A 14-year-old male was admitted to the hospital with complaints of colicky abdominal pain and severe emesis. The patient’s emesis had started 6 months earlier and was mild, but it has worsened during the last month and become more frequent with larger amounts. The child’s parents had given him over-the-counter antibiotics to treat a suspected gastroenteritis and they had no effect; on the contrary, the symptoms deteriorated bringing them to the hospital. The child had periumbilical colicky pain, nausea, severe emesis, anorexia, weight loss, and he was passing hard stools. The emesis started reflexive and non-bilious but soon before admission, it turned into bilious emesis. After admission, a Nasogastric Tube (NGT) was inserted and showed bilious emesis followed by fecal emesis, which suggested an intestinal obstruction. The patient did not have any relevant past medical history or drug history or any similar disease in the family. Physical examination showed a tender, rigid abdomen and no signs of fever. Rectal examination showed a fecal impaction. We evaluated vital signs upon admission: blood pressure: 100/70 mmHg, Pulse: 96 beats/minute. Lab tests were: (Na+: 132 mEq/L) (K+: 3 mEq/L) (Glucose: 96 mg/dl) (Creatinine: 0.63 mg/dl) (WBC: 10100 cell/ul) (Hemoglobin: 11.2 g/dl). We performed ultrasonography to evaluate the suspected intestinal obstruction, which showed some dilated intestinal loops with some fluid congregation. Ultrasonography did not detect any signs of ascites and showed normal liver, spleen and kidneys. CT scan was performed to further evaluate the suspected intestinal obstruction and showed two bilateral abdominal masses that were not suggestive of any specific condition. The clinical presentations combined with the investigations’ results highly suggested the presence of an intestinal obstruction, which is a surgical emergency. The following exploratory laparotomy showed a jejuno-jejunal intussusception, 70 cm from Treitz ligament. The intussuscepted intestinal segment showed signs of necrosis and there was a polyp near the area of intussusception. We resected the intussuscepted area, the area of necrosis, the polyp and 34 lymph nodes and sent them to pathological examination. Finally, we performed a primary end-to-end anastomosis. The patient had a good overall condition after surgery, absent nausea and emesis. We provided oral liquids the second day after surgery. The pathological examination of the polyp reported grade Ι adenocarcinoma with 4.5 cm diameter. The tumor invaded the intestinal wall and reached the muscularis propria. TNM staging was T = 2, N = 0, M = 0 and the tumor required no additional treatment. There was no evidence of metastases in any of the isolated 34 lymph nodes. Unfortunately, we did not genotype the tumor or the patient for the various cancer syndromes because this technology is not available in the province. Lower gastrointestinal endoscopy after a month showed normal colon and intestines and no polyps. Six months after surgery, we performed a multi-slice CT scan, which was normal.