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  • Title: [Congenital solid tumors. A thirteen-year review].
    Author: Albert A, Cruz O, Montaner A, Vela A, Badosa J, Castañón M, Morales L.
    Journal: Cir Pediatr; 2004 Jul; 17(3):133-6. PubMed ID: 15503950.
    Abstract:
    UNLABELLED: Tumors diagnosed during the first month of life are infrequent: 0.5 to 2% of all childhood neoplasms. This is an interesting group of tumors because their type, relative incidence, natural history and response to treatment differ from those seen in older children. AIM: To contribute the experience of our institution in congenital tumors the last 13 years. MATERIAL AND METHODS: The records of all neonates (< 31 days old) diagnosed with solid tumors since January 1990 to December 2002 have been retrospectively reviewed. RESULTS: Twenty-seven neonates have been diagnosed with tumors in the last 13 years. Thirteen patients (48%) were prenatally diagnosed. Nine babies were diagnosed at the initial neonatal exam (40% of those diagnosedd after birth). Neuroblastoma was the commonest tumor (10 cases, 37%), of which 4 were stage I, 4 stage IV-S and 2 stage III. There were 8 teratomas (3 sacrocoxigeal, 1 retroperitoneal, 1 in the CNS, 1 orbitary and two oronasal), two hepatic tumors (1 hepatoblastoma, 1 hemangioendothelioma, two CNS tumors, two giant nevus (one on a hamartoma), and one each Wilms tumor, infantile fibrosarcoma and myofibroblastic tumor. Treatment was surgical resection alone in 17 cases (68%) and surgery + chemotherapy in 8 (32%) (5 neuroblastomas, one CNS tumor, one Wilms tumor and one presacral teratoma who developed a yolk sac tumor); 3 patients died (11%): one at surgery, one of tumoural airway obstruction at birth and one with craniopharyngioma. Among the 14 tumors that were initially not malignant, two can be locally agressive, one was an immature teratoma, the giant nevus with hamartoma developed in situ melanoma, the other nevus had meningeal melanosis with hydrocephalus, and one mature presacral teratoma developed a yolk sac tumor. CONCLUSIONS: Diagnosis of congenital tumors is performed earlier in recent years due to the wide use of prenatal ultrasound. Their natural history is more benign than in other age groups, except for CNS tumors and very large or obstructing tumors. The histological patern is not determinant of the outcome. Complete surgical excision is the treatment of choice, most cases not need adjuvant chemotherapy. We ought to pass this message on to our colleagues in prenatal diagnosis, so parents get reliable information.
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