Reply to thread

Message: <blockquote data-quote="amila_90210" data-source="post: 4088852" data-attributes="member: 111009">Isotope scanning is also used in the staging process of a  primary sarcoma such as an osteosarcoma to make sure the patient does not have  an asymptomatic remote skeletal lesion. Technetium-99 scans are also useful in  distinguishing blastic lesions of bone. Given that the study reflects metabolic  activity, an enostosis (bone island) would not demonstrate significant increased  activity compared with a blastic prostate metastasis. Inflammatory disease and  trauma also show increased activity. It is important to note, however, that  multiple myeloma and metastatic squamous cell carcinoma may not demonstrate  technetium uptake (ie, a false-negative result). Skeletal surveys are preferable  for screening for additional sites of involvement in such cases. Computed Tomography and Magnetic Resonance Imaging Computed tomography (CT) remains a standard imaging  procedure for use in well-selected clinical situations. Perhaps the best  indication for CT is for smaller lesions that involve cortical structures of  bone or spine (Figure 6–5). In such cases, CT is superior to MRI because the  resolution of cortical bone using MRI is inferior. CT scan of the lung is the  modality of choice for evaluating patients with sarcoma for possible lung  metastases. Abdominal CT scan is invaluable in surveying for a primary tumor in  patients who present with bone metastases. For tumors involving the pelvis and  sacrum, CT can help elucidate the extent of bone involvement (Figure 6–6). In  cases involving a soft-tissue lesion, MRI is far superior to CT unless there is  a heavily calcified process</blockquote>

Verification: Hathara warak wissa keeyada? (Hathara wadi karanna 20)

Top Bottom