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Imaging Features of Lymphoepithelial-Like Carcinoma of the Salivary Glands

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机构: [1]Zhuhai Hospital, Guangdong Province Hospital of Traditional Chinese Medicine, Zhuhai, China
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关键词: lymphoepithelial-like carcinoma salivary glands computed tomography magnetic resonance imaging

摘要:
Objective: Lymphoepithelial-like carcinoma of the salivary glands (LELCSG) is a rare tumour of unknown aetiology. No studies have reported the imaging features of primary LELCSG. Methods: The clinical information and imaging features of eight patients with LELCSG were reviewed. Computed tomography (n = 4 patients) and magnetic resonance imaging (n = 4 patients) features were analysed by two radiologists to identify the location, number, size, shape, boundary, signal intensity and enhancement of LELCSG. Results: The study included four women and four men, and the mean size of the tumours was 32.88 +/- 3.41 mm (range, 27-38 mm). The tumours affected the parotid gland in six cases and the submandibular gland in two cases. The eight cases were evaluated by radiologists. All tumours were lobulated; three had clear edges and five had blurred edges. There was no necrosis in six tumours, while two tumours exhibited slight necrosis without bleeding. All eight tumours showed multiple nodular changes and extensive fusion. Four tumours with magnetic resonance imaging (MRI) were isointense or slightly hyperintense on T1-weighted imaging (T1WI) and obvious homogeneous enhancement on contrasted enhanced T1WI scan, while slightly hyperintense on T2-weighted imaging (T2WI). The other four lesions were isodense on computed tomography (CT) scan. The degree of enhancement varied among the eight tumours. The necrotic zones of the eight tumours did not exhibit any enhancement. Conclusions: LELCSG is a lobulated, multi-nodular tumour, with some fused nodules. LELCSG lesions showed isointensity or slight hyperintensity on T1WI MRI, slight hyperintensity on T2WI MRI and isodense on CT scan. Larger tumours may exhibit some necrosis, but the necrotic cysts were relatively rare. Uniform enhancement was observed in non-necrotic areas on enhanced CT and MRI scan. The multi-nodular feature may be valuable for diagnosis.

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出版当年[2021]版:
大类 | 4 区 医学
小类 | 4 区 耳鼻喉科学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 耳鼻喉科学
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出版当年[2020]版:
Q3 OTORHINOLARYNGOLOGY
最新[2023]版:
Q3 OTORHINOLARYNGOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2020版] 出版当年五年平均 出版前一年[2019版] 出版后一年[2021版]

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第一作者机构: [1]Zhuhai Hospital, Guangdong Province Hospital of Traditional Chinese Medicine, Zhuhai, China
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通讯机构: [1]Zhuhai Hospital, Guangdong Province Hospital of Traditional Chinese Medicine, Zhuhai, China [*1]Zhuhai Hospital, Guangdong Province Hospital of Traditional Chinese Medicine, 53 Jingle Road, Jida, Zhuhai City 510120, China.
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