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Osteosclerosis

Osteosclerosis is normally detected on an X-ray as an area of whiteness, and is where the bone denesity has significantly increased. Localized osteosclerosis can be caused by injuries that compress the bone, by osteoarthritis, and osteoma. It occurs throughout the body in osteopetrosis.

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Orthopaedic manifestations of acute leukemia in children
From Journal of Bone and Joint Surgery, 1/1/03 by S, Turra

Paediatric acute leukemia may present with various clinical mifestations that mimic different orthopaedic conditions and can produce diagnostic confusion. In a retrospective study we reviewed the cases of 129 children (average age 6.2 years) affected by acute leukemia who had been seen between 1984 and 1999 at the Paediatric Haemato-Oncology Department of the University of Padova and had complete clinical and radiographic data. Almost all the patients (93.7%) had a variety of general signs and symptoms at presentation: weakness (44.3%); anorexia (32.7%); lethargy (7.8%); fever (64.2%); pallor (79.6%); bleeding (25.3%); lymphoadenopathy (58.8%); hepatosplenomegaly (75.6%). Thirty-seven patients (28.6%) had complaints related to the muscoloskeletal system when they were first seen including: pain (92.7%), swelling (29,7%), joint limitation (47.8%), limping (18.8%). Skeletal surveys were made for ninety-two (71.3%) of the patients when the diagnosis of leukemia was made, while the other thirty-seven (28.6%) had radiograms of the symptomatic areas. Seventy-five patients (58.1%) presented normal radiograms and fifty-four (41.9%) showed one or more abnormalities. Osteopenia was diagnosed in eight patients; lytic lesions were see in fourteen; metaphyseal hands in ten; periosteal reactions in four; osteosclerosis in two; mixed osteosclerosis and osteolysis in two; permetive pattern in eight; vertebral collapse in three children. During the course of the disease two patients developed avascular necrosis of the femoral head; one reported a pathologic femoral neck fracture; three presented collapse of one or more vertebral bodies. All these findings are not pathognomonic but the clinician should always include acute leukemia in the differential diagnosis of any child with unexplained radiografic changes and/or persistent skeletal pain.

Turra, S., Gigante, G.L. Bisinella, R. Sinigaglia, L. Zanesco*, S. Varotto*

Paediatric Orthopaedic Unit of the University of Padova, * Paediatric Haemato-Oncology Unit. The University of Padova, PADOVA,

Copyright British Editorial Society of Bone & Joint Surgery 2003
Provided by ProQuest Information and Learning Company. All rights Reserved

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