Image-Guided Percutaneous Biopsy of Gastric Lesions
Hello Believers! Yesterday I performed USG guided percutaneous biopsy on a case of endoscopy negative gastric mass. Here are some take aways. - Gastric lesions are most commonly evaluated via "endoscopy with biopsy". - However, in certain cases — especially when the lesion is "submucosal, extrinsic, or inaccessible endoscopically" — "image-guided percutaneous biopsy" becomes necessary. - These techniques are increasingly used in "interventional radiology" with good diagnostic yield and safety profiles. 1. Indications for Percutaneous Biopsy - Endoscopy failure (due to poor access or inadequate sampling) - Large exophytic gastric masses - Suspicion of GISTs (Gastrointestinal Stromal Tumors)with extragastric growth - Lymphomas or metastases presenting as gastric wall thickening Reference:* Kim JH et al. Radiology*. 2014. CT-guided biopsy for gastrointestinal masses showed high diagnostic accuracy and minimal complications. 2. Imaging Modalities Us...