title: Periosteal ganglion: a report of three new cases including MRI findings and a review of the literature.
abstract: OBJECTIVE
  To clarify the clinicopathological features of periosteal ganglion.
  
  
  METHODS
  Three patients with periosteal ganglion were studied clinicopathologically.
  
  
  METHODS
  One patient was selected from the files of our institute and two from a consultation file.
  
  
  CONCLUSIONS
  All three lesions were located over the medial aspect of the tibia. Plain radiographs showed cortical erosions of varying degrees and mild periosteal reaction of the medial side of the tibia. MR images demonstrated well-circumscribed lesions overlying the cortical bone of the tibia, shown as low-intensity areas on T1-weighted images. On T2-weighted images, lesions were homogeneous, lobulated, and showed a characteristic markedly increased signal intensity. These findings are helpful in making a diagnosis of periosteal ganglion. Each patient had an uneventful clinical course after an excision involving the wall of the ganglion, the adjoining periosteum, and the underlying sclerotic cortical bone.
authors.affiliation: School of Medicine, Department of Orthopaedics, Akita University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Okada
authors.forename: E
authors.initials: E
authors.lastname: Unoki
authors.forename: H
authors.initials: H
authors.lastname: Kubota
authors.forename: E
authors.initials: E
authors.lastname: Abe
authors.forename: M
authors.initials: M
authors.lastname: Taniwaki
authors.forename: M
authors.initials: M
authors.lastname: Morita
authors.forename: K
authors.initials: K
authors.lastname: Sato
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010521:Periosteum / Q000473:pathology*; D010522:Periostitis / Q000175:diagnosis* / Q000453:epidemiology; D013977:Tibia / Q000473:pathology*