Tomita S, Suzuki S. Chronic subdural haematomas: Time density curve and iodine concentrations in enhanced CT. Neuroradiology. 1987;29:36–9.
4)
Kim KS, Hemmati M, Weinberg P. Computed tomography in isodense subdural haematoma. Radiology. 1978;128:71–4.