Paint Brush Appearance Radiology at William Trusty blog

Paint Brush Appearance Radiology. Classically described as having a “paint brush” appearance, contrast opacifies the dilated tubules, resulting in dense striations extending from the papillary. However, in wide window image (c) and coronal mip image (d) show “paintbrush” appearance of the medullary pyramids (yellow arrows) due to pooling of contrast within the dilated collecting. The pathologic basis of the “paint brush borders” sign on preoperative mri has been identified as invasion of the bone around the lesions. This patient has tubular ectasia with a “paint brush” appearance of some of the tips of the medullary pyramids. At intravenous urography, the characteristic ‘paint brush’ appearance is due to the pooling of contrast, and linear striations radiating from the calyces. Diagnostic findings include papillary blush in mild cases and linear striations (“paint brush”) and papillary bouquets.

However, in wide window image (c) and coronal mip image (d) show “paintbrush” appearance of the medullary pyramids (yellow arrows) due to pooling of contrast within the dilated collecting. At intravenous urography, the characteristic ‘paint brush’ appearance is due to the pooling of contrast, and linear striations radiating from the calyces. The pathologic basis of the “paint brush borders” sign on preoperative mri has been identified as invasion of the bone around the lesions. Diagnostic findings include papillary blush in mild cases and linear striations (“paint brush”) and papillary bouquets. Classically described as having a “paint brush” appearance, contrast opacifies the dilated tubules, resulting in dense striations extending from the papillary. This patient has tubular ectasia with a “paint brush” appearance of some of the tips of the medullary pyramids.

Close up video imaging of thick paint brush with metallic ferrule repeatedly moving up and down

Paint Brush Appearance Radiology Classically described as having a “paint brush” appearance, contrast opacifies the dilated tubules, resulting in dense striations extending from the papillary. This patient has tubular ectasia with a “paint brush” appearance of some of the tips of the medullary pyramids. However, in wide window image (c) and coronal mip image (d) show “paintbrush” appearance of the medullary pyramids (yellow arrows) due to pooling of contrast within the dilated collecting. The pathologic basis of the “paint brush borders” sign on preoperative mri has been identified as invasion of the bone around the lesions. At intravenous urography, the characteristic ‘paint brush’ appearance is due to the pooling of contrast, and linear striations radiating from the calyces. Diagnostic findings include papillary blush in mild cases and linear striations (“paint brush”) and papillary bouquets. Classically described as having a “paint brush” appearance, contrast opacifies the dilated tubules, resulting in dense striations extending from the papillary.