sing
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Q.
7y, female, generalized headache on and off for 1wk, fatigue, poor appetite. which tumore is most likely:
1. ALL
2. neuroblastoma
3. cerebellar astrocytoma
A&Y?
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ALL, as most common malignancy in this age gp
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| sing
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although ALL is most common. but since the symptom is headache, why not choose neuroblastoma? and does ALL mainly cause headache? :?:
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i am still not sure about this, more explanation required plz
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| sing
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hi, losergirl, your answer, ALL, is right as in nms, review for usmle step 2. but i am not so convinced is because usually ALL presents "fatigue, pallor, petechiae and bleeding, and fever." instead of "headache" (am i right?)
in this question, the main symptom is "head on and off for 1wk". and because neuroblastoma is the most common tumor of cns. so why not neuroblastoma?
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listen dude, neuroblastoma is malignancy of neural crest cells. Tumors may arise any where neural crest cells are present (adrenal glands, sympthetic ganglia). It represent 8% of all childhood tumors and is the most common solid malignancy in children OUTSIDE of the CNS. 70% are in abdomen, and half of these r in adrenal. the findings on PE depend on presentation of pt: e.g., abdominal mass that is hard, smooth n nontender, or thoracic tumor present with respiatory distress or detected accidently in post mediastinum, or as palapable head n neck tumors etc.
i hope this helps. Read neuroblastoma from kaplan pediatric notes if u got the book :|
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most common posterior fossa brain tumor of childhood: cerebellar astrocytoma
most common supratentorial tumor: craniopharngioma
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| sing
Forum Guru
Topics: 153
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thanks.
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