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28th February 2025
A 39-year-old man is referred for colonoscopy having had a positive FIT test. His father died 5 years ago
A 39-year-old man is referred for colonoscopy having had a positive FIT test. His father died 5 years ago at the age of 54 from bowel cancer and his uncle has just been diagnosed with bowel cancer at the age of 49. His paternal grandfather also died of bowel cancer.
Aside from intermittent abdominal bloating, he is usually fit and well. On examination, temperature is 36.7°C, BP 120/70 mmHg, heart rate 90 bpm, RR 20 and oxygen saturation 95% on air.
His blood results are given below:
| Hb | 90 g/L | (135-180) |
| MCV | 79 fL | (80 – 100) |
| WBC | 10.1 x 10⁹/L | (4.0 – 11.0) |
| Na+ | 136 mmol/L | (135 – 145) |
| K+ | 5.1 mmol/L | (3.5 – 5.0) |
| Urea | 5.0 mmol/L | (2.0 – 7.0) |
| Creatinine | 99 µmol/L | (55 – 120) |
| CEA | Negative | |
Which of the following is the most likely diagnosis?
Select the SINGLE most appropriate option from the list below. Select ONE option only.
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