title: Giant cell reparative granuloma of the hallux following enchondroma.
abstract: Giant cell reparative granuloma (GCRG) is a rare, benign intra osseous lytic lesion occurring especially in gnathis bone but also seen in feet and hands. It has similar clinical and radiological presentations than giant cell tumor, chondroblastoma, aneurysmal bone cyst, and hyperparathyroidism brown tumors but with specific histological findings We report a case of a GCRG of hallux phalanx in 18 years old patient appearing many years after enchondroma curettage and grafting. Radiographs showed a multiloculated osteolytic lesions involving whole phalanx with cortical thinning and without fluid-fluid levels in CT view. Expected to be an enchondroma recurrence, second biopsy confirmed diagnosis of GCRG with specific histological findings. Although if aetiopathogeny remains unknown, GCRG is reported to be a local non neoplasic reaction to an intraosseous hemorrhage. Our exceptional case claims that this tumor can appear in reaction to cellular disturbance primary or secondary.
authors.affiliation: Orthopedic Pediatric Department, Kassab Institute, Tunis, Tunisia.
authors.forename: Khaled
authors.initials: K
authors.lastname: Kamoun
authors.affiliation: Orthopedic Pediatric Department, Kassab Institute, Tunis, Tunisia.
authors.forename: Tarak
authors.initials: T
authors.lastname: Sellami
authors.affiliation: Orthopedic Pediatric Department, Kassab Institute, Tunis, Tunisia.
authors.forename: Zied
authors.initials: Z
authors.lastname: Jlailia
authors.affiliation: Anatomopathology Department, Kassab Institute, Tunis,Tunisia.
authors.forename: Layla
authors.initials: L
authors.lastname: Abid
authors.affiliation: Orthopedic Pediatric Department, Kassab Institute, Tunis, Tunisia.
authors.forename: Mourad
authors.initials: M
authors.lastname: Jenzri
authors.affiliation: Radiology Department, Kassab Institute, Tunis, Tunisia.
authors.forename: Mouna
authors.initials: M
authors.lastname: Bouaziz
authors.affiliation: Orthopedic Pediatric Department, Kassab Institute, Tunis, Tunisia.
authors.forename: Omar
authors.initials: O
authors.lastname: Zouar
mesh_terms: D000293:Adolescent; D001706:Biopsy; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002812:Chondroma / Q000175:diagnosis* / Q000473:pathology; D006101:Granuloma, Giant Cell / Q000175:diagnosis* / Q000473:pathology; D006214:Hallux / Q000473:pathology*; D006801:Humans; D008297:Male
keywords: Tumor; benign; bone; foot