[Neonatal melanoma arising in a giant congenital nevus]. / Mélanome néonatal sur naevus géant congénital.

INTRODUCTION: Malignant melanoma arising in giant congenital nevus is a well known but rare event. CASE REPORT: A 15 day-old boy with giant congenital nevus all over the left leg was seen for a 6 mm red and bleeding nodule inside the nevus on the inner thigh. Histopathology showed spindle cell malignant melanoma. A 3 cm edge surgical excision was performed with a favorable outcome which persists 5 years later. DISCUSSION: The diagnosis of malignant melanoma is always very difficult in a child, unless metastasis occurs. Histopathologic modifications of childhood malignant melanomas are discussed. Development of malignant melanoma in giant congenital nevus would not appear to exceed 5 p. 100. Nevertheless, early surgical excision is recommended because the nevus is smaller and skin mobilization is easier at this age.

[Medical treatment of arm embolisms]. / Traitement médical des embolies du membre supérieur.

Emboli in the upper limb occur much less often than in other territories. They usually cause subacute ischaemia due to the importance of the arterial anastomotic network. Medical treatment is thus often sufficient. An analysis of the data in the literature show that medical treatment can give results comparable to surgery. Medical management should only be proposed as a complementary treatment when acute sensitivomotor acute ischaemia threatens the upper limb since priority must be placed on immediate restoration of the arterial flow.