Skin in maturity: the endocrine and neuroendocrine pathways.

Irrespective of age, most of the skin components are under the physiological control of endocrine and neuroendocrine factors. There is evidence that skin ageing appears complex showing much interindividual variability. Conceptually, ageing is a single biological process that is influenced and modulated by a series of various internal and exogenous factors.

[Bacterial sexually transmitted diseases].

The sexually transmitted diseases (STD) correspond to bacterial, viral, mycotic and parasitic disorders. They are present worldwide. However, their incidences and prevalences are higher and their complications are more severe in the intertropical belt.

[Cutaneous-lymph node Kikuchi-Fujimoto disease].

Introduction: The subacute necrotizing histiocytic lymphadenitis was reported for the first time in 1972 in Japan by Kikuchi and by Fujimoto and his colleagues. This idiopathic disease can affect the skin. We report a case of Kikuchi-Fujimoto disease with skin and lymph node involvement.