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Adenocarcinoma of the Colon in a 10-year-old Child

M.M Siboe, R.O Abdalla, K.C Lakati, P Oduor, M.M Siboe

Siboe M. M., MBChB, Abdalla R. O., MBBS, MCS (ECSA), Lakati K.C., MBChB, MCS (ECSA), Oduor P., MBChB, MMed (Surg), FCS (ECSA) Correspondence: Dr. M.M. Siboe, P.O. Box 73946-00200, Nairobi, Kenya, E-mail:

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Conflicts of Interest: None

Funding: None


Colonic adenocarcinoma is rare in children, more so in the first decade of life. Owing to the non-specificity and vagueness of symptoms, most patients in this age group present with advanced malignacy. The authors report a case of adenocarcinoma of the colon in a 10-year-old female child presenting with a history of abdominal pain, distention and constipation. Barium enema highlighted a narrowing of the distal ascending colon with laparotomy revealing a growth involving the caecum and ascending colon. Histology confirmed it as a poorly diffentiated mucin secreting adenocarcinoma. A right hemicolectomy with end to end ileotransverse anastomosis was perfomed. Four months later, she presented with symptoms of intestinal obstruction. Intraoperatively, widespread metastatic nodules with recurrent tumour were noted. It is important for clinicians to be aware that colorectal carcinoma does occur in children, and age alone should not be a basis for its exclusion. This case is presented to draw attention to a disease in which the prognosis, by wider recognition of its occurrence in childhood, might be improved.


Colorectal carcinoma is a common visceral malignancy in the adult age group. Few cases have been reported in children and adolescents. Clinical features in childhood are non-specific and therefore tend to be ignored or misinterpreted (1). Only about 400 cases involving subjects less than 20 years were reported in the literature by 1988, with less than 12 patients below the age of 10 years and the youngest nine months old at the time of diagnosis (2-11). Genetic instability without hereditary nonpolyposis colorectal cancer (HNPCC) is a major mechanism of causation (12,13). In contrast to adult patients, childhood adenocarcinoma is associated with a poorer prognosis and a high index of suspicion is required for early diagnosis.

Case Report

A ten year old girl presented to our facility with a four months history of abdominal pain associated with distension, constipation, anorexia, weight loss and postprandial emesis. She had received various treatments with only partial relief, for the symptoms and results of stool investigations repeatedly showing pus cells. Her general condition was good. She was not pale and had no jaundice, lymphadenopathy or dehydration. Her vital signs were as follows: pulse 78/minute, respiratory rate 18/minute, blood pressure 110/80 mmHg and temperature 36.5°C. Examination of the abdomen revealed a poorly circumscribed and immobile mass in the right iliac fossa. The bowel sounds were present and normal. The liver, spleen and rectum were normal as was the rest of the systemic examination. She was investigated for a colonic tumour. The haemoglobin was 10.1g/dl; white blood cell count 10 x 103 /µl; hematocrit 32.8%; platelets 469 x 103 /µl; urea 3.2 mmol/l; creatinine 94.5 µmol/l; sodium 140.9 mmol/l and potassium 4.3 mmol/l. Her previous plain abdominal radiographs were normal while ultrasound revealed a right abdominal opacification displacing bowel loops. A barium enema done indicated easy and free flow of contrast up to the upper ascending colon (fig. 1) with circumferential narrowing of the distal ascending colon (fig. 2). The rest of the colon was normal. At exploratory laparotomy, there was an iliac fossa mass with enlarged mesenteric nodes. The mass was hard, nodular and involved the caecum and proximal part of the ascending colon (figure 3). The appendix was enlarged and erythematous (figure 4). There was no ascitis. The rest of the viscera were normal. A right hemicolectomy and end-to-end ileo-transverse anastomosis was performed. The patient developed cough and fever on the third post operative day with decreased breath sounds over the left posterior lung field and presence of coarse crepitations on auscultation. Appropriate antibiotic treatment was initiated and the rest of her post operative recovery was uneventful. At pathology, the total length of resected gut was 35 cm with the tumour measuring 9 x 6 cm. The tumour involved the entire thickness of the wall circumferentially constricting the caecum and ascending colon. Enlarged mesenteric nodes were evident. No evidence of polyps was noted. The growth was a poorly differentiated mucin secreting adenocarcinoma at histology. It involved the whole colonic wall. The proximal and distal margins of resection were free of tumour. There was also involvement of mesentery, and blood vessels. Five lymph nodes were identified, with level II lymph node metastasis. The pathological stage was denoted T3, N2, Mx (Dukes stage C). The patient was then referred to an oncologist and was due to start on a course of chemotherapy: Folinic acid (leucovorin), 5-Fluorouracil, Oxaliplatin (FOLFOX regimen). However, she was readmitted four months later with features of intestinal obstruction. She had been unwell for a duration of two weeks prior to this admission. She was sick looking and the abdomen distended with an ill-defined right iliac fossa mass. Plain radiographs showed multiple lengthy air–fluid levels within the small intestines. Because of persistent obstructive symptoms, the abdomen was explored. The intraoperative findings this time included widespread metastatic nodules on the greater omentum, small intestines, the entire peritoneal lining and the liver. A 15cm diameter recurrent mass was found at the site of the previous anastomosis with dilated small bowel loops (fig. 5). Excision of the tumour was performed with primary ileo-transverse anastomosis and omentectomy. The patient showed poor response post operatively and died 1 week later.


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