start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=5
article-no=
start-page=e39466
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230525
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Collagenous Colitis in a Patient With Gastric Cancer Who Underwent Chemotherapy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Herein, we present a case of collagenous colitis in a patient who underwent chemotherapy for gastric cancer, comprising five cycles of S-1 plus oxaliplatin and trastuzumab, followed by five cycles of paclitaxel and ramucirumab and seven cycles of nivolumab. The subsequent initiation of trastuzumab deruxtecan chemotherapy led to the development of grade 3 diarrhea after the second cycle of treatment. Collagenous colitis was diagnosed via colonoscopy and biopsy. The patient's diarrhea improved following the cessation of lansoprazole. This case highlights the importance of considering collagenous colitis as a differential diagnosis, in addition to chemotherapy-induced colitis and immune-related adverse event (irAE) colitis, in patients with similar clinical presentations.
en-copyright=
kn-copyright=

en-aut-name=IwamuroMasaya
en-aut-sei=Iwamuro
en-aut-mei=Masaya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TanakaTakehiro
en-aut-sei=Tanaka
en-aut-mei=Takehiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KagawaShunsuke
en-aut-sei=Kagawa
en-aut-mei=Shunsuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=InooShoko
en-aut-sei=Inoo
en-aut-mei=Shoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=OtsukaMotoyuki
en-aut-sei=Otsuka
en-aut-mei=Motoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Department of Gastroenterology and Hepatology, Okayama University Hospital
kn-affil=

affil-num=2
en-affil=Department of Pathology, Okayama University Hospital
kn-affil=

affil-num=3
en-affil=Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=

affil-num=4
en-affil=Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=

affil-num=5
en-affil=Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=
en-keyword=immune checkpoint inhibitor
kn-keyword=immune checkpoint inhibitor
en-keyword=chemotherapy-induced diarrhea
kn-keyword=chemotherapy-induced diarrhea
en-keyword=immune-related adverse event colitis
kn-keyword=immune-related adverse event colitis
en-keyword=colonoscopy
kn-keyword=colonoscopy
en-keyword=collagenous colitis
kn-keyword=collagenous colitis
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=5
article-no=
start-page=e39366
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230523
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Laparoscopic Surgical Options as a Minimally Invasive Procedure for a Patient With Recurrent Postoperative Pain in Anterior Cutaneous Nerve Entrapment Syndrome: A Case Report
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This report presents a case of a 70-year-old woman who developed anterior cutaneous nerve entrapment syndrome (ACNES) three years ago and had an anterior cutaneous neurectomy in the left Th10 region. Postoperatively, the pain had improved entirely, but 10 weeks later, she developed a recurrence in the vicinity of the wound. The anterior intercostal nerve branch (Th10), located between the transversus abdominis and internal oblique muscles, was dissected laparoscopically six months after the initial surgery. There was no re-recurrence of pain for four months postoperatively. The postoperative recurrence of ACNES was refractory to various treatments, including surgical neurectomy, and is often difficult to treat. In cases in which transversus abdominis plane block is effective, laparoscopic neurectomy through an intraperitoneal approach may be effective, and minimally invasive laparoscopic treatment may be an effective surgical option for patients with recurrent and refractory ACNES who have a low pain threshold and are prone to prolonged complaints due to wound pain.
en-copyright=
kn-copyright=

en-aut-name=Kondo Sr.Yoshitaka
en-aut-sei=Kondo Sr.
en-aut-mei=Yoshitaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=FujiwaraToshiyoshi
en-aut-sei=Fujiwara
en-aut-mei=Toshiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=

affil-num=2
en-affil=Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=
en-keyword=anterior cutaneous nerve entrapment syndrome
kn-keyword=anterior cutaneous nerve entrapment syndrome
en-keyword=low pain threshold
kn-keyword=low pain threshold
en-keyword=intraperitoneal approach
kn-keyword=intraperitoneal approach
en-keyword=laparoscopic neurectomy
kn-keyword=laparoscopic neurectomy
en-keyword=refractory abdominal pain
kn-keyword=refractory abdominal pain
en-keyword=acnes
kn-keyword=acnes
END