[Autoinflammatory syndromes: inborn errors of natural immunity].

The notion of autoinflammatory diseases delineates a heterogenous group of genetic pathologies characterized by spontaneous periodic systemic inflammation in the absence of infectious or autoimmune causes. The general hypothesis is that the innate immune response in these patients is wrongly tuned, being either too sensitive to minor stimuli or turned off too late. Clinical pictures of these disorders are characterized by high spiking fever associated with involvement of musculo-skeletal system, tegumentary apparatus and serosas.

Thrombocytosis in systemic lupus erythematosus: a possible clue to autosplenectomy?

Objective: Thrombocytosis can be due to a myeloproliferative disorder or to a reactive or secondary process; among these are connective tissue disorders, in particular systemic lupus erythematosus (SLE). Besides being an expression of active disease, this unusual finding has also been described in SLE complicated by autosplenectomy. We evaluated the prevalence of thrombocytosis in a series of SLE patients and its relationship to functional asplenia.