Pathology dictionary -
Lesion is a word pathologists use to describe any abnormal cells or tissues. Some lesions can be seen without the aid of a microscope while others can only be seen after the tissue is examined under the microscope.
Common types of lesions include:
Tumours (non-cancerous and cancerous).
Lesion is a general description and not a diagnosis. Your pathology report will provide more information about the lesion which will allow your doctors to determine the cause.