Case report: a precancerous lesion associated with HPV in the anal canal diagnosed by magnifying endoscopy with narrow-band imaging and resected by endoscopic submucosal dissection
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Li, Hengcun
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Capital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R ChinaCapital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R China
Li, Hengcun
[1
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Sun, Xiujing
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Capital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R ChinaCapital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R China
Sun, Xiujing
[1
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Yang, Ling
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Beijing Fengtai Hosp, Dept Gastroenterol, Beijing, Peoples R ChinaCapital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R China
Yang, Ling
[2
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Xu, Rui
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Capital Med Univ, Beijing Friendship Hosp, Dept Pathol, Beijing, Peoples R ChinaCapital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R China
Xu, Rui
[3
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Li, Peng
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Capital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R ChinaCapital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R China
Li, Peng
[1
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机构:
[1] Capital Med Univ, Beijing Friendship Hosp, Natl Clin Res Ctr Digest Dis, Beijing Digest Dis Ctr,Dept Gastroenterol,Beijing, Beijing, Peoples R China
[2] Beijing Fengtai Hosp, Dept Gastroenterol, Beijing, Peoples R China
[3] Capital Med Univ, Beijing Friendship Hosp, Dept Pathol, Beijing, Peoples R China
Although anal cancer remains rarely diagnosed in the world, its frequency is rising, especially in high-risk groups. The prognosis of advanced anal cancer is poor. However, there are still few reports on the endoscopic diagnosis and treatment of early anal cancer and its precancerous lesions. A 60-year-old woman was referred to our hospital for endoscopic treatment of a flat precancerous lesion in the anal canal, which was identified by narrow-band imaging (NBI) and confirmed by pathological examination in another hospital. The pathological results showed a high-grade squamous intraepithelial lesion (HSIL) in the biopsy specimen, and immunochemistry staining showed P16 positive, suggesting HPV infection. We performed pre-resection endoscopic examination for the patient. A lesion with a clear margin and tortuous dilated vessels was revealed under magnifying endoscopy with NBI (ME-NBI), which stayed unstained after iodine spraying. The lesion was successfully removed en bloc using ESD without complications, and the resected specimen was a low-grade squamous intraepithelial lesion (LSIL) with positive immunochemistry staining of P16. The patient underwent follow-up coloscopy a year after ESD, and the anal canal healed well with no suspicious lesions found. From this case, we can learn that ESD is safe and effective for curative resection of precancerous lesions of the anal canal.
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Kyoto Univ, Grad Sch Med, Dept Gastroenterol & Hepatol, Sakyo Ku, Kyoto, JapanKyoto Univ, Grad Sch Med, Dept Gastroenterol & Hepatol, Sakyo Ku, Kyoto, Japan
Horimatsu, T.
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Miyamoto, S.
Ezoe, Y.
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Kyoto Univ, Grad Sch Med, Dept Multidisciplinary Canc Treatment, Sakyo Ku, Kyoto, JapanKyoto Univ, Grad Sch Med, Dept Gastroenterol & Hepatol, Sakyo Ku, Kyoto, Japan
Ezoe, Y.
Muto, M.
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Kyoto Univ, Grad Sch Med, Dept Gastroenterol & Hepatol, Sakyo Ku, Kyoto, JapanKyoto Univ, Grad Sch Med, Dept Gastroenterol & Hepatol, Sakyo Ku, Kyoto, Japan
Muto, M.
Yoshizawa, A.
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Kyoto Univ, Grad Sch Med, Dept Diagnost Pathol, Sakyo Ku, Kyoto, JapanKyoto Univ, Grad Sch Med, Dept Gastroenterol & Hepatol, Sakyo Ku, Kyoto, Japan
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Sapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, JapanSapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, Japan
Yamamoto, Keisuke
Okuni, Tsuyoshi
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Sapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, JapanSapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, Japan
Okuni, Tsuyoshi
Kurose, Makoto
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Sapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, JapanSapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, Japan
Kurose, Makoto
Akiyama, Yukinori
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Sapporo Med Univ, Dept Neurosurg, Sch Med, Sapporo, JapanSapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, Japan
Akiyama, Yukinori
Takano, Kenichi
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Sapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, JapanSapporo Med Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Sapporo, Japan
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Southern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
Zhang, Qiang
Lian, Zhou Yang
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Guangdong Acad Med Sci, Guangdong Gen Hosp, Dept Radiol, Guangzhou, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
Lian, Zhou Yang
Chen, Zhen Yu
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Southern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
Chen, Zhen Yu
Wang, Zhen
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Southern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
Wang, Zhen
Chen, Chu Di
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Southern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
Chen, Chu Di
An, Sheng Li
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Southern Med Univ, Sch Publ Hlth & Trop Med, Dept Biostat, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
An, Sheng Li
Gong, Wei
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Southern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
Gong, Wei
Zhi, Fa Chao
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Southern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China
Zhi, Fa Chao
Liu, Si De
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Southern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R ChinaSouthern Med Univ, Nanfang Hosp, Dept Gastroenterol, Guangzhou 510000, Guangdong, Peoples R China