Malignant fibrous histiocytoma (MFH), a type of sarcoma, is a malignant neoplasm of uncertain origin that arises both in soft tissue and bone. We present a case of MFH in a 18-year-oldfemale patient with swelling on the left maxillary posterior region .This paper demonstrates the malignant character of this neoplasm. CT scans revealed a clouding lesion in the left maxillary premolar and molar r...

a man with metastatic carcinoma of the colon had a bone scan which revealed urinary retention in the leftkidney. ten months later, a tc-99m-dtpa renai glomerular study showed the left kidney to have only 8% oftotal renal function. fifteen months after that, (he same kidney demonstrated 9% of total function, while theright kidney had evolving obstruction due to his neoplasm. the case shows that ...

Precursor B lymphoblastic lymphoma is a high-grade neoplasm arising from precursor lymphocytes of B-cell lineage. Extranodal sites such as the skin and bone are often involved, but gastrointestinal lesions of this disease are rarely encountered. Due to the infrequency, macroscopic forms of the gastrointestinal lesions have not been fully described. In this report, we present a case of precursor...

Medication-related osteonecrosis of the jaw (MRONJ) has been associated with use different drugs administered in treatment malignant neoplasms or metastases and antiresorptive therapies. Since 2010, denosumab, a monoclonal antibody whose mechanism action is to prevent activation RANK receptor on surface osteoclasts, jaw. Primary intraosseous squamous cell carcinoma (PIOSCC) rare neoplasm charac...

Neuroblastoma stands out among pediatric solid tumors because of its relative frequency, intriguing natural history, prognostic biologic features, and therapeutic challenges. It is the most common extracranial pediatric solid tumor and the most common neoplasm in infancy; >90% of the approximately 600 cases diagnosed annually in the United States are in children < or = 5 y old. Screening progra...

Diagnosis Although magnetic resonance imaging is the diagnostic method of choice [4] and can be repeated many times in pregnancy [5], ultrasound, biopsy to stage the tumor, and clinical examination remain equally safe and important in arriving at the diagnosis. Tests applying X-rays or gamma-rays (isotope scans) should be avoided [6]. Independence of bone tumors from hormonal regulation was sho...