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A 60-year-old male was admitted to the hospital with abdominal pain and diagnosed with microsatellite instability-high (MSI-H)sigmoid colon cancer. Computed tomography revealed an obstructive mass in the sigmoid colon along with swelling of the para-aortic lymph nodes. The patient initially underwent loop transverse colostomy, followed by treatment with the immune checkpoint inhibitor(ICI)pembrolizumab. After 5 courses of ICI, the tumor significantly shrank; therefore, radical resection was performed. The patient has been monitored without adjuvant chemotherapy, and recurrence has not occurred after 1 year. This case shows that ICI may be an effective rescue treatment for colorectal cancer patients with unresectable distant metastasis.
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Dig Dis Sci
September 2025
Department of Gastrointestinal Surgery, Meizhou People's Hospital, Meizhou Academy of Medical Sciences, No. 63, Xinfeng Road, Meijiang District, Meizhou, 514031, Guangdong, China.
Ann Surg Oncol
September 2025
Department of Colorectal Surgery, Tianjin Union Medical Center, The First Affiliated Hospital of Nankai University, Tianjin, China.
Background: The ligation of the inferior mesenteric artery (IMA) is the primary procedure during surgeries of the left colon, sigmoid colon, and rectal cancer. Despite the ongoing debate on high or low ligation of the IMA, high ligation (HL) is now preferred by most of the surgeons. However, there is still a lack of consistency in the exact position of HL among surgical videos or introductions presented by different teams, causing confusion to new learners.
View Article and Find Full Text PDFFront Oncol
August 2025
Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University Yuexi Hospital, Xinyi, China.
Situs inversus totalis (SIT) is a rare congenital condition characterized by a complete reversal of the internal organ arrangement, presenting significant surgical challenges. While previous cases of colorectal cancer in SIT patients have been reported, cases involving sigmoid colon cancer are sporadic. Here, we present the case of a 68-year-old female with sigmoid colon cancer and SIT.
View Article and Find Full Text PDFIntern Med
September 2025
Department of Endoscopy, Tanaka Clinic, Japan.
A woman in her 60s developed abdominal pain, diarrhea, and hematochezia two days after taking a single 40 mg dose of baloxavir marboxil for influenza A. Colonoscopy on day 10 revealed mucosal edema and longitudinal ulcerations confined to the sigmoid colon. A histopathological examination showed neutrophilic infiltration, crypt epithelial detachment, degeneration, and atrophy, consistent with ischemic colitis.
View Article and Find Full Text PDFWorld J Radiol
August 2025
Stricto Sensu Postgraduate Program in Health Sciences/Surgery Service, Pontifical Catholic University of Campinas (PUC-Campinas) School of Life Sciences, Campinas 13060-604, São Paulo, Brazil.
Background: Ultrasound (US) can be a valuable tool for assessing arthritis associated with inflammatory bowel disease (IBD), especially in cases of psoriatic disease. The clinical case reviewed in this article addresses an exploratory finding that evaluates the effects of immunobiological treatments on dactylitis and IBD with the use of US techniques.
Case Summary: A 40-year-old Caucasian woman with psoriatic arthritis (PsA) and ulcerative colitis (UC) reported experiencing finger pain, knee arthritis, and bloody diarrhea.