Increased Colonic Fluorodeoxyglucose Uptake in Melanosis Coli—A Case Series of Three Patients

Ryo Katsumata; Noriaki Manabe; Maki Ayaki; Tomohiro Tanikawa; Minoru Fujita; Yumika Ono; Hideyo Fujiwara; Mitsuhiko Suehiro; Yasumasa Monobe; Katsuya Kato; Hirofumi Kawamoto; Ken Haruma

Gastro Hep Advances (Jan 2022)

Increased Colonic Fluorodeoxyglucose Uptake in Melanosis Coli—A Case Series of Three Patients

Ryo Katsumata,
Noriaki Manabe,
Maki Ayaki,
Tomohiro Tanikawa,
Minoru Fujita,
Yumika Ono,
Hideyo Fujiwara,
Mitsuhiko Suehiro,
Yasumasa Monobe,
Katsuya Kato,
Hirofumi Kawamoto,
Ken Haruma

Affiliations

Ryo Katsumata: Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan
Noriaki Manabe: Division of Endoscopy and Ultrasonography, Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan; Correspondence: Address correspondence to: Noriaki Manabe, MD, PhD, 2-6-1 Nakasange Kita-ku, Okayama-City, Okayama 7008505, Japan; fax: +81862328343.
Maki Ayaki: Division of Endoscopy and Ultrasonography, Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan
Tomohiro Tanikawa: Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan
Minoru Fujita: Division of Endoscopy and Ultrasonography, Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan
Yumika Ono: Department of Radiology, Kawasaki Medical School General Medical Center, Okayama, Japan
Hideyo Fujiwara: Division of Endoscopy and Ultrasonography, Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan
Mitsuhiko Suehiro: Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan
Yasumasa Monobe: Division of Endoscopy and Ultrasonography, Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan
Katsuya Kato: Department of Radiology, Kawasaki Medical School General Medical Center, Okayama, Japan
Hirofumi Kawamoto: Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan
Ken Haruma: Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan

Journal volume & issue: Vol. 1, no. 2
pp. 125 – 128

Abstract

Read online

We report 3 Japanese cases with increased colonic 18-fluorodeoxyglucose (FDG) uptake in association with melanosis coli. Case 1: A 56-year-old woman received 18-FDG positron emission tomography (PET) for comprehensive medical checkup. Case 2: A 79-year-old man received FDG-PET for follow-up evaluation for intestinal cancer. Case 3: A 51-year-old woman received FDG-PET for medical checkup. Each showed increased cecal and/or ascending colonic uptake without any colonic wall changes. Colonoscopy detected melanosis coli where FDG uptake was demonstrably increased. Neither malignancy nor inflammatory response was confirmed. Succeeding follow-ups showed neither malignant nor inflammatory lesions in any of the patients.

Published in Gastro Hep Advances

ISSN: 2772-5723 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Internal medicine: Specialties of internal medicine: Diseases of the digestive system. Gastroenterology
Website: https://www.sciencedirect.com/journal/gastro-hep-advances

About the journal

Abstract

Keywords