A 3-year-old boy is found to have spontaneous bursts of non-rhythmic conjugate eye movements in various directions, as well as hypotonia and myoclonus. Physical examination also reveals an abdominal mass. A CT scan shows a mass in the adrenal gland. Which of the following statements is false regarding the patient's condition?
AImmunohistochemical detection of chromogranin is not useful for diagnosis.
B70-80% of tumors are associated with elevated production of catecholamines.
CRearrangement or deletion of short arm of chromosome 1 is seen in 25-35% of cases.
DThe most common site of tumor is adrenal medulla.
A renal mass seen on prenatal check-up is most probably:
ANeuroblastoma
BWilms' tumor
CMesoblastic nephroma
DRenal sarcoma
Opsoclonus-myoclonus is a phenomenon seen in:
AWilms' tumor
BMeningioma
CCortical tuberculoma
DNeuroblastoma
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