SPECT/CT in Localization of Sentinel Lymph Node of Skin Tumors

Objective  Sentinel node lymphoscintigraphy and biopsy is an essential procedure in theranostics of skin tumors.The aim of this study is to determine the role of SPECT/CT in localization of sentinel lymph node of skin tumors.  Methods  This study retrospectively reviewed the sentinel node lymphoscin...

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Main Authors: ZHU Shikun, ZHANG Shu, LUO Yaping
Format: Article
Language:zho
Published: Editorial Office of Medical Journal of Peking Union Medical College Hospital 2023-07-01
Series:Xiehe Yixue Zazhi
Subjects:
Online Access:https://xhyxzz.pumch.cn/en/article/doi/10.12290/xhyxzz.2023-0170
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author ZHU Shikun
ZHANG Shu
LUO Yaping
author_facet ZHU Shikun
ZHANG Shu
LUO Yaping
author_sort ZHU Shikun
collection DOAJ
description Objective  Sentinel node lymphoscintigraphy and biopsy is an essential procedure in theranostics of skin tumors.The aim of this study is to determine the role of SPECT/CT in localization of sentinel lymph node of skin tumors.  Methods  This study retrospectively reviewed the sentinel node lymphoscintigraphy and biopsy data in patients with skin tumors diagnosed in Peking Union Medical College Hospital from April 2019 to February 2023, and analyzed the role of SPECT/CT in sentinel lymphoscintigraphy.  Results  Thirty-seven patients were retrospectively enrolled.The primary skin tumor included melanoma (32 patients), squamous cell carcinoma (3 patients), and basal cell carcinoma (2 patients).The sentinel nodes localized in inguinal (23 patients), popliteal (2 patients), axilla (8 patients), trochlea (2 patients), and parotid/periauricular regions (2 patients).Sentinel lymph nodes were localized by SPECT/CT in 36 cases (one patient only underwent planar dynamic imaging).SPECT/CT detected multiple focus in the lymphatic drainage in 16 patients, and in 13 patients they were confirmed to be local retention of the tracer in the lymphatic duct instead of the sentinel lymph node, suggesting false positive uptake.Thirty-four patients underwent sentinel node biopsy 1-4 h after localization, and localization of the sentinel node was consistent with preoperative sentinel node lymphoscintigraphy.Sentinel node biopsy found nodal metastasis in 6 patients (all of them had melanoma in the foot or lower limb).  Conclusions  Sentinel node lymphoscintigraphy is an important step for localization before sentinel node biopsy.SPECT/CT can help improve the accuracy of localizing sentinel lymph node.
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spelling doaj.art-d0662ff2e24042d9a6b61f39ddf3c2822023-08-02T03:54:57ZzhoEditorial Office of Medical Journal of Peking Union Medical College HospitalXiehe Yixue Zazhi1674-90812023-07-0114479580110.12290/xhyxzz.2023-0170SPECT/CT in Localization of Sentinel Lymph Node of Skin TumorsZHU ShikunZHANG Shu0LUO YapingDepartment of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, ChinaObjective  Sentinel node lymphoscintigraphy and biopsy is an essential procedure in theranostics of skin tumors.The aim of this study is to determine the role of SPECT/CT in localization of sentinel lymph node of skin tumors.  Methods  This study retrospectively reviewed the sentinel node lymphoscintigraphy and biopsy data in patients with skin tumors diagnosed in Peking Union Medical College Hospital from April 2019 to February 2023, and analyzed the role of SPECT/CT in sentinel lymphoscintigraphy.  Results  Thirty-seven patients were retrospectively enrolled.The primary skin tumor included melanoma (32 patients), squamous cell carcinoma (3 patients), and basal cell carcinoma (2 patients).The sentinel nodes localized in inguinal (23 patients), popliteal (2 patients), axilla (8 patients), trochlea (2 patients), and parotid/periauricular regions (2 patients).Sentinel lymph nodes were localized by SPECT/CT in 36 cases (one patient only underwent planar dynamic imaging).SPECT/CT detected multiple focus in the lymphatic drainage in 16 patients, and in 13 patients they were confirmed to be local retention of the tracer in the lymphatic duct instead of the sentinel lymph node, suggesting false positive uptake.Thirty-four patients underwent sentinel node biopsy 1-4 h after localization, and localization of the sentinel node was consistent with preoperative sentinel node lymphoscintigraphy.Sentinel node biopsy found nodal metastasis in 6 patients (all of them had melanoma in the foot or lower limb).  Conclusions  Sentinel node lymphoscintigraphy is an important step for localization before sentinel node biopsy.SPECT/CT can help improve the accuracy of localizing sentinel lymph node.https://xhyxzz.pumch.cn/en/article/doi/10.12290/xhyxzz.2023-0170skin tumorsentinel lymph nodespect/ctdiagnosistreatment
spellingShingle ZHU Shikun
ZHANG Shu
LUO Yaping
SPECT/CT in Localization of Sentinel Lymph Node of Skin Tumors
Xiehe Yixue Zazhi
skin tumor
sentinel lymph node
spect/ct
diagnosis
treatment
title SPECT/CT in Localization of Sentinel Lymph Node of Skin Tumors
title_full SPECT/CT in Localization of Sentinel Lymph Node of Skin Tumors
title_fullStr SPECT/CT in Localization of Sentinel Lymph Node of Skin Tumors
title_full_unstemmed SPECT/CT in Localization of Sentinel Lymph Node of Skin Tumors
title_short SPECT/CT in Localization of Sentinel Lymph Node of Skin Tumors
title_sort spect ct in localization of sentinel lymph node of skin tumors
topic skin tumor
sentinel lymph node
spect/ct
diagnosis
treatment
url https://xhyxzz.pumch.cn/en/article/doi/10.12290/xhyxzz.2023-0170
work_keys_str_mv AT zhushikun spectctinlocalizationofsentinellymphnodeofskintumors
AT zhangshu spectctinlocalizationofsentinellymphnodeofskintumors
AT luoyaping spectctinlocalizationofsentinellymphnodeofskintumors