Clinico-genetic aspects of a pediatric non-neurofibromatosis type 1 malignant triton tumor with loss of chromosome X


Autoria(s): Engel, Edgard Eduard; Brassesco, Maria Sol; Valera, Elvis Terci; Nogueira-Barbosa, Marcello Henrique; de Almeida Santos Yamashita, Mauricio Eiji; Scrideli, Carlos Alberto; Tone, Luiz Gonzaga
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

12/09/2013

12/09/2013

2012

Resumo

Malignant triton tumor (MTT) is an aggressive peripheral nerve sheath tumor with rhabdomyoblastic differentiation. Less than 100 cases have been described, being mostly male children with type 1 neurofibromatosis. We report a 6-year-old female with MTT and no diagnostic criteria for neurofibromatosis type 1. Cytogenetic analysis showed a 46,X,-X[4]/46,XX[16] karyotype. She underwent a transfemoral amputation and chemotherapy and is free of disease 15 months after diagnosis. The few cytogenetic studies of MTT described in the literature have been inconclusive. Further cytogenetic analyses are needed to understand the role of chromosome X monosomy in the pathogenesis of this rare tumor. Pediatr Blood Cancer 2012; 59: 13201323. (C) 2012 Wiley Periodicals, Inc.

FAPESP (proc.) [2010/15717-0, 2010/16652-9]

FAPESP (proc.)

Identificador

PEDIATRIC BLOOD & CANCER, SAN FRANCISCO, v. 59, n. 7, supl. 1, Part 3, pp. 1320-1323, DEC, 2012

1545-5009

http://www.producao.usp.br/handle/BDPI/33283

10.1002/pbc.24197

http://dx.doi.org/10.1002/pbc.24197

Idioma(s)

eng

Publicador

WILEY PERIODICALS, INC

SAN FRANCISCO

Relação

PEDIATRIC BLOOD & CANCER

Direitos

closedAccess

Copyright WILEY PERIODICALS, INC

Palavras-Chave #CYTOGENETICS #MALIGNANT PERIPHERAL NERVE SHEATH TUMOR #MALIGNANT TRITON TUMOR #NEUROFIBROMATOSIS-1 #RHABDOMYOBLAST #NERVE SHEATH TUMOR #RHABDOMYOBLASTIC DIFFERENTIATION #GENE #ONCOLOGY #HEMATOLOGY #PEDIATRICS
Tipo

article

original article

publishedVersion