A 3-year-old child has recurrent attacks of screaming, vomiting, and biting other children, these attacks lasts 2-5 minutes and occurs once or twice weekly, the child looks well between the attacks.

A 3-year-old child has recurrent attacks of screaming, vomiting, and biting other children, these attacks lasts 2-5 minutes and occurs once or twice weekly, the child looks well between the attacks.

Which of the following is MOST likely considered a risk factor for extraneural metastasis in primary brain tumors?

During a routine examination of a 10-mo-old male infant, you find a white pupillary reflex of the right eye; the eye movements are normal. You suspect retinoblastoma. Of the following, the BEST confirmatory diagnostic evaluation of this infant is

During the routine exam of an infant the parents state a 5th degree family history of adenomatous polyposis. The statement that should be included during the discussion is the infant is at increased risk of colonic adenocarcinoma

A 5-year-old child, recently diagnosed with ileocecal Burkitt lymphoma; lab investigations reveal: serum uric acid 12 mg/dl, serum sodium, 145 meq/dl; serum potassium, 4.5 meq/dl; serum phosphate 4.4 meq/dl; serum calcium, 8.9 mg/dl; blood urea, 22 mg/dl; serum creatinine, 0.8 mg/dl. Of the following, the MOST effective treatment is