[Acute necrotizing esophagitis in an unstable patient].

Acute necrotizing esophagitis or black esophagus is a rare affection, described in the medical literature since 1990. Although its mechanism is not fully understood, ischemic compromise appears to be the fundamental physiopathological factor. When acute necrotizing esophagitis is found in the endoscopic study of an upper digestive haemorrhage, the prognosis is good.

[Systemic mastocytosis with skin manifestation versus indolent mastocytosis].

We have analyzed the clinical, analytical, radiologic, therapeutic an evolutive of cases of systemic mastocytosis (SM) skin lesions. The diagnostic of MS is difficult in the absence of skin lesions.