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Ecancermedicalscience. 2014 Mar 20;8:412. doi: 10.3332/ecancer.2014.412. eCollection 2014.

Regression of metastatic colon tumour from primary adenocarcinoma of the lung due to fistulisation to the bowel lumen.

Ecancermedicalscience

Masaya Iwamuro, Yoshio Miyabe, Kai Hanae, Kawai Yoshinari, Takata Katsuyoshi, Toshi Murakami, Mifune Hirofumi, Kazuhide Yamamoto

Affiliations

  1. Department of Gastroenterology, Onomichi Municipal Hospital, Onomichi 722-8503, Japan ; Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan.
  2. Department of Gastroenterology, Onomichi Municipal Hospital, Onomichi 722-8503, Japan.
  3. Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan.
  4. Department of Respiratory Medicine, Onomichi Municipal Hospital, Onomichi 722-8503, Japan.
  5. Department of Radiology, Onomichi Municipal Hospital, Onomichi 722-8503, Japan.
  6. Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan.

PMID: 24834113 PMCID: PMC3971873 DOI: 10.3332/ecancer.2014.412

Abstract

An 80-year-old Japanese male was diagnosed with pulmonary adenocarcinoma. The patient exhibited extensive extra pulmonary involvement in the bone, adrenal gland, abdominal lymph nodes, and sigmoid colon. A single course of chemotherapy with carboplatin and pemetrexed was administered as the first-line treatment. Subsequently, the patient received pemetrexed monotherapy. Two months after the diagnosis, rapid regression of the metastatic tumour in the sigmoid colon was observed. Based on the findings of CT scanning and colonoscopic examination, tumour-bowel fistulisation was considered to be a cause of the rapid regression. This case report illustrates a tumour-bowel fistula of a colonic metastatic tumour in a patient with lung cancer. Radiographic and endoscopic features of the rare manifestation are presented.

Keywords: colonic metastasis; lung cancer; pulmonary adenocarcinoma; tumour-bowel fistula

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