Journal article
Presentation, treatment, and prognosis of colorectal adenosquamous carcinoma: A contemporary analysis of the surveillance, epidemiology, and end results database
The American journal of surgery, Vol.223(5), pp.957-962
2021
DOI: 10.1016/j.amjsurg.2021.09.004
PMID: 34530984
Abstract
Colorectal adenosquamous carcinoma (ASC) represents <0.1% of colorectal cancers. Due to its rarity, there is paucity of data regarding its prognosis and treatment compared to other colorectal cancers. The aim of the study was to evaluate presentation, treatment and prognosis of colorectal ASC in comparison to adenocarcinoma (AC) and squamous cell carcinoma (SCC).
Adult patients diagnosed with colorectal AC, SCC, and ASC between 2000 and 2017 were identified using Surveillance, Epidemiology, and End Results database.
Among the 446,132 patients diagnosed with colorectal cancer, 0.06% had ASC and were more likely to present with higher T stage and distant metastases compared to AC and SCC (p < 0.001). Major surgery was the primary treatment for colonic ASC, while for rectal ASC, chemotherapy and/or radiation were mainly utilized. Localized and distant colonic ASC had an unadjusted 5-year cause-specific survival that was worse than AC, while rectal ASC had the worst survival across all stages.
Colorectal ASC usually present with advanced stage and have overall worse prognosis. Standardization of treatment strategies may improve survival in colorectal ASC.
•Colorectal adenosquamous carcinoma is very rare among colorectal cancers with paucity of data regarding its natural history and prognosis.•Patients with ASC are more likely to present with more advanced stages and distant metastases compared to patients with Adenocarcinoma and Squamous cell carcinoma.•In the colon, major surgery was the mainstay of treatment for ASC, while in the rectum surgery chemotherapy and/or radiation were utilized in different combinations.•On multivariable analysis, Adenosquamous cancer was associated with poor prognosis compared to Adenocarcinoma.
Details
- Title: Subtitle
- Presentation, treatment, and prognosis of colorectal adenosquamous carcinoma: A contemporary analysis of the surveillance, epidemiology, and end results database
- Creators
- Adil H Khan - Raleigh General Hospital, 1710 Harper Road, Beckley, WV, 25801, USAXiang Gao - Department of Surgery, University of Iowa, 200 Hawkins Dr., Iowa City, IA, 52242, USAPaolo Goffredo - Department of Surgery, University of Iowa, 200 Hawkins Dr., Iowa City, IA, 52242, USAAmanda R Kahl - Department of Epidemiology, University of Iowa College of Public Health, 145 N. Riverside Dr., Iowa City, IA, 52242, USAAlan F Utria - Department of Surgery, University of Iowa, 200 Hawkins Dr., Iowa City, IA, 52242, USAMary E Charlton - Department of Epidemiology, University of Iowa College of Public Health, 145 N. Riverside Dr., Iowa City, IA, 52242, USASajida Ahad - Department of Surgery, University of Iowa, 200 Hawkins Dr., Iowa City, IA, 52242, USAImran Hassan - Department of Surgery, University of Iowa, 200 Hawkins Dr., Iowa City, IA, 52242, USA
- Resource Type
- Journal article
- Publication Details
- The American journal of surgery, Vol.223(5), pp.957-962
- DOI
- 10.1016/j.amjsurg.2021.09.004
- PMID
- 34530984
- NLM abbreviation
- Am J Surg
- ISSN
- 0002-9610
- eISSN
- 1879-1883
- Publisher
- Elsevier Inc
- Language
- English
- Date published
- 2021
- Academic Unit
- Epidemiology; Surgery
- Record Identifier
- 9984216624302771
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