Year 2024 / Volume 116 / Number 3
Letter
Pseudo-submucosal tumor in the colon: seeing is believing

177-178

DOI: 10.17235/reed.2023.9773/2023

Ding-Guo Zhang, Qiu-Ling Lin, Lisheng Wang,

Abstract
A 65-year-old woman was admitted to our hospital with complaints of lower abdominal pain. Her physical examination was unremarkable. The results of routine laboratory testing were within the normal limits. In addition, abdominal CT was normal. Colonoscopy showed a cecum submucosal tumor with a pale yellow surface. Endoscopic ultrasound revealed homogeneous hypoechoic lesions originated from submucosal layer. ESD was subsequently performed to remove the submucosal lesion. During the ESD procedure, fecal outflowed from appendix opening . Yellow fecal-like material was visible after submucosal incision. The trap electrocut surface uplift showed more fecal attachment on the lamina propria surface, and myolayer integrity after clean the fecal (Fig1c), The final pathology of the surface bulge suggested hyperplasia (Fig1d). Patients were discharged with relieved lower abdominal pain. The final diagnosis was submucosal fecalith mimicking a submucosal tumor, eventually leads to chronic appendicitis. Common causes of cecal submucosal tumor include neuroendocrine tumors, lipomas, etc. There was few report about fecalith mimicking a submucosal tumor. ERTA is currently an effective endoscopic method for treating appendicitis combined with fecalith blockage. To our knowledge, this is the first report on a case of cecum submucosal fecalith mimicking a submucosal tumor and was successfully removed using endoscopy.
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References
[1]Liu BR,Ma X,Feng J,et al. Endoscopic retrograde appendicitis therapy (ERAT) : a multicenter retrospective study in China.[J] .Surg Endosc, 2015, 29: 905-9.
[2]Bekki Tomoaki,Fukuda Toshikatsu,Moriuchi Toshiyuki,et al. Appendicitis with submucosal fecalith mimicking a submucosal tumor: a case report.[J] .Surg Case Rep, 2021, 7: 105.
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Zhang D, Lin Q, Wang L. Pseudo-submucosal tumor in the colon: seeing is believing. 9773/2023


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Publication history

Received: 06/06/2023

Accepted: 11/06/2023

Online First: 22/06/2023

Published: 04/03/2024

Article Online First time: 16 days

Article editing time: 272 days


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