title: Lesson of the month 2: A choroid plexus papilloma manifesting as anorexia nervosa in an adult.
abstract: A Caucasian female previously diagnosed with anorexia nervosa was referred by psychiatric services to the general medical team. She presented with dehydration, vomiting, weakness, a body mass index of 13 kg/m2and was treated with intravenous and enteral supplementation. During admission her vomiting worsened and she developed visual hallucinations and confabulation. Neurological examination demonstrated cerebellar signs and bilateral papilloedema on fundoscopy. Subsequent magnetic resonance imaging of the brain revealed a large fourth ventricular tumour causing obstructive hydrocephalus. The tumour was excised and histologically confirmed to be a choroid plexus papilloma. Postoperatively her neurological symptoms and negative feelings towards eating resolved.
authors.affiliation: Basildon University Hospital, Basildon, UK singh.prateush@gmail.com.
authors.forename: Prateush
authors.initials: P
authors.lastname: Singh
authors.affiliation: Basildon University Hospital, Basildon, UK.
authors.forename: Asim
authors.initials: A
authors.lastname: Khan
authors.affiliation: Basildon University Hospital, Basildon, UK.
authors.forename: Georgia
authors.initials: G
authors.lastname: Scott
authors.affiliation: Basildon Hospital, Basildon, UK.
authors.forename: Manuel
authors.initials: M
authors.lastname: Jasper
authors.affiliation: Basildon University Hospital, Basildon, UK.
authors.forename: Esha
authors.initials: E
authors.lastname: Singh
mesh_terms: D000328:Adult; D000856:Anorexia Nervosa / Q000209:etiology*; D001932:Brain Neoplasms; D005260:Female; D006801:Humans; D020288:Papilloma, Choroid Plexus
keywords: Anorexia nervosa; brain tumour; choroid plexus papilloma