This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
1 year old Rahul is brought with fever, fatigue, irritability, flushing, eating and bone pain. On examination a mass is palpable in the abdomen. What is he most likely suffering from? 
Select and explain. 
A. Neuroblastoma, B. Wilm's tumor, C. Lymphoma, D. ALL
A: Neuroblastoma
Answer: A: Neuroblastoma 
Explanation: Neuroblastoma is a malignancy arising from neural crest tissue of sympathetic ganglia or adrenal medulla. Flushing and sweating occur due to increased catecholamine secretion. Bone pain is due to metastasis. Reference: Current Diagnosis and Treatment: Paediatrics 20e chapter 29.