title: CNS listeriosis confused with leptomeningeal carcinomatosis in a patient with a malignant insulinoma.
abstract: We describe a case of presumed listeria monocytogenes rhomboencephalitis, which was initially confused with leptomeningeal carcinomatosis in a patient with a malignant carcinoid tumor. Long-term corticosteroid treatment and immunosuppression caused by malignancy predisposed the patient to developing listeriosis. The clinical and radiologic features of this illustrative case are described. Listeriosis is an important treatable differential diagnosis in patients with malignancy presenting with neurologic signs.
authors.affiliation: Department of Haematology and Medical Oncology, Peter MacCallum Cancer Institute, Melbourne, Australia.
authors.forename: Linda
authors.initials: L
authors.lastname: Mileshkin
authors.forename: Michael
authors.initials: M
authors.lastname: Michael
authors.forename: Mary
authors.initials: M
authors.lastname: O'Reilly
authors.forename: Allan
authors.initials: A
authors.lastname: McKenzie
authors.forename: Richard
authors.initials: R
authors.lastname: Stark
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000175:diagnosis*; D002494:Central Nervous System Infections / Q000150:complications / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007340:Insulinoma / Q000150:complications*; D008088:Listeriosis / Q000150:complications / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008303:Malignant Carcinoid Syndrome / Q000150:complications*; D008577:Meningeal Neoplasms / Q000175:diagnosis*; D012640:Seizures / Q000209:etiology