2024-03-28T14:21:00Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00027358
2023-11-16T02:57:10Z
499:508:509:2359
Lobectomy for subsegmental lymph node metastasis of unknown origin
Yamaguchi, Gaku
Uchida, Osamu
Ichinose, Shuji
Ikeda, Norihiko
open access
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
2-Fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET)
Primary unknown cancer
Subsegmental lymph node metastasis
We report a very rare case of resected subsegmental lymph node metastasis of unknown origin. Hilar (N1) lymph node metastasis of unknown origin has previously been reported, but intrapulmonary lymph node metastasis has not been reported to date. At this patient’s first visit to our hospital, an abnormal nodule was found on the upper lung lobe on a chest radiograph. After 4 years’ follow-up, the nodule vanished, but a tiny nodule had emerged. 2-Fluoro-2-deoxy-D-glucose positron-emission tomography (FDG-PET) computed tomography was performed, and abnormal accumulation was observed only in the newly emerged intrapulmonary nodule. Right upper lobectomy was performed and a metastatic subsegmental lymph node, but no primary lesion, was found. Our observations suggest that evanescence of a suspicious primary lesion indicates the possibility of metastasis. FDG-PET was useful in this case for detecting lymph node metastases and demonstrating that the primary and further metastatic lesions were absent.
Nagoya University Graduate School of Medicine, School of Medicine
2019-02
eng
departmental bulletin paper
VoR
https://doi.org/10.18999/nagjms.81.1.165
http://hdl.handle.net/2237/00029557
https://nagoya.repo.nii.ac.jp/records/27358
10.18999/nagjms.81.1.165
http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/811.html
2186-3326
0027-7622
Nagoya Journal of Medical Science
81
1
165
169
https://nagoya.repo.nii.ac.jp/record/27358/files/16_Yamaguchi.pdf
application/pdf
12.9 MB
2019-03-15