Table 4

Distribution of cases with vascular wall changes

Vascular wall changes47/120 (39.2%)
Necrosis
 Grade 10/9
 Grade 213/40 (32.5%)
 Grade 309/21 (42.8%)
 Grade 425/53 (47.1%)
Histiocytes sheets
 <1 mm19/35 (54.2%)
 1–2 mm17/39 (43.5%)
 >2 mm11/37 (29.7%)
Granuloma
 Absent34/102 (33.3%)
 Present13/18 (72.2%)
Particle load
 0+09/17 (52.9%)
 1+11/29 (37.9%)
 2+18/47 (38.2%)
 3+07/19 (36.8%)
 4+02/08 (25%)
Plasma cells
 Absent23/75 (30.6%)
 Present24/45 (53.3%)
Germinal centre
 Absent20/80 (25%)
 Present27/40 (67.5%)
Lymphocyte cuff thickness
 <0.25 mm19/59 (32.2%)
 0.25–0.5 mm15/27 (55.5%)
 0.5–0.75 mm06/8 (75%)
 >0.75 mm07/9 (77.7%)
ALVAL in skeletal muscle
 Absent37/104 (35.5%)
 Present10/16 (62.5%)
  • ALVAL, aseptic lymphocytic vasculitis associated lesion.