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Chapter 32. Tumors of the Paranasal Sinuses

What reconstructive option is indicated for a 3.5-cm defect of the cribriform plate with a high risk for CSF leak postoperatively?

A. Free mucosal graft from the middle turbinate

B. Nasoseptal flap

C. Temporoparietal flap

D. Pericranial flap

Physaliferous cells are associated with what histopathologic diagnosis?

A. Esthesioneuroblastoma

B. Clival chordoma

C. Adenocarcinoma

D. Soft tissue sarcoma

What radiographic finding is consistent with a juvenile angiofibroma?

A. Nasal mass extending into the nasopharynx

B. Expansion of infratemporal fossa with a solid mass

C. Nasal mass with associated expansion of the pterygopalatine fossa

D. Invasion of the orbital floor

Which tumor is most correlated with the immunohistochemical staining pattern of cytokeratin negative, chromogranin positive, and epithelial membrane antigen positive?

A. Esthesioneuroblastoma

B. Sinonasal neuroendocrine carcinoma

C. SNUC

D. SCC

Which of the following is a contraindication of expanded endoscopic skull base surgery?

A. Invasion of orbital contents

B. Invasion of the cribriform plate

C. Nasolacrimal duct involvement

D. Posterior wall invasion of the maxillary sinus

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