. Author manuscript; available in PMC: 2017 Oct 23.

Published in final edited form as: Mod Pathol. 2017 Mar 3;30(6):788–796. doi: 10.1038/modpathol.2017.10

Table 4. Character and Grade of Medial Inflammation in Biopsies.

	Initial Biopsy	Second Biopsy
Inflammatory Pattern	(n=40)	(n=24)
Granulomatous	37 (93%)	14 (58%)
Non-granulomatous	3 (7%)	10 (42%)
Inflammatory Cell Type	(n=40)	(n=24)
Lymphocytes	40 (100%)	24 (100%)
Plasma cells	33 (83%)	10 (40%)
Giant cells	22 (55%)	11 (45%)
Eosinophils	7(18%)	1 (4%)
Neutrophils	1 (3%)	0 (0%)
Inflammation Grade^*	(n=40)	(n=40)
0	0	16
1	3	3
2	1	4
3	36	17

n=number of cases

0=no medial inflammation; 1 = inflammation limited to the internal elastic membrane; 2 = inflammation beyond internal elastic membrane, but <50% of medial thickness; 3 = inflammation ≥50% of medial thickness.