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Case Reports
Malignant disease
Nasal Cavity Metastasis From Colorectal Cancer Represents End-Stage Disease and Should Be Palliated
Stephen Hwang, Dedrick Kok Hong Chan, Fredrik Petersson, Ker-Kan Tan
Ann Coloproctol. 2020;36(2):119-121.   Published online November 13, 2019
DOI: https://doi.org/10.3393/ac.2019.03.04
  • 5,846 View
  • 112 Download
  • 5 Web of Science
  • 6 Citations
AbstractAbstract PDF
Nasal metastases from colorectal cancer is rare. The presentation of nasal metastases is often very similar to primary nasal sinus adenocarcinoma. A high index of suspicion is required, especially in patients who have had a previous history of colorectal carcinoma. Histology is ultimately required for diagnosis. We describe 2 cases of nasal metastases from colorectal carcinoma, and discuss the presentation, diagnosis and management of the case. Such metastatic disease ultimately represents end-stage malignancy, and patients should be palliated.

Citations

Citations to this article as recorded by  
  • Metastatic sinonasal malignancies of colorectal origin: Case report and comprehensive review of the literature
    Andrew J. Rothka, David Goldrich, Jessyka G. Lighthall
    Clinical Case Reports.2024;[Epub]     CrossRef
  • Surgical treatment for metastatic colorectal cancer
    Eun Jung Park, Seung Hyuk Baik
    Journal of the Korean Medical Association.2022; 65(9): 568.     CrossRef
  • Recent Advance in the Surgical Treatment of Metastatic Colorectal Cancer-An English Version
    Eun Jung Park, Seung Hyuk Baik
    Journal of the Anus, Rectum and Colon.2022; 6(4): 213.     CrossRef
  • A Very Rare Case of Metastases to the Nasal Cavity from Primary Rectal Adenocarcinoma
    Nishant Lohia, Harish Sadashiva, Sankalp Singh, Samir Agarwal, Vikas Gupta, Manoj Prashar, Gaurav Trivedi
    Clinical Cancer Investigation Journal.2022; 11(4): 1.     CrossRef
  • Major driver mutations are shared between sinonasal intestinal-type adenocarcinoma and the morphologically identical colorectal adenocarcinoma
    Sannia Sjöstedt, Ane Yde Schmidt, Filipe Garrett Vieira, Gro Linno Willemoe, Tina Klitmøller Agander, Caroline Olsen, Finn Cilius Nielsen, Christian von Buchwald
    Journal of Cancer Research and Clinical Oncology.2021; 147(4): 1019.     CrossRef
  • Rare case of metastatic adenocarcinoma to the maxillary sinus
    Apurwa Prasad, Taha Alrifai, Sumathi Vijaya Rangan, Jessica Garcia
    BMJ Case Reports.2021; 14(9): e244485.     CrossRef
Anal Adenocarcinoma Can Masquerade as Chronic Anal Fistula in Asians
Faith Qi-Hui Leong, Dedrick Kok Hong Chan, Ker-Kan Tan
Ann Coloproctol. 2019;35(1):47-49.   Published online December 3, 2018
DOI: https://doi.org/10.3393/ac.2018.03.15
  • 13,877 View
  • 129 Download
  • 6 Web of Science
  • 6 Citations
AbstractAbstract PDF
Purpose
Perianal adenocarcinoma arising from a chronic anorectal fistula is a rare condition for which the natural history and optimal management are not well established. For that reason, we conducted a retrospective analysis of 5 consecutive patients with a perianal adenocarcinoma arising from a chronic anorectal fistula managed at our institution from January 2014 to December 2015.
Methods
The patients were identified from a prospectively collected colorectal cancer database that included all patients managed for colorectal cancer at our institution.
Results
The median age at diagnosis was 64 years (range, 55–72 years). Magnetic resonance imaging (MRI) was the initial investigation for all patients and showed a hyperintense T2-weighted image. One patient underwent an abdominoperineal resection following neoadjuvant chemoradiotherapy and remained disease free during the 12-month follow-up. Three patients received neoadjuvant therapy with intent for surgery, but did not undergo surgery due to either worsening health or metastatic spread. One patient declined intervention. The median overall survival was 10.5 months (range, 2–19 months).
Conclusion
A high index of suspicion is required to make a clinical diagnosis of an anal adenocarcinoma arising from a chronic fistula. Histologic diagnosis must be achieved to confirm the diagnosis. Multimodal therapy with neoadjuvant chemoradiotherapy followed by abdominoperineal resection is the treatment of choice.

Citations

Citations to this article as recorded by  
  • Chronic fistula in ano associated with adenocarcinoma: a case report with a review of the literature
    Nalini Kanta Ghosh, Ashok Kumar
    Annals of Coloproctology.2024; 40(Suppl 1): S1.     CrossRef
  • Value of apparent diffusion coefficient on MRI for prediction of histopathological type in anal fistula cancer
    Shinji Yamamoto, Keiji Yonezawa, Naoki Fukata, Koji Takeshita, Makoto Kodama, Tetsuro Yamana, Shigeru Kiryu, Yukinori Okada
    Medicine.2023; 102(14): e33281.     CrossRef
  • Synchronous anal mucinous adenocarcinoma and anal tuberculosis presenting as chronic anal fistula: Challenging management
    Sarah Benammi, Youness Bakali, Mouna Alaoui
    Archive of Clinical Cases.2023; 10(2): 74.     CrossRef
  • Non-mucinous adenocarcinomas and squamous cell carcinomas of the anal region masquerading as abscess or fistula: a retrospective analysis and systematic review of literature
    Aysun Tekbaş, Henning Mothes, Utz Settmacher, Silke Schuele
    Journal of Cancer Research and Clinical Oncology.2022; 148(6): 1509.     CrossRef
  • Management and Outcomes in Anal Canal Adenocarcinomas—A Systematic Review
    Vasilis Taliadoros, Henna Rafique, Shahnawaz Rasheed, Paris Tekkis, Christos Kontovounisios
    Cancers.2022; 14(15): 3738.     CrossRef
  • Adjuvant chemoradiotherapy does not improve outcomes in patients with fistula-associated anal adenocarcinoma undergoing abdominoperineal resection
    Min Wang, Yu Xiang, Yunshan Wang, Jiayi Zhang, Haoran Zhao, Can Wang, Lichao Qiao, Bolin Yang
    Frontiers in Oncology.2022;[Epub]     CrossRef
Original Articles
Obstructive Ileocolitis in Patients With Obstructed Colorectal Cancer – A Matched Case Control Study
Ning-Qi Pang, Tian-Zhi Lim, Yuanpei Zhou, Ker-Kan Tan
Ann Coloproctol. 2018;34(4):175-179.   Published online August 31, 2018
DOI: https://doi.org/10.3393/ac.2017.06.14.1
  • 4,524 View
  • 88 Download
  • 1 Web of Science
  • 1 Citations
AbstractAbstract PDF
Purpose
Obstructive ileocolitis is an ulcero-inflammatory condition which typically occurs in the ileum or colon proximal to an obstructing colorectal lesion. If left unresolved, it often leads to intestinal perforation. We present a matched case control study of patients with obstructive ileocolitis caused by colorectal cancer to determine if any factors can predict this condition.
Methods
This is a retrospective review of 21 patients with obstructive colorectal cancer and histologically proven obstructive ileocolitis from 2005 to 2015 matched for age and sex with 21 controls with obstructing colorectal cancer without obstructive ileocolitis.
Results
The 21 patients with obstructive ileocolitis had a median age of 71 years (range, 52–86 years). The most common presenting symptom was abdominal pain (n = 16, 76.2%), followed by vomiting/nausea (n = 14, 66.7%) and abdominal distension (n = 12, 57.1%). Interestingly, the radiological feature of pneumatosis intestinalis was noted in only 1 case. No significant differences were observed in baseline comorbidities, clinical presentations, or tumor characteristics between the 2 groups. Patients with obstructive ileocolitis were found to have a significantly higher total leucocyte count (17.1 ± 9.4×109/L vs. 12.0 ± 6.8×109/L, P = 0.016), lower pCO2 (32.3 ± 8.2 mmHg vs. 34.8 ± 4.9 mmHg, P = 0.013), lower HCO3 (18.8 ± 4.5 mmol/L vs. 23.6 ± 2.7 mmol/L, P < 0.001), lower base excess (-6.53 ± 5.32 mmol/L vs. -0.57 ± 2.99 mmol/L, P < 0.001) and higher serum lactate levels (3.14 ± 2.19 mmol/L vs. 1.19 ± 0.91 mmol/L, P = 0.007) compared to controls. No radiological features were predictive of obstructive ileocolitis.
Conclusion
Patients with obstructive ileocolitis tend to present with metabolic acidosis with respiratory compensation, raised lactate, and worse leucocytosis. Radiological features are not useful for predicting this condition.

Citations

Citations to this article as recorded by  
  • Prognostic Value of Neutrophil-to-Lymphocyte Ratio in Obstructing Colorectal Cancer Treated by Endoscopic Stenting as a Bridge to Surgery
    Jiwei Guo, Aik Yong Chok, Hui Jun Lim, Wei Xuan Tay, Weng Kit Lye, Lasitha Bhagya Samarakoon, Emile John Tan, Ronnie Mathew
    Annals of Coloproctology.2021; 37(3): 159.     CrossRef
Preoperative Body Mass Index, 30-Day Postoperative Morbidity, Length of Stay and Quality of Life in Patients Undergoing Pelvic Exenteration Surgery for Recurrent and Locally-Advanced Rectal Cancer
Jessica Beaton, Sharon Carey, Michael J Solomon, Ker-Kan Tan, Jane Young
Ann Coloproctol. 2014;30(2):83-87.   Published online April 25, 2014
DOI: https://doi.org/10.3393/ac.2014.30.2.83
  • 4,970 View
  • 50 Download
  • 20 Web of Science
  • 22 Citations
AbstractAbstract PDF
Purpose

Malnutrition is associated with an increased risk of developing complications following gastrointestinal surgery, especially following radical surgeries such as pelvic exenteration. This study aims to determine if preoperative body mass index (BMI) is associated with 30-day morbidity, length of hospital stay and/or quality of life (QoL) in patients undergoing pelvic exenteration surgery for recurrent and locally-advanced rectal cancer prior to a prospective trial.

Methods

A review of all patients who underwent pelvic exenteration surgery prior to 2008 was performed. Patients were included if they had a documented BMI as well as a QoL measurement (Functional Assessment Cancer Therapy - Colorectal questionnaire).

Results

Thirty-one patients, with a mean age of 56 years, had preoperative height and weight data, as well as measures of postoperative QoL, and formed the study group. The numbers of patients with recurrent (n = 17) or locally-advanced rectal cancer (n = 14) were similar. The mean length of stay was 21 days while the mean BMI of the patients was 24.3 (± 5.9) kg/m2. The majority of the patients were either of normal weight (n = 15) or overweight/obese (n = 11). The average length of hospital stay was significantly longer in patients who were underweight compared to those who were of normal weight (F = 6.508, P = 0.006) and those who were overweight and obese (F = 6.508, P = 0.007).

Conclusion

This study suggests that a lower body mass index preoperatively is associated with a longer length of hospital stay. BMI is not associated with long-term QoL in this patient group. However, further prospective research is required.

Citations

Citations to this article as recorded by  
  • Prospective longitudinal trajectory of cancer survivorship among patients with recurrent rectal cancer: impact of treatment modalities and resection status
    Tarik Sammour, Oliver Peacock, Brian K. Bednarski, Arvind Dasari, Prajnan Das, Benny Johnson, Grace L. Smith, George J. Chang, John Skibber, Y. Nancy You
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    Annals of Surgical Oncology.2023; 30(7): 3969.     CrossRef
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    Colorectal Disease.2022; 24(4): 353.     CrossRef
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    Preet G. S. Makker, Cherry E. Koh, Michael J. Solomon, James Ratcliffe, Daniel Steffens
    Colorectal Disease.2021; 23(10): 2647.     CrossRef
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    Tamara Glyn, Frank Frizelle
    Seminars in Colon and Rectal Surgery.2020; 31(3): 100767.     CrossRef
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    Moo-Jun Baek
    Annals of Coloproctology.2014; 30(2): 60.     CrossRef
The Safety and Efficacy of Mesenteric Embolization in the Management of Acute Lower Gastrointestinal Hemorrhage
Ker-Kan Tan, David Hugh Strong, Timothy Shore, Mohammmad Rafei Ahmad, Richard Waugh, Christopher John Young
Ann Coloproctol. 2013;29(5):205-208.   Published online October 31, 2013
DOI: https://doi.org/10.3393/ac.2013.29.5.205
  • 5,809 View
  • 42 Download
  • 17 Citations
AbstractAbstract PDF
Purpose

Mesenteric embolization is an integral part in the management of acute lower gastrointestinal (GI) bleeding. The aim of this study was to highlight our experience after adopting mesenteric embolization in the management of acute lower GI hemorrhage.

Methods

A retrospective review of all cases of mesenteric embolization for acute lower GI bleeding from October 2007 to August 2012 was performed.

Results

Twenty-seven patients with a median age of 73 years (range, 31 to 86 years) formed the study group. More than half (n = 16, 59.3%) of the patients were on either antiplatelet and/or anticoagulant therapy. The underlying etiology included diverticular disease (n = 9), neoplasms (n = 5) and postprocedural complications (n = 6). The colon was the most common bleeding site and was seen in 21 patients (left, 10; right, 11). The median hemoglobin prior to the embolization was 8.6 g/dL (6.1 to 12.6 g/dL). A 100% technical success rate with immediate cessation of hemorrhage at the end of the session was achieved. There were three clinical failures (11.1%) in our series. Two patients re-bled, and both underwent a successful repeat embolization. The only patient who developed an infarcted bowel following embolization underwent an emergency operation and died one week later. There were no factors that predicted clinical failure.

Conclusion

Mesenteric embolization for acute lower GI bleeding can be safely performed and is associated with a high clinical success rate in most patients. A repeat embolization can be considered in selected cases, but postembolization ischemia is associated with bad outcomes.

Citations

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    Abdominal Radiology.2025; 50(9): 4023.     CrossRef
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    British Journal of Radiology.2024; 97(1157): 920.     CrossRef
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Managing Deep Postanal Space Sepsis via an Intersphincteric Approach: Our Early Experience
Ker-Kan Tan, Dean C. Koh, Charles B. Tsang
Ann Coloproctol. 2013;29(2):55-59.   Published online April 30, 2013
DOI: https://doi.org/10.3393/ac.2013.29.2.55
  • 4,635 View
  • 79 Download
  • 15 Citations
AbstractAbstract PDF
Purpose

Managing deep postanal (DPA) sepsis often involves multiple procedures over a long time. An intersphincteric approach allows adequate drainage to be performed while tackling the primary pathology at the same sitting. The aim of our study was to evaluate this novel technique in managing DPA sepsis.

Methods

A retrospective review of all patients who underwent this intersphincteric technique in managing DPA sepsis from February 2008 to October 2010 was performed. All surgeries were performed by the same surgeon.

Results

Seventeen patients with a median age of 43 years (range, 32 to 71 years) and comprised of 94.1% (n = 16) males formed the study group. In all patients, an internal opening in the posterior midline with a tract leading to the deep postanal space was identified. This intersphincteric approach operation was adopted as the primary procedure in 12 patients (70.6%) and was successful in 11 (91.7%). In the only failure, the sepsis recurred, and a successful advancement flap procedure was eventually performed. Five other patients (29.4%) underwent this same procedure as a secondary procedure after an initial drainage operation. Only one was successful. In the remaining four patients, one had a recurrent abscess that required drainage while the other three patients had a tract between the internal opening and the intersphincteric incision. They subsequently underwent a drainage procedure with seton insertion and advancement flap procedures.

Conclusion

Managing DPA space sepsis via an intersphincteric approach is successful in 70.6% of patients. This single-staged technique allows for effective drainage of the sepsis and removal of the primary pathology in the intersphincteric space.

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Laparoscopic Versus an Open Colectomy in an Emergency Setting: A Case-Controlled Study
Frederick H. Koh, Ker-Kan Tan, Charles B. Tsang, Dean C. Koh
Ann Coloproctol. 2013;29(1):12-16.   Published online February 28, 2013
DOI: https://doi.org/10.3393/ac.2013.29.1.12
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AbstractAbstract PDF
Purpose

Laparoscopy continues to be increasingly adopted for elective colorectal resections. However, its role in an emergency setting remains controversial. The aim of this study was to compare the outcomes between laparoscopic and open colectomies performed for emergency colorectal conditions.

Methods

A retrospective review of all patients who underwent emergency laparoscopic colectomies for various surgical conditions was performed. These patients were matched for age, gender, surgical diagnosis and type of surgery with patients who underwent emergency open colectomies.

Results

Twenty-three emergency laparoscopic colectomies were performed from April 2006 to October 2011 for patients with lower gastrointestinal tract bleeding (6), colonic obstruction (4) and colonic perforation (13). The hand-assisted laparoscopic technique was utilized in 15 cases (65.2%). There were 4 (17.4%) conversions to the open technique. The operative time was longer in the laparoscopic group (175 minutes vs. 145 minutes, P = 0.04), and the duration of hospitalization was shorter in the laparoscopic group (6 days vs. 7 days, P = 0.15). The overall postoperative morbidity rates were similar between the two groups (P = 0.93), with only 3 patients in each group requiring postoperative surgical intensive-care-unit stays or reoperations. There were no mortalities. The cost analysis did not demonstrate any significant differences in the procedural (P = 0.57) and the nonprocedural costs (P = 0.48) between the two groups.

Conclusion

Emergency laparoscopic colectomy in a carefully-selected patient group is safe. Although the operative times were longer, the postoperative outcomes were comparable to those of the open technique. The laparoscopic group did not incur a higher cost.

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