talc pleurodesis

Hypermetabolic
PET positive pleural nodular thickening five years after pleurodesis.. Dense nodular pleural thickening is seen along the left upper lobe after 12 months of pleurodesis.
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Hypermetabolic
PET positive pleural nodular thickening five years after pleurodesis.. Increased nodular pleural thickening was seen four years after the baseline scan.
www.eurorad.org • CC by-nc-sa-4.0
Hypermetabolic
PET positive pleural nodular thickening five years after pleurodesis.. The nodular pleural thickening showed high uptake on PET (SUV 30).
www.eurorad.org • CC by-nc-sa-4.0
Radiopaedia • CC-by-nc-sa 3.0 • de

Talc pleurodesis is one of the chemical methods of pleurodesis which is a procedure performed to prevent recurrence of a pneumothorax or recurrent pleural effusion in benign or malignant conditions. It involves achieving an area of adhesion between the parietal and visceral layers of the pleura.

Radiographic features

CT

After talc pleurodesis, the pleural space can reveal variable degrees of pleural thickening (can be nodular and or linear), often with a residual loculated effusion. Pleural calcification can also occur. The changes are usually stable on serial imaging . Pleural thickening usually affects the posterior basal pleura or apices but can extend into the fissures.

FDG-PET

Talc deposits produce areas of highly increased 18F-FDG uptake. Since talc is not metabolized by the body, the FDG-PET scan can show high uptake and remain positive, most likely as a result of a foreign-body granulomatous reaction. These changes can persist for many years.

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Pleurodese:
Pleuraplaques
 
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