皮下脂膜炎样T细胞淋巴瘤18F-FDG PET/CT影像分析并文献复习（附4例报道）

Imaging results of 18F-FDG PET/CT in patients with subcutaneous panniculitis-like T cell lymphoma: 4 cases report and review of related literature

    摘要
  • 摘要:
    目的 总结皮下脂膜炎样T细胞淋巴瘤（SPTCL）的18F-FDG PET/CT影像学特点，探讨18F-FDG PET/CT在SPTCL中的应用价值。
    方法 回顾性分析4例经病理证实的SPTCL患者的影像学表现，观察病灶的形态、分布范围、代谢信息，结合其临床、病理特点复习相关文献。
    结果 4例患者的18F-FDG PET/CT影像学表现：病灶形态不规则，密度增高，相应部位18F-FDG摄取增高。病变累及范围广泛，面颈（2例）、躯干（4例）、四肢（4例）、腹膜和盆腔脂肪组织（2例）均可受累。半定量分析结果：皮下脂肪病灶最大标准化摄取值为3.5~14.6。
    结论 SPTCL病变分布广泛，18F-FDG摄取差异较大，但18F-FDG PET/CT显像有利于整体评估SPTCL患者病情，在疗效监测方面具有重要作用。

     

    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.

     

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