Abdominal Mesh Implant Showing FDG Uptake on PET/CT

Introduction: Malignant pleural mesothelioma (MPM) is a rare and aggressive cancer that typically arises from the mesothelial linings of the lungs. The current study presents a rare case of MPM with a good clinical response to chemotherapy, associated with pericardial dual mesh uptake in PET scan upon follow up. Case presentation: A 33-year-old male presented with dyspnea, severe headache for a period of a month. He had history dendritic cell sarcoma which had been managed by 21 cycles of radiotherapy. Chest x. ray showed multiple pleural based masses. Chest computed tomography scan showed multiple lobulated pleural masses involving right hemithorax. Pleural biopsy showed epithelial type-mesothelioma. The patient underwent 3 sessions of combination chemotherapy followed by pleurectomy. The patient's response to chemotherapy was optimal and 5 month-PET scan follow up showed uptake by the implanted mesh. Discussion: MPM is reported to be directly linked to asbestos exposure with poor prognosis. The current optimal management regarding MPM is lacking. Even though PET scan is highly sensitive, sites of infections, inflammation, and healing of surgical scars have been reported to show uptake, leading to a false positive result. Conclusion: The best therapeutic approach regarding MPM can be multimodal therapies that include surgery, radiotherapy, and chemotherapy before and after surgery. PET scan follow up of patients with previous mesh implantations can show uptake and mimic malignancy. Highlights

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Increased 18F-FDG Uptake Associated With Gastric Banding Surgical Mesh on PET/CT

Chism

Somcio

Chasen

et al. 2016

Clinical Nuclear Medicine

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Surgical mesh was used in the 1980s and early 1990s for vertical banded gastroplasty as treatment for morbid obesity. This procedure was replaced by the more popular laparoscopic gastric banding in the mid-1990s. Surgical mesh, commonly used in hernioplasty, has been associated with increased F-FDG uptake related to an inflammatory foreign body reaction and is a known cause of false-positive PET scans. We present a case of increased F-FDG uptake related to surgical mesh in a patient who had undergone vertical banded gastroplasty.

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Abdominal Mesh Implant Showing FDG Uptake on PET/CT

Cited by 4 publications

References 9 publications

Postoperative changes after surgical mesh hernia repair: a pitfall in interpretation of 18F-FDG PET-CT

Postoperative changes after surgical mesh hernia repair: a pitfall in interpretation of 18F-FDG PET-CT

Pericardial dual mesh uptake on PET scan mimicking residual mesothelioma; a case report

Increased 18F-FDG Uptake Associated With Gastric Banding Surgical Mesh on PET/CT

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