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Rad case blog

I ve been loggin in some radiology cases on this blog. click https://rad-log.blogspot.in/  I ll try to post more post this year 2018 on this blog. It is a useful blog.

SPLENOSIS

Splenosis is defined as the autotransplantation of splenic tissue resulting from the spillage of cells from the pulp of the spleen after splenic injury or splenectomy. Splenic implants are generally numerous, can be located anywhere in the peritoneal cavity, are supplied by arteries from the surrounding tissue rather than a hilar artery, have no particular shape, and have neither a […]

Gastric Ca vs Gastric Lymphoma

CHARACTER                                     CARCINOMA                                 LYMPHOMA A. WALL THICKNESS               <1 cm             […]

GI duplication cysts

Gastrointestinal duplication cysts are relatively common congenital anomalies which are composed of fluid-filled sacs lined by a layer of epithelium and smooth muscle from the alimentary tract. They frequently share a common blood supply and muscular wall from the adjacent portion of the intestine. The most common locations are: Distal ileum (34%), esophagus (19%), stomach […]

EYE OF THE TIGER SIGN

EYE OF THE TIGER sign is the MRI changes seen in Globus Pallidus in Pantothenate kinase associated neurodegenration. .The Globus Pallidus in T2W MRI shows medial high signal and lateral low signal. Pantothenate kinase associated neurodegenration Most common form of neurodegeneration with iron accumulation in the brain. Mutation of pantothenate kinase 2 gene is the […]

Renal Artery Stenosis

            Left intrarenal doppler spectrum with dampened tardus/parvus waveform     Right intrarenal doppler spectrum normal   Left renal artery occlusion   Patent right renal artery   Volume-rendered image (posterior view) shows bilateral focal narrowing of the proximal main renal artery (arrows) with poststenotic dilatation.    Digital subtraction angiogram shows […]

RENAL VEIN THROMBOSIS

Normal color doppler ,Renal vasculature     USG shows diffusely hyperechoic kidney with loss of cortico-medullary differentiation Color Doppler shows absent renal vein doppler signal   CT Scan axial section shows hypoattenuating thrombus in the left renal vein CT scan Excretory phase shows enhancement of collaterals around ureter MRA showing low signal thrombus partially obstructing […]

Renal Papillary Necrosis – Differential Diagnosis

D/D A.In early ischaemic stage :During the early ischemic stage of renal papillary necrosis, corticomedullary or parenchymal phase multi–detector row CT shows a poorly marginated area of decreased enhancement at the tip of the medullary pyramid. .1. Pyelonephritis also may be visible as a circumscribed area of reduced enhancement at CT during the corticomedullary and parenchymal phases, but […]

Renal Papillary Necrosis – Stages and Imaging findings

    Normal kidney showing vasculature on color doppler USG   Longitudinal color Doppler US image shows blunting of the upper polar calices (arrows), which are bordered by arcuate vessels (arrowheads)   Early Ischemic Change in the Medullary Pyramid Renal papillary necrosis is the consequence of an ischemic process in the renal papillae. Infection that […]

Hydrosalphinx vs Cystadenoma. How to differentiate on MRI?

On MR images, the hydrosalpinx appears as a fluid-filled tubular structure that arises from the upper lateral margin of the uterine fundus and is separate from the ipsilateral ovary. A dilated fallopian tube folds upon itself to form a sausagelike C- or S-shaped cystic mass as seen below   Sagittal T2-weighted MR image shows an […]