Table 2.
Classification of histological specimens with vasculitis from the San Juan de Dios Hospital, Bogotá, Colombia, 1953 – 1997, according to the scheme of Lie [27]
| Vasculitis diagnosis |
Number N = 304 |
Frequencies per 100,000 histological specimens |
Percentages | |
| groups of vasculitis | subgroups of vasculitis | |||
| I. Primary vasculitis | 142 | 74 | 46.7 | |
| A. Affecting large, medium and small sized blood vessels | 1 | 0.6 | 0.7 | |
| 1. Giant cell (Temporal) arteritis | 1 | 0.6 | ||
| B. Affecting predominantly medium and small-sized blood vessels | 29 | 17.5 | 20.4 | |
| 1. Polyarteritis nodosa | 24 | 14.5 | ||
| 2. Churg-Strauss syndrome | 2 | 1.2 | ||
| 3. Wegener's granulomatosis | 3 | 1.8 | ||
| C. Affecting predominantly small-sized blood vessels | 74 | 44.7 | 52.1 | |
| 1. Microscopic polyangiitis | 1 | 0.6 | ||
| 2. Henoch-Schönlein purpura | 9 | 5.4 | ||
| 3. Cutaneous leukocytoclastic angiitis | 64 | 38.7 | ||
| D. Miscellaneous conditions | 38 | 23 | 26.8 | |
| 1. Buerger's disease | 38 | 23 | ||
| II. Secondary vasculitides | 55 | 33.2 | 18.1 | |
| 1. Infection-related vasculitis | 20 | 12.1 | ||
| 2. Connective tissue disease vasculitis | 33 | 20 | ||
| 3. Hypocomplementemic urticarial vasculitis | 1 | 0.6 | ||
| 4. Vasculitis associated with neoplasia | 1 | 0.6 | ||
| III. Unclassified vasculitis | 107 | 64.6 | 35.2 | |
| Total | 304 | 183.6 | 100 | |