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Extracranial vertebral artery aneurysm is uncommon, and the common cause is penetrating trauma. Rupture of extracranial vertebral artery aneurysm into the thoracic cavity is extremely rare and fatal due to haemorrhagic shock by massive haemothorax. We report an intrathoracic rupture of the extracranial vertebral artery aneurysm with neurofibromatosis Type 1, successfully treated by coil and liquid embolisation. [ABSTRACT FROM AUTHOR]

Abstract   We have performed torsional oscillator and ultrasonic measurements for 4He confined in 2D nano-porous substrate, hectorite. For 4He films, the resonance frequency of the torsional oscillator increases rapidly just below a superfluid transition temperature (T C ), and then becomes constant at the lower temperature. In contrast, the sound velocity below T C increases monotonically with decreasing temperature. For liquid 4He the sound velocity has a small bend at T b of about 0.9 K. Its increase below T b is enhanced as the pressure is increased. [ABSTRACT FROM AUTHOR]