Tuberculous Scar Tumour Detected by Dual Tracer Positron Emission-Computerised Tomography in a Tuberculous Endemic Area
Malaysian Journal of Medical Sciences
;
: 70-74, 2014.
Article
in English
| WPRIM
| ID: wpr-628288
ABSTRACT
Tuberculous scar tumour is difficult to diagnose as it does not present with any respiratory symptoms and has a negative chest X-ray. This is a case report on the use of dual tracer 11C-acetate and 18F-fluorodeoxyglucose (18FDG) whole body positron emission tomography-computerised tomography (PET-CT) for detection of tuberculous scar tumour. A 44-year-old Chinese female was incidentally found to have a raised serum Ca 19.9. Magnetic resonance imaging of the whole abdomen, upper endoscopy, and colonoscopy were all unremarkable. A low-dose computed tomography (CT) of the thorax showed bilateral upper lobe fibrosis. Bronchoalveolar lavage for culture and cytology was negative. A dual tracer 11C-acetate and 18FDG whole body PET-CT showed that the left upper lobe fibrosis was hypermetabolic in nature. It was more avid for 11C-acetate than for 18FDG. The left upper lobe lesion was subsequently confirmed on open lung biopsy to be a moderately differentiated adenocarcinoma. Therefore, in a tuberculous endemic region, dual tracer whole body PET-CT with 11C-acetate and 18FDG may have a role in the early detection of tuberculous scar tumour in the lung.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Screening study
Language:
English
Journal:
Malaysian Journal of Medical Sciences
Year:
2014
Type:
Article
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