INTRODUCTION To examine the natural history of subchondral bone cysts and to determine whether knee cartilage loss and risk of joint replacement is higher in knees with cysts, compared with those with bone marrow lesions (BMLs) only or those with neither BMLs nor cysts. METHODS The symptomatic knee in 132 subjects with knee osteoarthritis (OA) was imaged by using magnetic resonance imaging at...

purpose: to present two patients with hydatid and alveolar cysts of the orbit and to present their clinical, imaging, pathologic and therapeutic features. case report: two young children from rural areas were referred for progressive proptosis. imaging showed intraorbital cysts. they were operated on with a clinical suspicion of hydatid and alveolar cysts. pathologic evaluation confirmed the di...

PURPOSE To determine the value of inversion recovery half-Fourier single-shot turbo spin-echo (IR-HASTE) MR sequences in the characterization of a variety of intracranial lesions, with the focus on differentiating between epidermoids and nonneoplastic cystic lesions. METHODS We used a 1.5-T MR unit to study five epidermoids, seven arachnoid cysts, seven other nonneoplastic cysts (three neuroe...

OBJECTIVE To determine the distribution of odontogenic cysts diagnosed histologically over a period of 38 years in a Brazilian population according to age, gender and site affected and to compare these data with previously reported studies from other countries. STUDY DESIGN A total of 1019 cases of odontogenic cysts diagnosed between 1970 and 2007 were studied. Clinical features obtained from...

OBJECTIVES Congenital cysts of the mediastinum are an uncommon but important diagnostic group, representing 12 to 30% of all mediastinal masses. The purpose of this study was to review our institutional experience with congenital cysts of the mediastinum, emphasizing the clinical spectrum of the disease. DESIGN Retrospective study. OBJECTIVES University hospital unit of general thoracic sur...

An investigation was carried out to study the prevalence of Echinococcus granulosus hydatidosis in feral pigs (Sus domesticus) in the Charters Towers region of tropical North Queensland. Data were collected from a total of 238 carcasses, which were hunted and shot in the Burdekin River catchment area. Organs of the abdominal, thoracic, and pelvic cavities were examined for the presence of hydat...