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Inflammatory conditions

A biopsy of the temporal arteries is often performed for suspected vasculitis.In inflammatory bowel disease (Crohn's disease and ulcerative colitis), frequent biopsies are taken to assess the activity of the disease and to assess changes that precede malignancy.

Biopsy specimens are often taken from part of a lesion when the cause of a disease is uncertain or its extent or exact character is in doubt. Vasculitis, for instance, is usually diagnosed on biopsy.