Navigating the Complexities: A Case Report on Diagnostic and Management Challenges in Transverse Colon Cancer

The transverse colon is the least commonly impacted segment in Colorectal Cancer (CRC), contributing to only a fraction of cases. Its rarity can result in less clinical familiarity and significant diagnostic delays as compared to other CRC sites, such as the rectum or sigmoid colon. Because the transverse colon surrounds the upper abdomen, symptoms may overlap with those of other abdominal organs (for example, the stomach, liver, or pancreas). This frequently results in misdiagnosis or delayed recognition. Patients may present with non specific symptoms such as non specific abdominal pain, bloating, or changes in bowel habits, which are difficult to accurately attribute to cancer in this region. The mobility and location of the transverse colon might make visualisation difficult during colonoscopy, perhaps leading to undetected lesions. Hereby, we present a case study of a 70-yearold male with severe lower abdominal pain, intermittent watery stools, rectal bleeding, and significant weight loss. Examination identified an 8×5 cm palpable mass in the epigastric region extending into both hypochondria. Histopathological analysis revealed colonic mucosal ulceration, chronic inflammation, haemorrhage, and an infiltrating malignant tumour characterised by pleomorphic cells in sheets, nests, and glandular patterns. Magnetic Resonance Imaging (MRI) evidenced the diffuse circumferential wall thickening of the transverse colon, indicative of malignancy. The present case provides valuable insights and enhances the practice of early diagnostic procedures for detecting transverse CRC. By addressing the unique challenges of this rare condition, it deepens diagnostic precision and underscores the importance of timely intervention.