Abstract

Objective To summarize the 18F-FDG PET/CT findings of subcutaneous pannic ulitis-like T cell lymphoma(SPTCL) and to evaluate the clinical application of 18F-FDG PET/CT in patients with SPTCL. Methods Imaging results of four patients with pathologically proved SPTCL were analyzed retrospectively. The morphology, distribution, and metabolic information of the lesions were observed, and the relevant literatures were reviewed. Results 18F-FDG PET/CT imaging showed irregular shape, increased density, and increased 18F-FDG uptake in the corresponding site. A wide range of lesions were involved: 2 cases in the face and neck, 4 cases in the trunk, 4 cases in the extremities, and 2 cases in abdominal and pelvic cavity. Semiquantitative analysis showed that the maximum standardized uptake value of subcutaneous fat lesions ranged from 3.5 to 14.6. Conclusion SPTCL lesions are widely distributed with varied 18F-FDG uptake, but 18F-FDG PET/CT whole body imaging is conducive to the overall evaluation of SPTCL patients and plays an important role in monitoring the curative effect. Key words: Lymphoma, T-cell; Panniculitis; Positron emission tomography computed tomography; Lymphohistiocytosis, hemophagocytic

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