title: [4S neuroblastoma with bilateral adrenal tumors].
abstract: 4S neuroblastoma with bilateral adrenal involvement is defined by small primitive tumors (stage 1 or 2) with disseminated disease restricted to the liver, skin, and/or bone marrow. Children are less than one year old. These tumors are rare and of multicentric origin.
  
  
  METHODS
  Our multicentric study analyzed four children less than four months old at diagnosis.
  
  
  RESULTS
  All had a favourable histology, with normal MYC-N copy number, and one case had a diploid tumor. The four patients had first supportive care at the beginning, but three cases received chemotherapy because of progressive disease, with liver radiotherapy in two cases because of massive hepatomegaly; three cases had surgery (unilateral adrenal resection in two cases and bilateral in one case) and one had only a biopsy. Surgery was the only treatment in one case. One patient relapsed 17 months after initial treatment and was treated with intensive chemotherapy and stem cell rescue. The outcome is favorable for the four patients, without evidence of recurrent disease.
  
  
  CONCLUSIONS
  Children with 4S neuroblastoma with bilateral adrenal tumors have a good prognosis. Treatment should be the less aggressive as possible. The group with favorable prognostic parameters should have supportive care if spontaneous regression occurs. But we have to treat with chemotherapy neonates with massive hepatomegaly and children with one or more unfavorable prognostic factors (unfavorable histology, high MYC-N copy number).
authors.affiliation: Service d'hématologie-oncologie pédiatrique, hôpital d'enfants Armand-Trousseau, Assistance Publique-Hôpitaux de Paris, 26, avenue du Docteur-A-Netter, 75012 Paris, France. c.kerdudo@free.fr
authors.forename: C
authors.initials: C
authors.lastname: Kerdudo
authors.forename: N
authors.initials: N
authors.lastname: Corradini
authors.forename: J
authors.initials: J
authors.lastname: Michon
authors.forename: G
authors.initials: G
authors.lastname: Leverger
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000473:pathology / Q000601:surgery*; D000328:Adult; D001706:Biopsy; D003131:Combined Modality Therapy; D004171:Diploidy; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009367:Neoplasm Staging; D016609:Neoplasms, Second Primary / Q000473:pathology / Q000601:surgery*; D009447:Neuroblastoma / Q000628:therapy*; D016896:Treatment Outcome