title: Classical and atypical location of adamantinomas--presentation of two cases.
abstract: BACKGROUND
  Adamantinomas are rare low-grade primary bone tumors of unknown histological origin. They typically develop in the diaphyses and metaphyses of long bones, prevalently the tibia.
  
  
  METHODS
  The cases of 2 female patients, one with localized swelling of the lateral metatarsals and one with pain of the tibia are being reported. The diagnostic work-up including biopsy verified an adamantinoma in both cases. In the younger patient, the tumor was located in the metatarsals 4 and 5, in the older patient in the left tibial diaphyses. In both patients, an en-bloc resection of the tumor with wide surgical margins was performed. Further follow-ups 73 and 36 months after surgery showed no local recurrence or metastatic spread.
  
  
  CONCLUSIONS
  Adamantinomas of the short bones are rarely reported. In accordance to the literature, an en-bloc resection with wide surgical margins seems to reduce the risk of local recurrence and metastatic spread.
authors.affiliation: Department of Orthopedics, University of Ulm, Oberer Eselsberg 45, 89081 Ulm, Germany. benjamin.ulmar@uni-ulm.de
authors.forename: Benjamin
authors.initials: B
authors.lastname: Ulmar
authors.forename: Günter
authors.initials: G
authors.lastname: Delling
authors.forename: Matthias
authors.initials: M
authors.lastname: Werner
authors.forename: Klaus
authors.initials: K
authors.lastname: Huch
authors.forename: Heiko
authors.initials: H
authors.lastname: Reichel
mesh_terms: D050398:Adamantinoma / Q000175:diagnosis* / Q000601:surgery*; D000293:Adolescent; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D005260:Female; D006801:Humans; D008682:Metatarsal Bones / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D035583:Rare Diseases / Q000175:diagnosis / Q000601:surgery; D013977:Tibia / Q000473:pathology / Q000601:surgery*