Quadratus Femoris Partial Tear Secondary to Occult Ischiofemoral Impingement.

Introduction: Hip pain in children and adolescents may become a diagnostic challenge. A wide range of causes must be considered in the deferential diagnosis. Ischiofemoral impingement (IFI) is a pathological condition defined by hip pain associated with narrowing of the ischiofemoral (IF) space.

Cystic Echinococcosis of the Ilium Treated with Curettage and Microwave Thermoablation Followed by Bone Cement Installation: A Novel Treatment Technique for a Rare Disease.

Bone cystic echinococcosis (CE) is a rare condition requiring a high level of suspicion during primary diagnosis. Wide excision of the lesion is the gold standard of treatment, posing however extreme challenges in certain parts of the skeleton, since it may well be accompanied by increased morbidity. We report the case of a 35-year-old Caucasian female with iliac bone CE, referred to our department (a regional referral center for the treatment of patients with musculoskeletal tumors).

A giant rheumatoid nodule of the cubital fossa: A mimicker of malignancy.

Rheumatoid nodules (RNs) are the most common extraarticular manifestation in patients with rheumatoid arthritis, appearing in up to 30%. They are typically localized subcutaneously in pressure points or joints, such as the extensor surface of the elbow. But when they have atypical localizations, they provide a confusing differential diagnosis including the possibility of a malignancy.

Localized Chronic Form of Langerhans Cell Histiocytosis in the Femur of a 16-Year-Old Male Successfully Treated with Radiofrequency Ablation.

Only three cases of patients suffering from a localized chronic form of Langerhans cell histiocytosis (LCH) successfully treated with radiofrequency ablation (RFA) have been published so far. This is the first case report of a patient with a localized chronic form of LCH of the femur, which was successfully treated with percutaneous image-guided RFA, and who was evaluated pre-RFA and followed up post-RFA for a period of 48 months, in order to validate the safety and efficacy of this method and to obtain imaging studies depicting the actual in situ changes taking place post-RFA. RFA was proved to be a safe and efficient method when treating patients with a localized chronic form of LCH.

Myositis ossificans in the infraspinatus muscle: The key to diagnosis.

The zone phenomenon is the most important diagnostic feature in differentiating myositis ossificans from malignancies such as osteosarcomas, which calcify from the center to the periphery and its presence in our late-stage lesion was the key to diagnosis.