Metastatic Crohn's disease: a review.

Metastatic Crohn's disease (MCD) indicates the presence of non-caseating granuloma of the skin at sites separated from the gastrointestinal tract by normal tissue and is the least common dermatologic manifestation of CD. In adults, MCD usually appears after the initial diagnosis of CD in 70% of cases, whereas in children, it appears at the same time as CD in almost half of the cases. The most frequent skin lesions in adults are nodules, plaques with or without ulceration on the extremities and ulcers on the genitals.

Adult purpura fulminans associated with staphylococcal infection and administration of colony-stimulating factors.

Purpura fulminans (PF) is a rare syndrome of progressive haemorragic necrosis due to disseminated intravascular coagulation (DIC) and dermal vascular thrombosis leading to purpura and tissue necrosis. PF is more often associated with either a benign infection or a severe sepsis. Rarely, it has been related to drug intake.

[Disseminated pigmented nevus syndrome].

Two patients carriers of a neuro-cutaneous syndrome showing scattered pigmentary nevus and neurologic disorders are exposed, who are added to three similar cases presented in a previous publication. Differences with other syndromes that show cafe-au-lait spots, like those of Recklinghausen and Albright, and also of other known publications, are remarked. Ultrastructural studies are contributed.