Opaque hemithorax in a young adult.

Opaque hemithorax in a young adult.

Opaque hemithorax

Complete opacification of a hemithorax on chest X-ray is termed opaque hemithorax (OH) and is a common finding in emergency room patients. Attending physicians encountering an OH should be able to make an immediate decision regarding the most appropriate approach. The differential diagnosis of an OH is primarily based on the volume of the affected hemithorax, as determined by the position of th...

A 54-year-old man with right opaque hemithorax and worsening shortness of breath.

impaired/dull note was appreciated on the right side of the chest. The skin over the right hemithorax was warm and hard to touch. On abdominal examination, there was massive, palpable hepatomegaly which was tender. The remaining examination was unremarkable. Chest X-ray ( fig. 1 ) disclosed an almost complete opacification of the right hemithorax with the mediastinal silhouette being slightly d...

A Young Adult with Myoclonic Seizure

A 21-year-old man was referred to dermatology clinic for skin biopsy. He presented to neurology center with behavioral changes with cognition and memory disorders. He had two episodes of genealized tonic clonic seizure and series of myoclonc jerks in his limbs and face especially after awakening since several months ago. In neurological examination, he had mini mental score as 13; with so...

Gravity bias in young and adult chimpanzees (Pan troglodytes): tests with a modified opaque-tubes task.

Young human children at around 2 years of age fail to predict the correct location of an object when it is dropped from the top of an S-shape opaque tube. They search in the location just below the releasing point (Hood, 1995). This type of error, called a 'gravity bias', has recently been reported in dogs and monkeys. In the present study, we investigated whether young and adult chimpanzees al...