[Wilms' tumor: a series of 79 cases (author's transl)]

79 cases of Wilms' tumor with age at diagnosis between 0 and eight years, are reported. 76 of them are evaluable for therapeutic results. 54 (71%) are alive and disease-free, with a mean survival of 53 months. Group A (35 patients) received pre-surgical treatment with radiotherapy and the survival rate is 77%. Group B (32 patients) were not treated before surgery and the survival rate is 84%. Both groups received post-surgical treatment with radiotherapy and chemotherapy (vincristine and actinomycin D). Patients in group C, chronologically the oldest, did not receive chemotherapy and its survival rate was 20%. Prognostical significance of age, sex, site, clinical stage and histology are examined. Classical concepts on histological classifications are revised and present criteria are shown, along with its' therapeutic and prognostic implications.

[Bone lymphangiomatosis (author's transl)]

A case of lymphangiomatosis of bone in a 12-years old boy is presented. First bone lessions were seen at 6 1/2 years of age and the case had a progressive course. The only associated lymphatic malformation was a submandibular lymphangioma. The lymphography performed at the patient was normal. Literature about this subject is revised and evolutive possibilities and therapy are described.