CT, MRI, and 18F-FDG PET/CT imaging features of seven cases of adult pancreatoblastoma

BMC Medical Imaging

Research

Zhiming Huang¹  Mengnan Wu¹  Jiongbin Lin²  Zhuangsheng Liu³  Ruoning Wang⁴ 

[1] Department of Radiology, Heyuan People’s Hospital, General Hospital Guangdong, 517000, Heyuan, China;Department of Radiology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China;Department of Radiology, The Sixth Affiliated Hospital, South China University of Technology, Nanhai People’s Hospital, 528200, Foshan, Guangdong, China;Minimally Invasive Centre, Tumour Hospital, Sun Yat-Sen University, 510060, Guangzhou, China;

关键词: Pancreatoblastoma;    CT;    MRI;    PET/CT;   

DOI  :  10.1186/s12880-022-00958-4

 received in 2022-06-13, accepted in 2022-12-22,  发布年份 2022

来源: Springer

【 摘 要 】

ObjectiveThis study mainly analysed the imaging data for seven cases of adult pancreatoblastoma (PB) and summarized additional imaging features of this disease based on a literature review, aiming to improve the understanding and diagnosis rate of this disease.Materials and methodsThe imaging data for seven adult patients pathologically diagnosed with adult PB were retrospectively analysed. Among the seven patients, six underwent computed tomography (CT) scans, two patients underwent abdominal magnetic resonance imaging (MRI), and five patients underwent 18F-FDG PET/CT.ResultsThe tumours were located in the head of the pancreas in three cases, in the tail of the pancreas in two cases, and in the gastric antrum and neck of the pancreas in one case. Six tumours showed blurred edges, and an incomplete envelope was observed in only two cases when enhanced, which showed extruded growth and cyst-solid masses; one tumour was a solid mass with ossification. Showing mild or significant enhancement in the arterial phase (AP) for six cases. In the MRI sequence, isointensity was found on suppressed T1-weighted imaging, and hyperintensity was noted on suppressed T2-weighted imaging in two cases, with significant enhancement. Pancreatic duct dilatation was found in four cases. Tumour 18F-FDG PET/CT imaging exhibited high uptake in five cases.ConclusionAdult PB involves a single tumour and commonly manifests as cystic-solid masses with blurred edges. Capsules are rare, ossification is an important feature, tumours can also present in ectopic pancreatic tissues, with mild or strengthening in the AP, and 18F-FDG uptake is high. These features are relatively specific characteristics in adult PB.

【 授权许可】

CC BY   
© The Author(s) 2022

【 图 表 】

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