910 likes | 1.3k Views
Introduction. collagen vascular diseases, autoimmune diseasesknowledge of immune systemdifficult to diagnosenonspecific symptomstend to overlapcommon histiologic featureinflammatory damage CT and blood vessels fibrinoid material deposition. Immune System. lymphoid stem cellB-cellT-cellmacrophage or monocyteNK cells.
E N D