title: Giant cell tumour of tendon sheath with simultaneous two tendon involvement of the foot treated with excision of the tumour and reconstruction of the flexor retinaculum using tibialis posterior tendon in a paediatric patient: A rare case report.
abstract: Giant cell tumour of tendon sheath is a benign soft tissue tumour arising from the tendon sheath. The involvement of foot and ankle by such tumours is relatively rare. Children are not commonly afflicted by this condition. All such tumours are reported to arise either from a single tendon sheath or one joint. We report a case of giant cell tumour of tendon sheath in a 12-year-old child, arising simultaneously from the tendon sheaths of tibialis posterior and flexor digitorum longus tendons, as well as extending into the ankle joint. It was treated by complete excision of the mass along with the tendon sheaths with reconstruction of the flexor retinaculum. The location of the tumour, age of the patient, diffuse nature of the tumour and novel technique of reconstruction of the flexor retinaculum make this case extremely rare and the first to be reported in literature.
authors.affiliation: Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India. Electronic address: vivek_tiwari50@yahoo.com.
authors.forename: Vivek
authors.initials: V
authors.lastname: Tiwari
authors.affiliation: Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India. Electronic address: drtahir.ansari@gmail.com.
authors.forename: Tahir
authors.initials: T
authors.lastname: Ansari
authors.affiliation: Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India. Electronic address: samarthmittal@gmail.com.
authors.forename: Samarth
authors.initials: S
authors.lastname: Mittal
authors.affiliation: Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India. Electronic address: dr.pankajkristwal@gmail.com.
authors.forename: Pankaj
authors.initials: P
authors.lastname: Sharma
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
authors.forename: Aasma
authors.initials: A
authors.lastname: Nalwa
mesh_terms: D002648:Child; D005528:Foot / Q000473:pathology / Q000601:surgery*; D005870:Giant Cell Tumors / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008297:Male; D012983:Soft Tissue Neoplasms / Q000473:pathology / Q000601:surgery*; D013710:Tendons / Q000473:pathology / Q000601:surgery* / Q000637:transplantation
keywords: Diffuse giant cell tumour tendon sheath; Flexor retinaculum reconstruction; Foot tumour; Giant cell tumour tendon sheath; Paediatric tumour