Schwannomas (also called neurilemmomas) are slow-growing nerve sheath tumors derived from Schwann cells. However, intraosseous schwannoma is a rare entity with an incidence of only 0.2% in overall primary bone tumors. The purpose of this case report is to present a case of an intraosseous schwannoma of the calcaneus. A 35-year-old woman was admitted to our outpatients' clinics with a complaint of long-time right heel pain (for approximately eight months). After a suspicious cystic lesion was observed on the patient's plain radiograph examination, a magnetic resonance imaging (MRI) was performed. The MRI showed a 22 × 20 mm intraosseous cystic lesion at the posterior part of the calcaneus. Extended curettage and iliac bone grafting were performed. In the presence of postoperative histopathologic and immunohistochemical examination, histopathologic diagnosis of the patient was reported as intraosseous schwannoma. After 4 weeks of nonweight-bearing, she completely recovered with no pain. In conclusion, intraosseous schwannoma of the calcaneus must be kept in mind for patients who have chronic heel pain.

Objectives This study aims to investigate the effect of radial extracorporeal shock wave therapy (rESWT) treatment in the prevention of epidural fibrosis after laminectomy in rats. Materials and methods Eighteen 16-month-old male Sprague-Dawley rats weighing 300 g were used in this experimental study between November 2019 and February 2020. The rats were randomly divided into two groups as the control group (L3-L4 total laminectomy without any treatment) and the study group (L3-L4 total laminectomy plus rESWT). The rats were sacrificed at the postoperative sixth week and the lumbar spine was excised en bloc, fixed, and decalcified. Sections were stained with hematoxylin-eosin to evaluate epidural fibrosis, acute inflammation, chronic inflammation, and vascular proliferation. Results The median value and standard deviations were obtained based on histological examinations. Accordingly, epidural fibrosis decreased significantly in the study group compared to the control group. There was no statistically significant difference between the groups in terms of acute and chronic inflammation response and vascular proliferation. Conclusion The rESWT application immediately after surgery is effective in preventing epidural fibrosis after laminectomy in rats.

Tuberculosis (TB) infection is a common health problem in low socioeconomic populations in developing countries. Osteoarticular TB is a disease that rarely occurs outside the vertebral column and is often diagnosed late or misdiagnosed, particularly in non-weight bearing joints. A 51-year-old female patient with Behçet’s disease presented with shoulder TB following rotator cuff repair surgery, leading to joint resection as a result of recurrent infections with no reproduction in culture samples due to delayed diagnosis. Surgical excision was proposed for the treatment of draining a mass with a sinus tract opening into the joint on the anterior aspect of the right shoulder. A diagnosis was able to be reached after 13 operations, based on the presence of TB bacilli in the pathological examination of the samples. In conclusion, TB should be considered in the absence of reproduction in culture samples taken during persistent post-surgical infections.