Abstract
Background
No residual disease (NRD) can be found in the specimen after endoscopic resection (ER) of biopsy-proven gastric neoplasm. This study aimed to evaluate the endoscopic and pathologic characteristics of patients with NRD and identify the cause and long-term prognosis.
Methods
Medical records of patients who underwent ER for biopsy-proven gastric neoplasms at a single tertiary hospital between January 2005 and November 2014 were retrospectively reviewed. Patients whose post-ER histology was revealed as NRD were included. Overall incidence, clinicopathologic characteristics, cause, and long-term prognosis were analyzed.
Results
NRD was detected in 143 (3.2 %) of 4401 cases of gastric neoplasms treated with ER. Mean endoscopic size of the initial lesion was 8.15 ± 6.64 mm; in 93 cases (65.0 %), the lesion was located in the lower third of the stomach. Initial pathologic diagnosis was as follows: adenoma (n = 110), carcinoma (n = 29), and atypical gland (n = 4). The causes of NRD were minute lesions removed by biopsy in 140 patients, pathologic misdiagnoses in two, and localization error in one. Local recurrence was detected in five patients (3.6 %) with minute lesions during follow-up and treated with argon plasma coagulation (n = 4) or re-ER (n = 1). Synchronous (n = 5, 3.6 %) and metachronous gastric lesions (n = 6, 4.3 %) were also detected during follow-up.
Conclusions
The main cause of NRD was minute lesions which might be completely removed by initial diagnostic biopsy. These cases showed a minimal rate of local recurrence and synchronous or metachronous gastric neoplasms. Careful follow-up is also mandatory for detection of residual disease.
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Acknowledgments
This work was supported by a Grant from the Liver Research Institute, Seoul National University College of Medicine.
Disclosures
Drs. Ji Min Choi, Sang Gyun Kim, Hyo-Joon Yang, Joo Hyun Lim, Jeongmin Choi, Jong Pil Im, Joo Sung Kim, Woo Ho Kim, and Hyun Chae Jung have no conflicts of interest or financial ties to disclose.
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Choi, J.M., Kim, S.G., Yang, HJ. et al. Clinical outcomes of no residual disease in the specimen after endoscopic resection for gastric neoplasms. Surg Endosc 30, 610–618 (2016). https://doi.org/10.1007/s00464-015-4248-0
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DOI: https://doi.org/10.1007/s00464-015-4248-0