Clinical Endoscopy

Tetsuo Kimura

2 Articles

Twin Rectal Tonsils Mimicking Carcinoid or Mucosa-Associated Lymphoid Tissue Lymphoma: Masanori Takehara, Naoki Muguruma, Shinji Kitamura, Tetsuo Kimura, Koichi Okamoto, Hiroshi Miyamoto, Yoshimi Bando, Tetsuji Takayama; Clin Endosc 2017;50(5):500-503. Published online February 28, 2017; DOI: https://doi.org/10.5946/ce.2016.157

The rectal tonsil is a rare polypoid lesion exclusively found in the rectum and is considered a reactive proliferation of the lymphoid tissue. Although this lesion is benign, we recommend that it should be differentiated from carcinoid or polypoid type of mucosaassociated lymphoid tissue (MALT) lymphomas, based on gross findings. In this case report, we describe a case of rectal lesions with a unique appearance in a 41-year-old man. Colonoscopy revealed two 5-mm-sized nodules located opposite from each other on the left and right sides of the lower rectum. Endoscopic mucosal resection was conducted. Histopathologically, both lesions were mainly located in the submucosa and consisted of prominent lymphoid follicles with germinal centers of various sizes. No immunoreactivity of Bcl-2 was seen in the germinal centers. Immunohistochemical staining for kappa and lambda light chains revealed a polyclonal pattern. Therefore, these lesions were diagnosed as rectal tonsils.

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Long-term Prognosis of Localized Lymphoid Hyperplasia of the Rectum
Ji Taek Hong, Eun Ran Kim, Sung-Wook Park, Ji Won Kim, Sung Noh Hong, Dong Kyung Chang, Young-Ho Kim, Jun Hun Cho
Gut and Liver.2021; 15(1): 77. CrossRef
Normal gastrointestinal tract inflammatory cells and review of select benign hematolymphoid proliferations
Jennifer Y. Ju, Edward B. Stelow, Elizabeth L. Courville
Seminars in Diagnostic Pathology.2021; 38(4): 6. CrossRef

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Endoscopic Management of Nonvariceal Upper Gastrointestinal Bleeding: State of the Art: Naoki Muguruma, Shinji Kitamura, Tetsuo Kimura, Hiroshi Miyamoto, Tetsuji Takayama; Clin Endosc 2015;48(2):96-101. Published online March 27, 2015; DOI: https://doi.org/10.5946/ce.2015.48.2.96

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Nonvariceal upper gastrointestinal (GI) bleeding is one of the most common reasons for hospitalization and a major cause of morbidity and mortality worldwide. Recently developed endoscopic devices and supporting apparatuses can achieve endoscopic hemostasis with greater safety and efficiency. With these advancements in technology and technique, gastroenterologists should have no concerns regarding the management of acute upper GI bleeding, provided that they are well prepared and trained. However, when endoscopic hemostasis fails, endoscopy should not be continued. Rather, endoscopists should refer patients to radiologists and surgeons without any delay for evaluation regarding the appropriateness of emergency interventional radiology or surgery.

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Endoscopic projection of the gastroduodenal artery: Anatomical implications for bleeding management
P. Wilhelm, D. Stierle, J. Rolinger, C. Falch, U. Drews, A. Kirschniak
Annals of Anatomy - Anatomischer Anzeiger.2020; 232: 151560. CrossRef
CTA As an Adjuvant Tool for Acute Intra-abdominal or Gastrointestinal Bleeding
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Techniques in Vascular and Interventional Radiology.2017; 20(4): 248. CrossRef
Clinical Outcomes of Endoscopic Hemostasis for Bleeding in Patients with Unresectable Advanced Gastric Cancer
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Transcatheter Arterial Embolization for Gastrointestinal Bleeding Secondary to Gastrointestinal Lymphoma
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Ulcères gastroduodénaux hémorragiques : étude prospective observationnelle multicentrique en Côte-d’Ivoire
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