Abstract
The [human] breast can be examined by transillumination with white light. The tissues transmit more light in the red and infrared part of the spectrum than in the blue. Images of the breast are normally recorded on color infrared film. An alternative to photography is the use of a television camera sensitive to the near infrared, which can demonstrate lesions on a monitor in real time. The limitations of the type of light torch used in recent investigations are examined and a new version which should permit detection and imaging of smaller lesions is described.

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