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Table 2 Abnormalities found in CDS of the temporal arteries in patients with clinically suspected GCA and control subjects

From: Colour duplex sonography of temporal arteries before decision for biopsy: a prospective study in 55 patients with suspected giant cell arteritis

Final diagnoses (n)

Presence of halo (bilateral)

Blood-flow abnormalities

GCA (22)

18 (9)

9

Polymyalgia rheumatica (12)

0

4

Neoplasms (8)

0

2

Infections (10)

2 (0)

1

Wegener's granulomatosis (1)

1 (0)

1

Behçet's disease (1)

0

0

Polyarteritis nodosa (1)

0

1

Controls (age-/gender-matched)

  

Healthy (15)

0

5

Diabetes mellitus and/or stroke (15)

0

6

  1. CDS, colour duplex ultrasonography; GCA, giant cell arteritis.