下颌下腺和咽旁间隙同时存在 FDG 摄取和非 FDG 摄取的多形性腺瘤。
Concurrent FDG-Avid and Non-FDG-Avid Pleomorphic Adenomas in the Submandibular Gland and Parapharyngeal Space.
机构信息
From the Department of Radiology, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, South Korea.
Department of Pathology, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, South Korea.
出版信息
Clin Nucl Med. 2023 Mar 1;48(3):e138-e140. doi: 10.1097/RLU.0000000000004514. Epub 2023 Jan 10.
Pleomorphic adenoma is the most common benign tumor of salivary glands. Here we present an interesting case of concurrent pleomorphic adenomas in the parapharyngeal space and submandibular gland. The tumors showed stark differences in the imaging findings on FDG PET/CT and MRI. Pathology confirmed the diagnosis of pleomorphic adenomas with the different composition of the cellular component and chondromyxoid stroma. This case suggests that the difference in cellularity of pleomorphic adenomas can affect FDG uptake and diffusion-weighted MRI-derived apparent diffusion coefficient values.
多形性腺瘤是唾液腺最常见的良性肿瘤。在此，我们报告一例咽旁间隙和下颌下腺同时发生多形性腺瘤的病例。肿瘤在 FDG PET/CT 和 MRI 的影像学表现有明显差异。病理证实为多形性腺瘤，其细胞成分和软骨黏液样基质的组成不同。本病例提示多形性腺瘤细胞密度的差异可能影响 FDG 摄取和弥散加权 MRI 衍生的表观弥散系数值。
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