Adrenocortical tumor (ACT), a rare tumor with a heterogeneous presentation, incompletely
understood pathogenesis, and generally poor prognosis, occurs in 1–2 people per million …

Rare cancers account for about 22 per cent of all cancers diagnosed worldwide,
disproportionately affecting some demographic groups, with an occurrence of less than 6 …

Introduction Contemporary state-of-the-art management of cancer is increasingly defined by
individualized treatment strategies. For very rare tumors, like hepatoblastoma, the …

This study analyses survival in 40,392 children (age 0–14 years) and 30,187
adolescents/young adults (age 15–24 years) diagnosed with cancer between 1995 and …

Although all tumours are rare in childhood, there are some particularly rare paediatric
cancers which have not benefited from advances made by the international paediatric …

BACKGROUND: Colorectal cancer is exceedingly rare in children and adolescents. Reports
from small series indicate that poor prognostic factors are more common in children than in …

The merger of the Pediatric Oncology Group, Children's Cancer Group, the Intergroup
Rhabdomyosarcoma Study Group, and the National Wilms Tumor Study Group in 2000 …

Background. Salivary gland carcinomas are rare malignancies, particularly in young
individuals in whom only scanty data are available from published studies. Methods. We …

BACKGROUND: Pancreatoblastoma is a very rare malignant tumour typically occurring in
the early years of life. Due to its rarity, standardised diagnostic and therapeutic guidelines …

Introduction Malignant pancreatic tumors are exceedingly rare in pediatric age and their
clinical features and treatment usually go unappreciated by most pediatric oncologists and …