Which of the following statements about neuroblastoma is not true - (AIPG 2011)
|A||Most common extracranial solid tumor in childhood|
|B||> 50 oZ present with metastasis at the time of diagnosis|
|C||Lung metastasis are common|
|D||Often encase aorta and its branches at the time of diagnosis|
Lung metastasis are common
a. Neuroblastorna is most common extracranial solid tumor of children.
b. Lung metastasis is rare in neuroblastonra.
c. Metastasis present in 60-70% of children, at the time of diagnosis, and the most frequent site of metastasis is system. Other common sites are llymph nodes und skin.
d. Encasement of abdominal aorta and inferior venacava by tumor is common.