Various conditions may mimic osteosarcoma. The differential diagnosis of osteosarcoma is broad. A proper history, examination, diagnostic imaging studies, and pathological analysis are essential to establish the precise diagnosis. This case report serves to illustrate the significance of recognizing similarities and other rare features to prevent late or misdiagnosis.

Actinmomycetma is a granulomatous infection with a presentation was very similar to osteosarccoma. Multidisciplinary team and triple assessments are extremely important to prevent misdiagnosis, surgical treatment in combination with medical treatment followed by regular clinical and radiological follow-up can be a limb-saving procedure in such cases.

Giant-cell tumors of the tendon sheath (GCT-TS) are relatively common benign tumors that arise in close proximity to joints and tendons. Malignant GCT-TS are extremely rare. Surgery with wide resection remains the cornerstone for treating malignant giant-cell tumors of the tendon sheath especially in large tumor cases.

Background Musculoskeletal diseases are significant cause of morbidity and disability worldwide. Knowledge regarding these conditions is essential to the medical practice. The purpose of this study is to assess the adequacy of undergraduate orthopaedic knowledge among IUA students. Methods This is a descriptive cross-sectional study conducted among final year medical students at the faculty of Medicine of the International University of Africa who finished orthopedic teaching. The validated basic cognitive examination designed by Freedman and Bernstein, consisting of 25 short answer questions was used in this study. Overall scores and responses to the individual questions were analyzed. The recommended passing score of 73.1 per cent as suggested by Freedman and Bernstein was considered. Result Ninety–eight students took the examination. The students' scores in the cognitive part ranged from 6 to 25. The average cognitive score was 56.9%, with a range of 24–100%. Only six (6.12%) of participants obtained the passing score of ≥ 73.1%. Only one student obtains the full mark in the cognitive part (25 points out of 25 points). Thirty-two students (32.7%) considered orthopedic cases the most challenging to perform a physical examination and diagnosis. Most students (64.3%) rank bedside teaching rounds with the consultant as the most elements of learning environments have an impact on their orthopedic education. Forty (40.8%) of students thought the time allotted to orthopedics in the medical curriculum was inadequate. Fifty (51%) of students mention that they may consider orthopedic as a future career. Conclusion The majority of the IUA students were not achieved the pass mark set by Freedman and Bernstein validated basic musculoskeletal examination. Curriculum and teaching methods is inadequate and should be re-evaluated to address this problem.. Graduate medical education should provide a strong foundation for diagnosing and treating musculoskeletal disorders.

We report a case of a 9-year-old girl with Ewing’s who was initially thought to have osteomyelitis. As part of osteomyelitis management, an attempt of drilling the cortex has paved the way for the tumor to extend to all thigh compartments which was beyond salvage. Disarticulation was the final result.