We present an 82-year-old male patient who underwent laparoscopic abdominal perineal rectal amputation and D3 lymph node dissection, including left inguinal lymph node dissection for anal canal carcinoma. Left inguinal lymph node metastasis was positive, and pT1bN2aM0, pStage Ⅲa was the final pathological diagnosis. He underwent 8 courses of capecitabine plus oxaliplatin therapy as adjuvant chemotherapy. He was examined without recurrence for 5 years postoperatively. However, he awared a perineal subcutaneous tumor and was transferred to our hospital for further examination and treatment 6 years postoperatively. Recurrence after anal canal carcinoma surgery was diagnosed based on a needle biopsy, and perineal subcutaneous tumor resection was performed. This is a rare case of late postoperative recurrence of anal canal carcinoma, which was detected due to a perineal subcutaneous tumor 6 years after surgery for anal canal carcinoma.
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J 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.
View Article and Find Full Text PDFPLoS One
December 2024
Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan.
Few studies have demonstrated the interplay between human immunodeficiency virus (HIV), anal human papillomavirus (HPV), and anal microbiota, especially in persons living with HIV who are men who have sex with men. We, therefore, explored these interrelationships in a cohort of persons living with HIV, mainly comprising men who have sex with men. HPV genotyping using a commercial genotyping kit and ThinPrep cytology interpreted by Bethesda systems was performed on samples from 291 patients.
View Article and Find Full Text PDFNeurogastroenterol Motil
December 2024
Department of Surgery, Anorectal Physiology Laboratory, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
Normal anal sensibility can be present in ARM patients diagnosed with all types of ARM after they have been treated with corrective surgery. Anal sensibility was better in those with a functional IAS. This means that the IAS, present in the distal end of the fistula, should be spared as much as possible to preserve anal sensibility.
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