We report a case of a 59-year-old man with testicular germ cell tumor who showed new hypermetabolic lesions at the left axillary lymph nodes on a post-treatment positron emission tomography-computed tomography (PET-CT) scan. The hypermetabolic lesions were found to be caused by an influenza vaccination 10 days prior to the PET-CT scan and disappeared without additional treatment. To date, he is alive with complete remission.
Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; False Positive Reactions ; Humans ; Influenza Vaccines/*administration & dosage/adverse effects ; Injections, Intramuscular ; Lymph Nodes/drug effects/*radiography/*radionuclide imaging ; Male ; Middle Aged ; *Positron-Emission Tomography ; Predictive Value of Tests ; Seminoma/*diagnosis/drug therapy/pathology/radiography/radionuclide imaging ; Testicular Neoplasms/*diagnosis/drug therapy/pathology/radiography/radionuclide imaging ; *Tomography, X-Ray Computed ; Treatment Outcome ; *Whole Body Imaging

We report the first observed case of Kimura's disease occurring during hemodialysis, involving the thoracic and abdominal lymph nodes, which spontaneously resolved nearly completely after two months. Early diagnosis and recognition of Kimura's disease may spare both the patient and doctor from the need for unnecessary invasive diagnostic procedures. Therefore, we emphasize that we need to have a high index of suspicion regarding Kimura's disease.
Abdomen ; Angiolymphoid Hyperplasia with Eosinophilia/diagnosis/*etiology ; Biopsy ; Diagnosis, Differential ; Follow-Up Studies ; Humans ; *Lymph Nodes/pathology/radiography/radionuclide imaging ; Male ; Middle Aged ; Remission, Spontaneous ; Renal Dialysis/*adverse effects ; Thorax ; Tomography, X-Ray Computed

The accurate staging of Hodgkin's disease (HD) and non-Hodgkin's lymphoma (NHL) is an important aspect of treatment. In this study, the authors undertook to prospectively evaluate the clinical value of 2- (fluorine-18) fluoro-2-deoxy-D-glucose position emission tomography (FDG-PET) for the staging of malignant lymphoma as compared with computed tomography and 67Ga scan. Thirty consecutive cases with biopsy-proven lymphoma (4 HD, 26 NHL) were examined by FDG-PET for the initial staging and the restaging work-up between September 2000 and April 2001. The FDG-PET and conventional study, including a CT of the neck, chest, abdomen, and of the pelvis, a bone scan, a 67Ga scan, and a bone marrow study were undertaken to investigate nodal/extranodal manifestations and bone marrow infiltration. In terms of the detection of nodal lymphoma manifestation, the sensitivities and specificities of the PET, CT, and 67Ga scan were determined to be 93.3%, 98.9%, and 25.8%, and 100%, 99.1%, and 99.8%, respectively. In terms of the detection of extranodal lymphoma manifestation, the sensitivities and specificities of the PET, CT, and 67Ga scan were 87.5%, 87.5%, and 37.5%, and 100%, 100%, and 100%, respectively. The FDG-PET proved to be very accurate for the staging of malignant lymphoma and superior to Ga-67 scan. Although the results of PET and CT were substantially comparable, both imaging studies were found to complement each other in some cases with respect to the evaluation of lymphomatous involvement.
Adult ; Aged ; Aged, 80 and over ; Bone and Bones/radionuclide imaging ; Comparative Study ; Female ; Fludeoxyglucose F 18/*diagnostic use ; Gallium Radioisotopes/*diagnostic use ; Human ; Lymph Nodes/pathology ; Lymphoma/*pathology/radiography/radionuclide imaging ; Male ; Middle Aged ; Neoplasm Staging ; Prospective Studies ; *Tomography, Emission-Computed ; *Tomography, X-Ray Computed