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Merkel细胞癌(Merkel cell carcinoma,MCC)是一种原发于皮肤、罕见的、具有高度侵袭性的神经内分泌恶性肿瘤,其好发于头颈部、四肢躯干的皮肤及浅表皮下组织。高发人群为老年人、免疫功能低下的个体及长期服用免疫抑制剂的患者。紫外线暴露、免疫功能低下和(或)免疫抑制状态是MCC发生的明确危险因素[1]。本例患者缺乏明确的相关临床病史,较难与淋巴瘤、活动性淋巴结结核相鉴别,经活体组织病理学检查结果确诊时已处于MCC晚期,但在125I粒子植入局部治疗后取得了良好的局部控制效果。特此报道该病例,旨在提高临床医师对晚期MCC 18F-FDG PET/CT显像的认识,并为125I粒子植入局部治疗晚期MCC患者提供有效依据。
125I粒子植入局部治疗晚期Merkel细胞癌患者1例并文献复习
125I seed implantation for local treatment of advanced Merkel cell carcinoma: a case report and literature review
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摘要: Merkel细胞癌(MCC)是一种原发于皮肤、罕见的、具有高度侵袭性的神经内分泌恶性肿瘤。笔者报道了1例经125I粒子植入局部治疗的晚期MCC患者,通过治疗前后的18F-FDG PET/CT显像评估其疗效,分别从临床症状、影像表现、治疗经过并结合相关文献报道分析MCC的特点,旨在加深临床医师对MCC的认识并为125I粒子植入局部治疗晚期MCC患者提供依据。Abstract: Merkel cell carcinoma (MCC) is a rare and highly aggressive neuroendocrine malignant tumor originating from the skin. The author reported a patient with advanced MCC whose local lesions were treated with 125I seed implantation, evaluated the therapeutic efficacy by comparing 18F-FDG PET/CT images before and after treatment. The features of MCC were analyzed from clinical symptoms, imaging findings, treatment process and relevant literature reports, in order to deepen clinicians' understanding of MCC and provide a basis for the local use of 125I seed implantation in patients with advanced MCC.
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[1] 黄高翔, 钟玲玲, 陈颢, 等. 胸膜转移性Merkel细胞多瘤病毒阳性Merkel细胞癌伴癌性胸腔积液一例[J]. 中华病理学杂志, 2021, 50(2): 143−146. DOI: 10.3760/cma.j.cn112151-20200505-00358.
Huang GX, Zhong LL, Chen H, et al. Merkel cell polyomavirus positive Merkel cell carcinoma metastatic to pleura and pleural effusions with unknown primary site: report of a case[J]. Chin J Pathol, 2021, 50(2): 143−146. DOI: 10.3760/cma.j.cn112151-20200505-00358.[2] Bichakjian CK, Olencki T, Aasi SZ, et al. Merkel cell carcinoma, version 1.2018, NCCN clinical practice guidelines in oncology[J]. J Natl Compr Canc Netw, 2018, 16(6): 742−774. DOI: 10.6004/jnccn.2018.0055. [3] Harms KL, Healy MA, Nghiem P, et al. Analysis of prognostic factors from 9387 Merkel cell carcinoma cases forms the basis for the new 8th edition AJCC staging system[J]. Ann Surg Oncol, 2016, 23(11): 3564−3571. DOI: 10.1245/s10434-016-5266-4. [4] Li FG, Wang LP, Zhang YX, et al. A retrospective study on using a novel single needle cone puncture approach for the iodine-125 seed brachytherapy in treating patients with thoracic malignancy[J/OL]. Front Oncol, 2021, 11: 640131[2022-08-18]. https://www.frontiersin.org/articles/10.3389/fonc.2021.640131/full. DOI: 10.3389/fonc.2021.640131. [5] Peng S, Song RY, Lin QG, et al. A robust oxygen microbubble radiosensitizer for iodine-125 brachytherapy[J/OL]. Adv Sci (Weinh), 2021, 8(7): 2002567[2022-08-18]. https://onlinelibrary.wiley.com/doi/10.1002/advs.202002567. DOI:10.1002/advs.202002567. [6] Wang BH, Qiu B, Wu LL, et al. Efficacy and safety of 3D printing coplanar template-assisted iodine-125 seed implantation as palliative treatment for inoperable pancreatic cancer[J]. J Contemp Brachytherapy, 2022, 14(2): 140−147. DOI: 10.5114/jcb.2022.114990. [7] Zhang ML, Chu CK, Huang LY, et al. CT-MR image fusion for post-implant dosimetry analysis in brain tumor seed implantation—a preliminary study[J]. Dis Markers, 2022, 2022: 6310262. DOI: 10.1155/2022/6310262. [8] 高琰, 陈名华, 王琦, 等. 皮肤Merkel细胞癌伴转移1例[J]. 皮肤科学通报, 2019, 36(1): 98−100.
Gao Y, Chen MH, Wang Q, et al. A case of cutaneous Merkel cell carcinoma with metastasis[J]. Dermatol Bull, 2019, 36(1): 98−100.