Abstract

18F-fluorodeoxyglucose positron emission tomography (FDG-PET) has been widely incorporated in cancer management. Although, it has increased sensitivity, 18F-FDG is not tissue specific thus posing diagnostic dilemma in certain situations. False positivity in pulmonary nodules have been seen in various inflammatory, infective as well as post operative conditions while false negativity is common with adenomas, low grade lymphomas, bronchoalveolar carcinomas and carcinoid tumors. We present two cases of granulomatous diseases as pulmonary cryptococcosis and tuberculosis showing false positivity in a resected colorectal cancer patient and highlight the importance of recognition of this entity in an endemic region for granulomatous infections.

Authors

Ghimire P, Sah AK

Institution

Department of Radiology and Nuclear Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, PR China. drprasannaghimire@gmail.com

Source

Nepal Medical College journal : NMCJ 13:2 2011 Jun pg 142-3

MeSH

Adult
Cryptococcosis
Fluorodeoxyglucose F18
Humans
Lung Diseases, Fungal
Lung Neoplasms
Male
Positron-Emission Tomography
Radiopharmaceuticals
Tuberculoma
Tuberculosis, Pulmonary

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

22364103