Temporal artery biopsy in a dermatologic surgery practice

BACKGROUND. A positive temporal artery biopsy (TAB) is essential to the dia gnosis of temporal arteritis. Both this relatively common disease and its p rolonged treatment with corticosteroids are associated with serious sequela e. Therefore, accurate and timely diagnosis is critical. The dermatologic s urgery literature lacks a description of this straightforward surgical tech nique, as TABs are most often performed by ophthalmologists. OBJECTIVE. AS a service to our rheumatology department we began performing TABs on a same-day on-call basis in July 1996. METHODS. We have performed 45 TABs in a 22-month period using a simple, saf e, time-efficient technique. We review the surgical anatomy and danger zone of the temporal region and potential complications. We describe the biopsy technique which aims at safely obtaining a greater than 2 cm segment of a peripheral branch of the superficial temporal artery (STA), identified preo peratively by doppler ultrasonography. RESULTS. The procedure was performed on the day requested in all cases. Int raoperative time ranged from 20 to 40 minutes. TAB established the diagnosi s of temporal arteritis in 8 of 44 biopsies (18%) and in 7 of 35 patients ( 20%), including 1 of 9 patients in whom we performed bilateral TAB. One pat ient was diagnosed with small-vessel polyarteritis nodosa by TAB. The mean formalin-fixed length of the arterial specimen was 2.2 cm. The length did n ot vary between positive and negative specimens. There were no complication s and the cosmetic results were excellent. CONCLUSION. TAB is a quick, safe, straightforward, and gratifying office pr ocedure which dermatologic surgeons are very qualified to perform.