Lalit Garg

Juxtarenal Aortic Pseudoaneurysm – Right Renal Vein Fistula with Circumaortic Renal Collar-Delayed Manifestation of a Gunshot Injury – an Uncommon Entity Diagnosed with CT Angiography

Summary Background Delayed presentation of post-traumatic aortic pseudoaneurysm and its fistulous communication with the right renal vein is a very rare entity. Most of the cases described in literature are due to abdominal aortic aneurysm (AAA) rupture into the left renal vein. To the best of our knowledge, communication with the right renal vein has not been described in published literature. Our patient also had a circumaortic renal collar, which is a rare renal vein anomaly. Aortic pseudoaneurysm, its fistulous communication with the right renal vein and circumaortic renal collar in a single patient is of extremely rare occurrence. Case Report A 29-year-old male presented to the cardiology department with complaints of breathlessness, abdominal pain and hematuria for the last 6 months. On clinical examination there was evidence of audible bruit over the abdomen. He had a past history of a gunshot injury around two years back. CT angiography revealed a large partially calcified pseudoaneurysm arising from the right lateral wall of the abdominal aorta with the neck of the pseudoaneurysm at juxtarenal location with a fistula between the anterior wall of the pseudoaneurysm and the posterior wall of the right renal vein. There was an associated incidental finding of circumaortic left renal vein with gross aneurysmal dilatation of both pre- and retro-aortic part of the renal vein. Conclusions Delayed presentation of aortic pseudoaneurysm with its fistulous communication with the right renal vein is a rare entity. CT angiography is a non-invasive modality for diagnosis of the exact site of communication, length of aneurysm, proximal and distal extent of the affected segment and its relationship with surrounding structures.

Aneurysm of Mid and Apical Interventricular Cardiac Septum Dissecting Along the Basal Part - An Uncommon Entity Diagnosed with CT Angiography.

Summary Background Aneurysm of the muscular interventricular septum is a rare entity as compared to the membranous part. Only a few cases of dissecting septal aneurysm have been reported in literature. Two-dimensional echocardiography is the initial diagnostic modality with ECG-gated CT and MRI being non-invasive imaging modalities for comprehensive evaluation. The complications can arise from chronic pressure erosion of the intervening septal myocardium, leading to left-to-right shunting in the form of ventricular septal defect and paradoxical thromboembolism. Radiologists should be aware of imaging findings of interventricular septal aneurysm, because of its rarity of occurrence and complications. Case Report A 48-year-old male patient presented to a cardiology department with complaints of intermittent chest pain, palpitations and exertional dyspnoea. CT angiography revealed a wide-mouth large aneurysm arising from the mid and apical portion of the interventricular septum dissecting into the basal part. There was associated significant bowing (>15 mm) of the septum and mild obliteration of the right ventricular cavity. Myocardium surrounding the aneurysm was identified with no associated ventricular septal defect (VSD). No evidence of intraventricular clot was found. Catheter angiography confirmed the CT angiographic findings. Conclusions Radiologists should be aware of imaging findings of interventricular septal aneurysm, because of its rarity of occurrence, complication in the form of thromboembolism, dissection and intracardiac shunting and mass effect over adjacent cardiovascular structures. Careful scrutiny is essential to avoid labelling of these cases as cardiac masses.

Klippel-Trenaunay syndrome, an unusual association with persistent lateral marginal vein of Servelle: colour Doppler and 256 dual-source MDCT evaluation

A 35-year-old woman presented with pain, skin discolouration, and gradually increasing swelling and dilation of the veins of the left lower limb. On examination, there was dilation and tortuosity of the superficial veins of the left lower limb, limb hypertrophy and port wine stain. Colour Doppler imaging revealed incompetence of the left saphenofemoral junction. The distal segment of left popliteal vein (proximal segment was normal), left sapheno-popliteal junction were not visualised and replaced by multiple dilated venous collaterals. Incompetent perforators were noted in the lower leg. Superficial dilated veins revealed wall thickening consistent with superficial thrombophlebitis (figure 1 …

A Case of Coronary Cameral Fistula with Associated Aneurysm: Role of ECG Gated 256- Slice Dual Source Multidetector Computed Tomography in Diagnosis.

We report an interesting case of coronary cameral fistula with associated aneurysmal dilatation of coronary artery. The complete evaluation including anatomical relationships with surrounding vascular and non-vascular structures can be achieved with ECG gated multi-detector computed tomography (MDCT). MDCT has many advantages over echocardiography and digital subtraction catheter angiography, because of its ability to demonstrate the fistula separate from surrounding cardiovascular structures along with any aneurysm or obstruction in its course. Thus, MDCT is emerging as the initial non-invasive imaging technique for comprehensive preoperative evaluation of these rare congenital anomalies for cardiovascular surgeons to achieve better operative assessibity and outcome.

Spontaneous Isolated Dissecting Aneurysm of Distal Celiac Artery- A Rare and Lethal Incidental Finding

Aneurysm of celiac artery is an uncommon occurrence with nearly 180 cases being reported in the literature so far [1]. These have been attributed to traumatic, iatrogenic and inflammatory being amongst few associated etiological factors. Spontaneous isolated dissecting aneurysm of celiac trunk is a rare occurrence with very few cases being mentioned in the published literature. Although the rate of rupture was 72% to 87% during the 1st half of the 20th century, advances in diagnostic imaging and early surgical intervention have reduced the rupture rate to 7% in recent years [1]. Early recognition and urgent intervention is required to prevent fatal complications like intraperitoneal rupture. Authors present a case of isolated spontaneous dissecting aneurysm of distal celiac artery in a fifty five year old male patient with alcoholic cirrhosis.

Intrahepatic ascariasis – Common parasite at an uncommon site

Abstract Bacterial infections of the biliary tree are common infections of the biliary system which frequently lead to life-threatening sepsis. Parasitic infections of the biliary tree like ascariasis are not uncommon. Most adult worms reside into the extrahepatic biliary system. Intrahepatic existence is not commonly described. Urgent recognition of the intrahepatic existence of this common parasite is of paramount importance in order to start timely treatment of this life-threatening infection. Authors described a case of intrahepatic ascariasis in a young male who was diagnosed radiologically and thereafter managed with endoscopic retrograde cholangio-pancreatography and antibiotics.

Large Gastric Perforation Sealed by Splenic Lysis: Emphasis on Indirect Signs - A Rare Case Report.

Summary Background Gastric perforation is a life-threatening condition, requiring early and reliable discovery. The delay before surgical treatment is a strong determinant of poor outcome, associated complications and hospitalization costs. By using ultrasound and multi-detector computed tomography (MDCT) we can further evaluate undiagnosed cases of silent gastric perforations presenting with non-specific acute abdomen. Here we bring forth the role of a radiologist in cases of perforation which present with indirect signs involving the organs forming the stomach bed, like the spleen, pancreas and kidney. Case Report A 25-year-old male patient presented with an acute onset of severe upper abdominal pain radiating to the back and vomiting. MDCT of the abdomen was done which revealed atrophic pancreas with organized collection in the sub-capsular location indenting the superior pole of the left kidney. Spleen was not visualized. The most striking imaging finding in that case was destruction of the splenic parenchyma with protrusion of the remaining tissue into the stomach lumen. The hypothesis behind this was a cascade of events which started with gastric perforation, spillage of highly destructive gastric juice over the stomach bed and finally becoming silent with rapid sealing of the defect by the omentum and the spleen. Conclusions Acute abdomen is a diagnostic challenge to a clinician and radiologist with gastric perforation being a great mimicker of other urgent abdominal pathologies. To avoid a delayed diagnosis or a misdiagnosis, familiarity with typical and atypical imaging features is essential as in our case of splenic lysis. It acted as the 2nd policeman and provided a great clue to solve the diagnostic dilemma.