Uncommon neoplasms of the anal canal are associated with significant diagnostic dilemma in clinical practice and a high index of suspicion and pathologic expertise is needed. The incidence is likely to increase, particularly of small, incidental lesions found because of use of more frequent colonoscopy and high-definition MRI. Generally treatment follows that of the same histologic subtype in other anatomic location. Surgical intervention is the cornerstone for cure in early/localized disease; however, removal of the anal canal is associated with significant morbidities and quality of life issues. A centralized global registry/database established under the auspices of the International Rare Care Initiative collaboration would be useful.
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http://dx.doi.org/10.1016/j.soc.2016.07.009 | DOI Listing |
Int J Radiat Oncol Biol Phys
January 2025
Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA. Electronic address:
Purpose/objective(s): While definitive chemoradiation (CRT) with 5-FU/MMC remains the standard of care for localized anal cancer, treatment is associated with significant acute and late toxicity. Proton radiation therapy (RT) may potentially reduce such toxicity. Here, we assess the long-term outcomes of anal cancer patients treated with CRT using proton RT in two prospective pilot studies.
View Article and Find Full Text PDFClin Gastroenterol Hepatol
January 2025
Inflammatory Bowel Disease Center, Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville FL. Electronic address:
Description: The aim of this American Gastroenterological Association (AGA) Clinical Practice Update (CPU) is to provide best practice advice (BPA) statements for gastroenterologists and other health care providers who provide care to patients with inflammatory bowel disease (IBD). The focus is on IBD-specific screenings (excluding colorectal cancer screening, which is discussed separately) and vaccinations. We provide guidance to ensure that patients are up to date with the disease-specific cancer screenings, vaccinations, as well as advice for mental health and general wellbeing.
View Article and Find Full Text PDFJ Infect Chemother
January 2025
AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan.
Objective: This study investigated the efficacy and safety of electrocautery ablation for high-grade squamous intraepithelial lesions (HSILs) in men who have sex with men (MSM) including people with human immunodeficiency virus, using comprehensive biopsy with high-resolution anoscopy (HRA).
Methods: This single-arm, open-label pilot study included 20 MSM with HSIL who were treated with electrocautery ablation. The participants were recruited from the National Center for Global Health and Medicine and followed up using HRA with a comprehensive biopsy approach at 3- and 6-months post-ablation.
Clin J Gastroenterol
January 2025
Division of Endoscopy, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi-Cho, Sunto-Gun, Shizuoka, 411-8777, Japan.
Anal canal cancer (ACC) is a rare yet noteworthy malignancy that is strongly associated with high-risk human papillomaviruses (HPVs). This case report highlights the diagnostic utility of endocytoscopy (EC) in distinguishing high-grade squamous intraepithelial lesions (HSILs) from low-grade lesions (LSILs) in a 57-year-old male presenting with hematochezia. Traditional magnifying endoscopy was inconclusive; however, EC provided detailed visualization of cellular and vascular changes, facilitating a diagnosis of HPV-associated HSIL or carcinoma in situ.
View Article and Find Full Text PDFCancer Diagn Progn
January 2025
Department of Gastroenterological Surgery, Osaka International Medical and Science Center, Osaka Keisatsu Hospital, Osaka, Japan.
Background/aim: Perianal Paget's disease (PPD) is an intraepithelial invasion of the perianal skin that is frequently associated with anorectal carcinoma. Rectal canal carcinoma with Pagetoid spread (PS) is a relatively rare disease, and few reports on its outcomes are available. The relatively rare nature of this disease makes the development of treatment recommendations difficult.
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