title: A case of idiopathic hypertrophic cranial pachymeningitis manifested only by positive rheumatoid factor and abnormal findings of the anterior falx.
abstract: In this report, we present a rare case of a 52-year-old man with a unique form of hypertrophic pachymeningitis involving the anterior part of the falx and who was positive for rheumatoid factor. The clinical symptom was only headache, without any cranial nerve palsies or ataxia. Diagnosis was made by gallium scintigraphy and magnet resonance imaging but was not confirmed by dural biopsy. Treatment with corticosteroid alone was extremely effective for him, while in most cases hypertrophic pachymeningitis recurs or progresses despite the treatment.
authors.affiliation: Department of Internal Medicine, Section of Rheumatology, Fujieda Municipal General Hospital, Shizuoka, Japan.
authors.forename: Motoko
authors.initials: M
authors.lastname: Kanemoto
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Ota
authors.forename: Taro
authors.initials: T
authors.lastname: Karahashi
authors.forename: Norio
authors.initials: N
authors.lastname: Nozue
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications / Q000175:diagnosis*; D015415:Biomarkers / Q000097:blood; D002097:C-Reactive Protein / Q000032:analysis; D003392:Cranial Sinuses / Q000473:pathology*; D004388:Dura Mater / Q000473:pathology*; D005500:Follow-Up Studies; D005708:Gallium; D006801:Humans; D006984:Hypertrophy / Q000150:complications / Q000000981:diagnostic imaging / Q000188:drug therapy; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008581:Meningitis / Q000150:complications / Q000000981:diagnostic imaging* / Q000188:drug therapy; D008875:Middle Aged; D011239:Prednisolone / Q000627:therapeutic use; D011877:Radionuclide Imaging; D012217:Rheumatoid Factor / Q000097:blood*; D018570:Risk Assessment; D012720:Severity of Illness Index; D016896:Treatment Outcome
chemical_list: D015415:Biomarkers; D002097:C-Reactive Protein; D012217:Rheumatoid Factor; D011239:Prednisolone; D005708:Gallium