To recognize the radiological appearances of various foreign bodies. To be aware of the complications of foreign bodies, especially if not recognized and treated promptly.

Corpus alienum or foreign body, refers to any object or piece of extraneous matter that enters the body. This can be accidental or deliberate, and can be ingested, inserted through a natural body orifice or introduced through a wound in the skin or mucous membrane. We are all familiar with the shocking cases of large and impressive foreign bodies some patients manage to acquire. Impalings with metal posts, nail gun accidents and stabbings with swords can be found in the news reports and on the...

This poster gives examples of the large to very small foreign bodies, and the radiological signs that assist in making a rapid diagnosis of these potentially life threatening “corpora aliena”. Examples are also included of complications that can occur if these objects are not rapidly removed. Inhaled and Ingested Foreign Bodies 1. Inhaled radiolucent objects with air trapping The large majority of inhaled foreign bodies are radiolucent, and not able to be seen on chest x-ray. Items such as peanuts, corn kernels, diced vegetables such...

The recognition and identification of foreign bodies by the radiologist is very important, and can be life-saving if clinically unsuspected.

Dr Sarah Constantine MBBS, FRANZCR Consultant Radiologist The Queen Elizabeth Hospital The Women's and Children's Hospital South Australia. Dr James Buckley MB BCh, FRCR, FRANZCR Consultant Radiologist Royal Adelaide Hospital South Australia.

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