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A 78-year-old woman with a history of breast cancer, melanoma, and radiation therapy presented with worsening chronic osteomyelitis and radiation necrosis of her clavicle, scapula, and upper ribs. Despite treatment with vancomycin, she experienced significant lymphedema and near-total loss of motor function in the left upper extremity. Given the progression of the disease and diminished functionality of the limb, a forequarter amputation was determined to be the only viable option beyond supportive care. The forequarter amputation was successful, and it involved the removal of the left clavicle, scapula, ribs 1-4, and the upper extremity. Within a month, the patient regained independence in all activities of daily living, highlighting the potential for improved quality of life from surgical interventions under certain circumstances. Our case serves as a reminder that the utility of the forequarter amputation extends beyond its most common uses, such as trauma or sarcoma, and in rare cases can be an option for refractory osteomyelitis of the proximal upper extremity and chest wall., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Petrovic et al.)

Congenital/neonatal bone neoplasms are extremely rare. We present the case of a patient with a neonatal bone tumor of the fibula that had osteoblastic differentiation and a novel PTBP1::FOSB fusion. FOSB fusions are described in several different tumor types, including osteoid osteoma and osteoblastoma; however, these tumors typically present in the second or third decade of life, with case reports as young as 4 months of age. Our case expands the spectrum of congenital/neonatal bone lesions. The initial radiologic, histologic, and molecular findings supported the decision for close clinical follow-up rather than more aggressive intervention. Since the time of diagnosis, this tumor has undergone radiologic regression without treatment., (© 2023 Wiley Periodicals LLC.)