The dangers of recreational inhalation of nitrous oxide.

Nitrous oxide, also known as 'laughing gas', is one of the most widely used recreational drugs among teenagers in the UK. Copious inhalation of nitrous oxide may increase intra-alveolar pressure, resulting in barotrauma secondary to alveolar rupture. Pneumomediastinum and subcutaneous emphysema are common clinical findings in nitrous oxide-associated barotrauma.

Internal jugular vein duplication: clinical significance for head and neck cancer ablative and reconstructive surgery.

We present the case of a 75-year-old patient with a T2N0Mo oral cancer, who underwent surgery for cancer ablation and reconstruction. Intraoperatively, a duplicate internal jugular vein (IJV) was identified. Both segments were preserved.

Ultrasound assessment in distal biceps tendon injuries: Techniques, pearls and pitfalls.

Ultrasound assessment of the distal biceps tendon is challenging. The tendon has two components which are continuations of the long and short heads of the muscle, and these undergo 90° of rotation along their course. The tendon has a deep insertion to the radial tuberosity.

Imaging of ulnar-sided wrist pain.

Ulnar-sided wrist pain is a complex entity to diagnose clinically and frequently requires imaging to help confirm or determine the diagnosis. This article reviews the imaging and the logical imaging pathway of the common causes of ulnar-sided wrist pain, and illustrates various pathologies. It also discusses appropriate imaging modalities for various conditions.