2. A 6-month-old infant presents with a parotid gland mass that appears vascular on imaging. The mass is excised and histopathology reveals a well-circumscribed lesion with prominent blood vessels and no malignant features. What is the most likely diagnosis?

5. An 80-year-old male presents with a rapidly growing parotid mass and facial nerve palsy. Histology shows a tumor resembling comedo duct carcinoma of the breast with necrosis and high-grade features. What is the most likely diagnosis?

6. A 45-year-old woman has a parotid gland tumor with molecular analysis. The results show various gene fusions. Which of the following molecular alterations is incorrectly matched to the tumor?

7. A 18-year old fair skinned, read headed boy was found to have a lesion in the posterior wall of the roof of nasal cavity. Histopathological image is shown. Which of the following is true regarding this lesion?

8. A 45-year-old male presents with a painless ulcerative lesion on the lateral border of the tongue that has been progressively enlarging over the last 6 months. He is a non-smoker but has a history of moderate alcohol consumption. He denies any significant family history of cancer. On physical examination, there is a 1.5 cm exophytic lesion with a rolled border and a white keratotic surface. Cervical lymph nodes are palpable on the ipsilateral side.

10. A 35-year-old man presents with a 6-month history of nasal obstruction, frequent nosebleeds, and occasional headaches. He also reports a diminished sense of smell. On examination, there is a large mass in the superior nasal cavity. A CT scan of the head shows a large, enhancing mass occupying the nasal cavity with extension into the ethmoid sinuses and erosion of the cribriform plate. A biopsy of the mass is performed, and histological analysis reveals small, round blue cells arranged in lobules with neurofibrillary stroma. Immunohistochemistry is positive for synaptophysin and chromogranin, and the tumor exhibits Homer-Wright rosettes.