[Vasculitis associated with connectivitis].

A great number of vasculitis in childhood is associated with Rheumatic disease. Vascular lesions involve small vessels of various organs. These are described in systemic lupus erythematosus, juvenile rheumatoid arthritis, dermatomyositis, scleroderma, mixed connective tissue disease, Behçet syndrome, Sjögren syndrome.

[Granulomatous angiitis].

Granulomatous angiitis are characterized by histologic feature of intravascular and extravascular formation of granulomas in association with necrotizing vasculitis of medium and small arteries. They are rare in childhood. The Churg-Strauss syndrome is associated with marked eosinophilia and asthma.

[Polyarteritis].

Polyarteritis is an uncommon childhood disease. The different forms of polyarteritis are described. Polyarteritis nodosa is a rare multisystemic disease characterized by high fever, calf pain and subcutaneous nodules.

[Giant cell arteritis].

Giant cell arteritis are characterized by histologic disruption features of the lamina elastica of large arteries with mononuclear cells and giant cells infiltration. Systemic giant cell arteritis, temporal arteritis and Takayasu's arteritis are included in this group. Takayasu's arteritis predominantly affects the teenage girl and involves the aorta and its mayor branches.