• **Temporal artery biopsy**

The gold standard for diagnosis of giant cell arteritis is Temporal artery biopsy (TAB). 10–20% of GCA can be biopsy negative, however a negative result does not rule out the condition [1–5]. The findings on temporal artery biopsy in GCA is characterized by inflammatory infiltration of the arterial wall by lymphocytes, macrophages and giant cells in about 50% of cases [1–5].
