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Anal carcinoma in giant anal condyloma, multidisciplinary approach necessary for optimal outcome:Two case reports and review of literature 被引量:2
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作者 Santosh Shenoy Murali Nittala Yazen Assaf 《World Journal of Gastrointestinal Oncology》 SCIE CAS 2019年第2期172-180,共9页
BACKGROUND Anal cancers are caused by human papilloma virus(HPV). Buschke-Lowenstein tumor also known as giant anal condyloma(GCA) is a variant of giant neglected anal tumors arising from warts caused by HPV infection... BACKGROUND Anal cancers are caused by human papilloma virus(HPV). Buschke-Lowenstein tumor also known as giant anal condyloma(GCA) is a variant of giant neglected anal tumors arising from warts caused by HPV infection. HPV are a family of double-stranded DNA viruses and primarily cause sexually transmitted disease of the genitalia and oropharyngeal mucosa. These tumors are slow growing;locally destructive large verrucous masses.CASE SUMMARY We present a series of two cases with large anal tumors harboring invasive cancers and highlight their presentation and management. Tumors with high risk HPV subtypes(HPV 16, 18, 31, 33) may progress into invasive squamous cell carcinoma(SCC). Untreated GCA can attain enormous size and extend into the pelvic organs and bony structures. Some tumors show malignant degeneration into SCC and are often difficult to diagnose given the large size of the tumors.Complete surgical excision with negative margins is the treatment of choice and necessary to prevent recurrence. This is often not feasible and leaves large surgical wounds with tissue defects with delay in healing and increases postoperative morbidity. Pelvic reconstructive techniques including muscle flaps and grafts are often necessary to close the defects. Human immunodeficiency virus and immunocompromised patients generally do poorly with standard treatments.CONCLUSION A multidisciplinary team of colorectal and plastic surgeons, medical and radiation oncologists along with combination treatment modalities are necessary when malignant transformation occurs in GCA, for optimal outcomes. 展开更多
关键词 SQUAMOUS cell carcinoma of ANUS Human PAPILLOMA virus infection giant anal condyloma Buschke-Lowenstein tumor Multidisciplinary treatment Case report
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