 Hi everyone, myself Dr. Gurshan Singh Makar, second year Rose graduate student of radio diagnosis in Maharishi Markandeshwar University, Mulanambala. My paper presentation is on the role of imaging in evaluation of the Iving Sakoma. Iving Sakoma family of tumour includes the Auschwitz Iving Sakoma, extra skeletal Iving Sakoma, asking tumours, etc. They share a kerative abnormality with translocation involving the chromosome 11 and 22. Iving Sakoma of the bone represents the second most common primary malignant tumour of bone in children and adolescent. The most commonly affected side of the femur, ileum, tibia, humerus, fibula, ribs. And the less frequently involved keratolocation include spine, scapula, hand, radius or alum. Long tubular bone involvement is more commonly proximal than distally. So, here is the AGCC staging of the malignant bone tumour and Anakin classification. Aims an objective to describe the spectrum of radiologic findings in the Iving Sakoma and to assess the intra and extra compartment extent of the Iving Sakoma. Material and methods. The study was carried out in the department of radio diagnosis in Maharishi Markandeshwar University and I included 15 cases. The inclusion criteria were the patient with the bone and joint pain, patient with incisional findings on x-ray and histologically proven from either surgical or biopsy proven specimen. And the exclusion criteria were the post-operative patients and all the patients having cardiac base makers, prosthetic heart valves, cochlear implants and others. Equipment MRI was carried out on 1.5 desla scanner and this was the MRI protocol. And the coil used was a flex coil and spine coil. The results and observation. In this study, I observed that most of the cases were found to be present in male and I observed that most of the cases occurred in metaphysil followed by diphysil. I also found that the most of the cases occurred in femur and tibia, followed by fibula, followed by ribs. So this is the first case. A 17-year-old girl presented an OPD with a complaint of swelling and pain in the left hip and thigh with a difficulty in walking since 8th month. She also had a complaint of fever and lab investigations showed raised ESR and WBC levels. There was no history or trauma. The pathological diagnosis was giving Sakoma. So this is an x-ray or bilateral hip joint. In this, we can see a lytic lesion in the left AC tabulum, ischium, adjusted ileum and left pubic with irregular periosteal reaction and associated soft tissue mass. On T1 weighted axial image, a largely poorly defined lesion appearing hypo intense on T1 images involving the left AC tabulum, ischium, adjacent ileum and left inferior pubic remus was seen with associated multi-loverated soft tissue mass with periosteal region appearing hypo intense on T1. Small area of T1 hyperintensities were seen within it. On T2 weighted images, lesion as well as a soft tissue mass appeared heterogenously hyper intense on T2 weighted and stir images. Soft tissue mass was seen in the involved adjacent part of the obturated internus and pyreform muscle with displacement of the bladder towards the right side. On T1 weighted post-contrast images and T2 weighted post-contrast images, soft tissue mass was seen extending via sciatic foremen with involvement of the left gluteal muscles. Intraarticular extension of the mass in casing the femoral head was seen with associated marked edema in the muscles of the middle compartment of the left thigh with fluid in intramuscular facial plane was seen. There was also other findings like marrow deposits were seen in right AC tabulum, right femoral intratrochentric region, sacral aela on the left side, left ileum and right femoral head. Multiple small nodular lesions were seen in relation to the lower vagina, perenium and bilateral parametral regions which appeared to be heterogenously hyper intense on T2 and stir images suggesting deposits. Discussion and conclusion. Iving sarcoma family of the tumor includes Osteocephalus sarcoma, extracellular Iving sarcoma, primitive neuroctodermal tumors and Asking tumors. They share a carotide abnormality and histologically, these lesions demonstrate crowded sheets of small round blue cells. Imaging features of the Osteocephalus sarcoma often suggest the diagnosis. Treatment of this tumor is usually a combination of neo-adjuvalent chemotherapy followed by a surgical resection which may be supplemented with radiation therapy. Differential diagnoses include Iving sarcoma family of tumors, Pnet and Asking tumors, Osteocephalus sarcoma. Osteocephalus sarcoma more often has amorphous calcified matrix, more prevalent around the knee and in the proximal humerus. Then there is Osteomalitis, metastatic disease, hematological malignancy and eosinophilic granuloma. Here are some references. Thank you so much.