Primary myeloid sacrom (MS) is a rare tumor and even more rare in multiple organs with no evidence of bone marrow involvement. This report describes an unusual case of a 19-year-old male presenting scrotal MS with a history of subconjunctival MS, 5 months ago. Bone marrow biopsies showed no evidence of acute leukemia. Despite radiotherapy for first involvement and chemotherapy for second presen...

BACKGROUND Although primary bone tumors are relatively uncommon, they constitute the most important tumors in patients less than 20 years. We aimed to determine the frequencies of primary bone tumors and tumor-like lesions of bone and the anatomical sites of their occurrence. METHODS A retrospective review of histopathology reports of all bone specimens received in a private pathology laborat...

Objective: Patella is a sesamoid bone which develops in the quadriceps tendon. It is an uncommon site for neoplasms. The most common primary tumors which involve patella are benign. These include chondroblastoma, giant cell tumor (GCT) and aneurysmal bone cyst. Malignant lesions are less common in patella. These encompass metastasis, osteosarcoma and hemangioendothelioma. The most common compla...

Epitheloid osteosarcoma (carcinosarcoma) of the bone is a rare malignant tumor and only a few cases have been reported in the literature. In this study, we report two cases of osseous carcinosarcoma (epitheloid osteosarcoma) with immunohistochemical studies.  The morphological and immunohistochemical data in these two cases support the theory of divergent differentiation of primitive, uncommitt...

Objective. The default window setting on PET/CT workstations is soft tissue. This study investigates whether bone windowing and hybrid FDG PET/CT can help differentiate between malignant and benign primary bone tumors. Materials and methods. A database review included 98 patients with malignant (n=64) or benign primary bone (n=34) tumors. The reference standard was biopsy for malignancies and b...

Primary malignant sternal tumors are rare clinical entities. We came across two such patients with primary tumors. One was a chondroblastic osteosarcoma while the other chondrosarcoma. patient received neoadjuvant chemotherapy followed by surgery. The second underwent upfront Both cases wide excision of tumor (sternum along part medial ends bilateral clavicles and upper ribs). Reconstruction do...

Aim: Bone tissue is the primary organ of hematopoiesis and osteogenesis in healthy individuals. one most frequently metastasized organs. In addition, for all types cancer, it an indication that cancer has reached a level where can no longer be cured patient's life expectancy reduced. The aim this study was to retrospectively evaluate cases operated bone metastasis. Material Methods: A total 67 ...

Metastatic and primary bone tumors are malignant tumors affecting the skeleton. Although the prognosis of patients with these tumors has improved with the development of effective chemotherapy, the challenges of local recurrence, subsequent osteolysis, degradation of bone strength and unresectable tumors persist. Local control of these tumors is therefore a key strategy to address these limitat...

In the past few years, various investigators have collected information on naturally occurring and radiation-induced bone tumors. This paper compares (a) the type and distribution of naturally occurring bone tumors in man and dog, (b) the type and distribution of bone tumors induced in man and dog by bone-seeking radionuclides, and (c) the skeletal distribution of osteosarcomas. We have compile...