Role of CT scan in diagnosis of renal lymphangiectasia: our single-center experience.

BACKGROUND: Renal lymphangiectasia is rarely reported benign renal disorder of lymphatic malformation. Though found incidentally; it presents with nonspecific symptoms and shows characteristic findings in radiological imaging studies. AIM: Here, we report eight patients with symptoms, laboratory and imaging findings compatible with renal lymphangiectasia. This report describes clinical and laboratory characteristics, treatment, Imaging findings and outcome of a series of patients with renal lymphangiectasia and reviews the literature. METHODS AND MATERIAL: Eight patients (mean age 45 years, male:female ratio 3:1) from 1st January 2011 to 30th June 2016; showing renal lymphangiectasia as incidental finding on CT IVP were included in the series. Imaging and laboratory findings were reviewed. Two out of eight patients (25%) underwent aspiration of collection and laboratory findings confirmed the diagnosis of renal lymphangiectasia. Four out of eight patients (50%) did not undergo aspiration of fluid and were offered conservative treatment. Two out of eight patients (25%) were donors for renal transplantation who were managed conservatively. RESULTS: Renal lymphangiectasia was diagnosed on CT IVP. In each case, where aspiration of collection fluid was offered, the laboratory diagnosis of renal lymphangiectasia was confirmed and patients were managed conservatively. However, large collection in one patient was relieved by percutaneous aspiration. CONCLUSIONS: Renal lymphangiectasia can be diagnosed with CT scan and confirmed by laboratory tests. As it may be confused with other cystic lesions of kidney; proper diagnosis and exclusion of other differentials can be effectively offered by CT scan IVP, which can avoid unnecessary invasive treatment options.

Radial artery pseudoaneurysm: A rare complication after a single arterial puncture for blood-gas analysis.

With a reported incidence of 0.048%, radial artery pseudoaneurysm (PA) is a rare but serious complication of arterial cannulation. We report a case of PA developing after a single puncture of the right radial artery for arterial blood-gas analysis diagnosed by Doppler ultrasound in young male patient. The development of PA after puncture of radial artery for continuous blood pressure monitoring and serial blood-gas analysis has been reported in the past; however, to the best of our knowledge, there is only one case report of development of PA after a single arterial puncture for blood-gas analysis is reported in the past.

Bilateral Renal Lymphangiectasia.

Renal Lymphangiectasia (RLM) is very rare benign lymphatic malformation. It can be misdiagnosed for other cystic renal masses, most commonly polycystic kidneys. Though incidentally found in most cases, it may be the cause for hypertension and renal failure in undiagnosed patients. Here, we report a case of an adult asymptomatic male with bilateral RLM which was detected as an incidental finding on ultrasound. Confirmation by CT-scan and laboratory diagnosis of aspirated fluid was done, and patient was managed conservatively.

Role of 64 slice multidetector computed tomography and angiography to establish relationship between tumor size, aneurysm formation and spontaneous rupture of renal angiomyolipomas: Single center experience.

OBJECTIVE: To evaluate the role of computed tomography (CT) angiography using 64 slice multidetector CT scan to establish relationships among tumor size, aneurysm formation, and spontaneous rupture of renal angiomyolipomas (AML). MATERIALS AND METHODS: Total 27 patients were diagnosed as having renal angiomyolipoma (AML) at institute of kidney disease and research center from June 2008 to June 2015. All patients with renal AML underwent contrast-enhanced CT (CECT) with CT angiography with 64 slice multidetector CT scan. RESULTS: Total 34 kidneys were found to be affected by AML. Out of which 6 AML were ruptured and remaining 28 were unruptured. If tumor size of 4 cm or larger is used as predictor of rupture; sensitivity 20%, specificity 89%, positive predictive value 83.3%, and negative predictive value 28.5%; and If aneurysm size >5 mm is used as predictor of rupture; sensitivity 75%, specificity 90%, positive predictive value 50%, and negative predictive value 96.4% was found. CONCLUSION: Tumor size, aneurysm size and tumor multiplicity cannot use as a predictor of spontaneous rupture of the tumor.

Comparison between doppler ultrasound resistive index, serum creatinine, and histopathologic changes in patients with kidney transplant dysfunction in early posttransplantation period: A single center study with review of literature.

To determine the relationship between resistive index (RI) measured by Doppler ultrasound, serum creatinine (SCr), and histopathological changes on biopsy during kidney trans- plant dysfunction in early postoperative period, we studied 47 kidney transplant patients; 61% of the patients had acute transplant rejection, 19% had acute tubular necrosis, 4% had calcineurin inhibitor toxicity, 11% had normal morphology in biopsy, and 5% had changes compatible with pyelonephritis. None of the study patients had interstitial fibrosis or tubular atrophy on biopsy. We found that the sensitivity and specificity of RI in diagnosing transplant dysfunction was highly variable depending on the selected cutoff value. Sensitivity of RI decreased and its specificity increased with increasing the RI thresholds. Using an RI threshold of 0.7 resulted in a high sensitivity of 78% at a cost of very low specificity 40%, whereas using an RI threshold of 0.9 resulted in 100% specificity at a cost of very low sensitivity 16%. Acceptable specificity was only achieved at the expense of very low sensitivity, resulting in poor utility of RI as a screening tool for dysfunction. We found that there were no significant differences in the mean RI value between patients with and without biopsy-proven transplant dysfunction. However, we found a significant correlation between SCr value and RI of 0.383, P = 0.007.

Rare Anatomical Variation of Dual IVC with Left Sided IVC Draining into Hemiazygous Vein- A Case Report.

Congenital anomalies of the Inferior Vena Cava (IVC) result from the persistence of the embryonic venous system. Knowledge of such anomaly is of great importance during abdominal surgery, liver and kidney transplantation, renal venous sampling and in the treatment of thromboembolic diseases. Here, we report a rare anatomical variation of dual IVC with normal course of right sided IVC and hemiazygous continuation of left sided IVC with interiliac communication in potential renal donor. Congenital abnormalities of the inferior vena cava are easily identified on Computed Tomography (CT) and should be considered when interpreting any CT of the abdomen or chest.