Pediatric Tumors

see video link in second post

[size=20px]A 6 year old girl 👧 has isosexual precocious puberty manifested by tall stature, breast development, and genital maturation. Ultrasonography of pelvis shows a 6cm mass in the left ovary. The most likely diagnosis is: A Androblastoma B Ovarian teratoma C Granulosa-theca cell tumor D Sertoli- Leydig cell tumor E Dysgerminoma[/size]

[size=20px]Following total thyroidectomy for recurrence of papillary carcinoma, determination of which of the following levels is prognostically useful for follow-up in children: A Thyroid-stimulating hormone TSH B Calcitonin C N-ras gN-ras D Thyroglobulin E p21 ras protien[/size]

[size=20px]Five years after treatment for leukemia, a teenager presents with increasing, painless right parotid swelling. A magnetic resonance imaging study (MRI) confirms the presence of a parotid mass and fine needle aspiration is non-diagnostic. The next best step in management of a patient with a parotid mass and history of leukemia is A follow-up exam in three months. B warm compresses and oral antibiotics. C sialogram. D panendoscopy. E parotidectomy.[/size] First one with correct answer with justification win.