Pap smears after BMT show a high incidence of dysplastic lesions. Moreover, conditioning including busulfan is often associated with therapy-related cytologic atypia, which may lead to unnecessary colposcopies and biopsies. Knowledge of the patient's history and a careful evaluation of the smears are mandatory in these cases.
We present a previously unreported case of isolated oculomotor nerve palsy as the inaugural clinical sign of meningeal carcinomatosis (MC). Gadolinium-enhanced magnetic resonance images (MRI) were unremarkable. Cerebrospinal fluid (CSF) analysis showed malignant cells consistent with a pulmonary adenocarcinoma; the chest CT revealed a small pulmonary mass in the upper right lobe. This case highlights the importance of considering MC in all patients who develop sudden oculomotor palsy; lumbar punctures should always be performed on patients with normal MRI when other possible causes of oculomotor palsy have been ruled out.
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