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  • This tube, known as a portacath lies entirely under the skin. The line enters the subclavian vein just below the clavicle. At the 'drum' end there is a membrane (asterisk) to allow delivery of drugs via a needle.
  • These lines are used for delivery of long term antibiotics, in conditions such as cystic fibrosis.
  • Note the underlying lungs are abnormal with a coarse, reticular (net-like) shadowing, and parallel 'tram-lines,' indicating bronchiectasis, a typical feature of cystic fibrosis - the diagnosis in this case.

Page author: Salisbury NHS Foundation Trust UK (Read bio)

Last reviewed: October 2019