You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Mrs. Neena noted an abdominal mass in It side of her 6 mth. old child. Which showed calcification near the left kidney. what will be the cause - and explain in detail?
Ans. is 'b' ie. Neuroblastoma Neuroblastoma is the most common solid tumor of infancy and childhood* and 3/4 of pt present with an abdominal mass. Plain x-ray shows fine, stippled calicification in 50 percent of the cases. More about Neuroblastoma Neuroblastoma is malignant tumor of neural crest origin*, arising from the sympathetic nervous tissue from the orbit to the pelvis. Age - It occurs chiefly in very young children median age is 2 years. It is the most common solid tumor of infancy and most common tumor in newborn. * MC intrabdominal tumor in children. M.C. site is -----Adrenal medulla* 90% of pts. have increased catecholamine* secretion which can be identified by increased urinary levels of metanephrine and vanillylmandelic acid. Clinical evidence of catecholamine excess is however rare. Excessive VIP secretion presents with Hypokalemic watery diarrhoea* syndrome. Hematogenous metastasis occurs very early. Orbital metastasis* may present with proptosis, periorbital ecchymosis.