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Radiology Quiz Case 2: Diagnosis
Arch Otolaryngol Head Neck Surg. 2009;135(7):719.
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Diagnosis: Metastasis from NSCLC in both IACs
The patient's dizziness, tinnitus, and hearing loss worsened, and she developed an extreme headache. Lumbar puncture showed cytologic evidence of leptomeningeal metastasis of NSCLC. We conclude, based on the clinical history of a proven stage IV NSCLC, the evidence of leptomeningeal metastasis, and the aspect of the lesions in both IACs, that metastasis in both IACs caused the patient's symptoms. Whole-brain radiotherapy (5 sessions of 4 Gy) and dexamethasone therapy (12 mg/d) were initiated. Gradually, the patient's condition worsened, and because of her unfavorable prognosis, no further diagnostic or therapeutic actions were undertaken. Palliative sedation was administered, and the patient died 1 week later.
Dysfunction of the eighth cranial nerve is often the result of lesions in the CPA and the IAC. Vestibular schwannomas represent 80% to 90% of all benign tumors, followed by meningiomas (5%-10%), lipomas, epidermoid cysts, hemangiomas, and cholesteatomas.1 Metastases in the IAC are rare, representing only . . . [Full Text of this Article]
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Radiology Quiz Case 2
Rick van de Langenberg, Robert Stokroos, and Bert-Jan de Bondt
Arch Otolaryngol Head Neck Surg. 2009;135(7):717.
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