الفهرس | Only 14 pages are availabe for public view |
Abstract among the people in all ages that requires physicians like others elsewhere in the body to determine the spread of the tumor in the body before treatment plan as well as the follow-up of the disease and find out how it is responding to treatment. Although the combined/hybrid device is considerably more expensive than other imaging modalities, it has the advantage of providing functional imaging obtained by PET, which depicts the spatial distribution of metabolic or biochemical activity in the body and correlating it with anatomic imaging obtained by CT scanning in the same session. This study aimed at studying the role of positron emission tomography-computed tomography (PET-CT) using 18F-FDG in head and neck cancer including the staging of primary head and neck cancer, detecting the sensitivity, specificity and accuracy of PET/CT in assessment of treatment response and detection of residual or recurrent disease as well as identifying carcinomas of unknown primary. The current study included 70 patients selected randomly among patients referred to diagnostic radiology and medical imaging department in Nasser Institute for Research and Treatment and Tanta university hospital and proven by biopsy to have head and neck cancers. All the patients were subjected to proper history taking: personal history, complaint of the patient which varied according to the site of malignancy (with neck swelling being the most common clinical presentation), past history of any systemic diseases or other previous malignancies, focused history on the current tumor (histopathological findings and previous. |