This Article  • Full text  • PDF  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Topic Collections  • Hematology/ Hematologic Malignancies  • Leukemias/ Lymphomas  • Immunologic Disorders  • Alert me on articles by topic

Sharon Geaghan, MD
From the Departments of Pediatrics and Pathology, Lucile Salter Packard Children's Health Services at Stanford, Palo Alto, Calif.

Arch Pediatr Adolesc Med. 2001;155:409-410.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

A 10-YEAR-OLD Hispanic boy fell from a swing, had medial joint pain of the lower left extremity, and was unable to fully extend the knee. Plain radiography of the left lower extremity showed no evidence of fracture or dislocation. Arthroscopy revealed an old anterior cruciate ligament tear and exuberant synovium; biopsy findings showed fibrosis. Persistent inability to fully extend the knee and proximal tibial tenderness prompted repeated radiographic evaluation. Anterior, posterior, and lateral plain radiographs of the left tibia (Figure 1) revealed an ill-defined lytic lesion in the proximal tibial epiphysis. Soft tissue swelling was appreciated at the joint space on lateral view. On a T1-weighted magnetic resonance image, the lesion was crossing the growth plate and extended into the metaphysis. It was centrally located but extended laterally and medially to the epiphyseal and metaphyseal margins (Figure 2). The patient underwent left tibial . . . [Full Text of this Article]