Infantile Cortical Hyperostosis: Report of a Case with Observations on Clinical Manifestations, Radiology, and Pathology with a Late Follow-Up of Eight Years.

. The purpose of our study was to investigate clinical manifestations, roentgen images, histopathological studies, and evolution of the disease in patient displaying infantile cortical hyperostosis. .

Liposclerosing myxofibrous tumor: A series of 9 cases and review of the literature.

Background: Liposclerosing myxofibrous primary bone tumor is a rare benign bone lesion that was characterized by complex mixture of various histological elements.

Methods: We have studied the radiological, clinical and pathological features of nine patients with this disorder. Pain and limping were the main symptoms.

[Presence of riziform bodies in a patient with juvenile idiopathic arthritis: case report and literature review.].

Riziform bodies are structures formed by fibrin and cells that can be found in the synovial fluid or attached to the synovium, and have this denomination due to its rice grain-like appearance. They have already been described in several diseases such as tuberculous arthritis, rheumatoid arthritis, and rarely in juvenile idiopathic arthritis (JIA). This is the case of a boy with a 4-month course of chronic monoarthritis of the left knee, with family history of sarcoidosis in which diagnostic investigation showed the presence of these riziform bodies in the synovial biopsy.

Relapsing polychondritis in childhood: three case reports, comparison with adulthood disease and literature review.

Relapsing polychondritis (RP) is a rare autoimmune systemic disease, especially in childhood. To report three new pediatric RP cases, to provide a literature review and to compare with adulthood disease, retrospective data collection from three childhood RP cases was observed in a Brazilian Pediatric Rheumatology Division. A literature review based on a MEDLINE database search was performed.

Case report: Periosteal Ewing's sarcoma: case report and literature review.

Ewing's sarcoma is a round-cell tumor that arises most often in a medullary cavity. This neoplasm is uncommon in a subperiosteal location. We report a new case of a 12-year-old boy with a periosteal Ewing's sarcoma, located in the femur, who was treated by cortical segmental resection associated with chemotherapy.

Metastatic skeletal leiomyomatosis (leiomyomatosis ossea).

We present a unique case of metastatic leiomyomatosis to the skeleton. The very extensive involvement of the axial and peripheral skeleton with "ring" lesions and associated cyclical premenstrual pain eventually led to the correct diagnosis and total relief with hormonal therapy.