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Musculoskeletal tumours
Published in Professor Sir Norman Williams, Professor P. Ronan O’Connell, Professor Andrew W. McCaskie, Bailey & Love's Short Practice of Surgery, 2018
Professor Sir Norman Williams, Professor P. Ronan O’Connell, Professor Andrew W. McCaskie
Simple (unicameral) bone cyst (Figure37.20) is a membrane-lined cavity filled with serous fluid within a bone. It usually occurs in the proximal long bones of children. Associated thinning of the cortex of the bone can lead to fracture. Such fractures usually heal with conservative treatment, but the cyst may only partially resolve.
Paediatric lower limb trauma
Published in Sebastian Dawson-Bowling, Pramod Achan, Timothy Briggs, Manoj Ramachandran, Stephen Key, Daud Chou, Orthopaedic Trauma, 2014
Proximal femur fractures comprise <1 per cent of all paediatric fractures, and 85–90 per cent follow high-energy trauma. Non-accidental injury (NAI) should be considered if the child is <12 months old. Low-energy proximal femur fractures are usually the result of pre-existing bone pathology, in particular: Unicameral bone cysts.Osteogenesis imperfecta.Fibrous dysplasia.Osteopaenia from paralysis.
Bones, joints, muscles and tendons
Published in Kevin G Burnand, John Black, Steven A Corbett, William EG Thomas, Norman L Browse, Browse’s Introduction to the Symptoms & Signs of Surgical Disease, 2014
Kevin G Burnand, John Black, Steven A Corbett, William EG Thomas, Norman L Browse
This is also known as a solitary cyst or unicameral bone cyst. It generally appears in childhood, usually in the metaphysis of a long bone, commonly in the proximal humerus or femur. It does not expand the bone.
Solitary Bone Cyst Like Areas in Myositis Ossificans: A Breast Mass in a Child
Published in Fetal and Pediatric Pathology, 2021
Ayse Nur Akatli, Sema Uguralp, Saadet Alan, Aytac Tasci, Gokhan Yildirim
Simple/solitary bone cyst (SBC), also known as unicameral bone cyst, is a non-neoplastic bone lesion that appears most often in children and adolescents. It mainly involves the metaphyseal areas of long bones with open physes [11] Solitary bone cysts were first described by Virchow in 1891 as “cystic structures”, and at the time, were thought to be linked to anomalies in the local circulation [12]. These cysts are fluid-filled cavities that can also be multi-loculated. Solitary bone cyst is mostly a unilocular cyst with one-layer of mesothelium-like epithelium lining the thin cyst wall. The cyst wall manifests reactive bone formation, fibrovascular proliferation, scattered giant cells, and occasionally, cholesterol clefts. Amorphous cement-like fibrin depositions are considered important clues for the diagnosis [13]. The etiology is unknown, with proposed causes ranging from trauma to developmental factors [11].