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This report aims to present an unusual case of metastatic colorectal adenocarcinoma in a pediatric patient, focusing on diagnosis and treatment.

July 12, 2026CureusOpen Access

Metastatic Colon Adenocarcinoma in a 15-Year-Old Teenager: A Case Report

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This report aims to present an unusual case of metastatic colorectal adenocarcinoma in a pediatric patient, focusing on diagnosis and treatment.
Colonoscopy and biopsy confirmed intramucosal colorectal adenocarcinoma.
Computed tomography (CT) scans identified parietal thickening and lymphadenopathy.
Surgical intervention included diverting ileostomy and lymphadenectomy.
Histopathological examination confirmed metastatic adenocarcinoma from the colon to the liver.
Immunohistochemical analysis showed microsatellite instability, indicating potential genetic predisposition.
Patient treated with pembrolizumab after diagnosis.

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Case report identifies metastatic colorectal cancer in a teenager, suggesting the need for awareness in pediatric populations.

Maoudda et al. (2026) studied this question.

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