scholarly journals A Case of Complete Renal Duplex with H-Shaped Ureter

2012 ◽  
Vol 2012 ◽  
pp. 1-2 ◽  
Author(s):  
A. Ghobashy ◽  
M. El-Shazly ◽  
A. Lari ◽  
O. Al-Hunaidy ◽  
A. Allam ◽  
...  
Keyword(s):  
Rare Anomaly ◽  
Noncontrast Ct ◽  
Retrograde Ureteropyelography

We present a case of complete renal duplex with H-shaped double ureter opening into the bladder with 2 separate orifices. It is an extremely rare variety of renal duplex which was reported only once in the literature. Fifty-four-year-old male presented to our department with right renal pain. Noncontrast CT revealed stone midthird right ureter with duplex right kidney. Retrograde ureteropyelography and ureteroscopy revealed this rare anomaly.

Development and evaluation of a patient-specific surgical simulator for endoscopic colloid cyst resection

2020 ◽  
Vol 133 (2) ◽  
pp. 521-529 ◽  
Author(s):  
Vivek P. Bodani ◽  
Gerben E. Breimer ◽  
Faizal A. Haji ◽  
Thomas Looi ◽  
James M. Drake
Keyword(s):  
Choroid Plexus ◽  
Computer Aided Design ◽  
Third Ventricle ◽  
Colloid Cyst ◽  
Comfort Level ◽  
Complex Case ◽  
Patient Specific ◽  
Surgical Simulator ◽  
Perceived Realism ◽  
Noncontrast Ct

OBJECTIVEEndoscopic resection of third-ventricle colloid cysts is technically challenging due to the limited dexterity and visualization provided by neuroendoscopic instruments. Extensive training and experience are required to master the learning curve. To improve the education of neurosurgical trainees in this procedure, a synthetic surgical simulator was developed and its realism, procedural content, and utility as a training instrument were evaluated.METHODSThe simulator was developed based on the neuroimaging (axial noncontrast CT and T1-weighted gadolinium-enhanced MRI) of an 8-year-old patient with a colloid cyst and hydrocephalus. Image segmentation, computer-aided design, rapid prototyping (3D printing), and silicone molding techniques were used to produce models of the skull, brain, ventricles, and colloid cyst. The cyst was filled with a viscous fluid and secured to the roof of the third ventricle. The choroid plexus and intraventricular veins were also included. Twenty-four neurosurgical trainees performed a simulated colloid cyst resection using a 30° angled endoscope, neuroendoscopic instruments, and image guidance. Using a 19-item feedback survey (5-point Likert scales), participants evaluated the simulator across 5 domains: anatomy, instrument handling, procedural content, perceived realism, and confidence and comfort level.RESULTSParticipants found the simulator’s anatomy to be highly realistic (mean 4.34 ± 0.63 [SD]) and appreciated the use of actual instruments (mean 4.38 ± 0.58). The procedural content was also rated highly (mean 4.28 ± 0.77); however, the perceived realism was rated slightly lower (mean 4.08 ± 0.63). Participants reported greater confidence in their ability to perform an endoscopic colloid cyst resection after using the simulator (mean 4.45 ± 0.68). Twenty-three participants (95.8%) indicated that they would use the simulator for additional training. Recommendations were made to develop complex case scenarios for experienced trainees (normal-sized ventricles, choroid plexus adherent to cyst wall, bleeding scenarios) and incorporate advanced instrumentation such as side-cutting aspiration devices.CONCLUSIONSA patient-specific synthetic surgical simulator for training residents and fellows in endoscopic colloid cyst resection was successfully developed. The simulator’s anatomy, instrument handling, and procedural content were found to be realistic. The simulator may serve as a valuable educational tool to learn the critical steps of endoscopic colloid cyst resection, develop a detailed understanding of intraventricular anatomy, and gain proficiency with bimanual neuroendoscopic techniques.

scholarly journals Periodontal Manifestations in a Patient with Haim-Munk Syndrome

2010 ◽  
Vol 04 (03) ◽  
pp. 338-340
Author(s):  
Kamile Erciyas ◽  
Serhat Inaloz ◽  
A. Fuat Erciyas
Keyword(s):  
Autosomal Recessive ◽  
Alveolar Bone ◽  
Bone Destruction ◽  
Autosomal Recessive Disorder ◽  
Aggressive Periodontitis ◽  
Pes Planus ◽  
Rare Autosomal Recessive Disorder ◽  
Rare Anomaly ◽  
Palmoplantar Hyperkeratosis

Haim-Munk syndrome is an extremely rare autosomal recessive disorder characterized clinically by palmoplantar hyperkeratosis, aggressive periodontitis with severe alveolar bone destruction, onychogryphosis, pes planus, arachnodactyly, and acro-osteolysis. Consanguinity seems a notable prerequisite. The aim of this study was therefore to report one case of this syndrome and to focus on the periodontal manifestations, in order to attract the attention of dental clinicians to this rare anomaly. (Eur J Dent 2010;4:338-340)

scholarly journals All four coronary arteries arising separately from the right aortic sinus of Valsalva: rare anomaly

2019 ◽  
Vol 12 (4) ◽  
pp. e229498
Author(s):  
Raghvendra Choudhary ◽  
Aditya Batra ◽  
Vinay Malik ◽  
Kunal Mahajan
Keyword(s):  
Coronary Arteries ◽  
Sinus Of Valsalva ◽  
Aortic Sinus ◽  
Rare Anomaly ◽  
The Right

Bilateral absence: A rare anomaly of the gemelli muscles

Morphologie ◽  
2021 ◽  
Author(s):  
A. Abdulhameed ◽  
I.M Ahmed ◽  
S.S. Bello
Keyword(s):  
Rare Anomaly ◽  
Bilateral Absence

scholarly journals Bilateral scrotoshisis a rare entity: case report

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Shazia Perveen ◽  
Mishraz Shaikh ◽  
Sajid Ali
Keyword(s):  
Case Report ◽  
Rare Entity ◽  
Case Presentation ◽  
Rare Anomaly ◽  
Normal Term ◽  
Twin Delivery

Abstract Background Scrotoschisis is a rare anomaly in which the testis is lying outside scrotum congenitally. Only few cases have been reported in literature under different names most of which are unilateral. We have found only one case of bilateral scrotoschisis in literature. Case presentation Newborn presented to us after normal term twin delivery as a case of bilateral scrotoschisis in which both testes were lying outside the scrotum congenitally. Baby underwent uneventful bilateral orchiopexy and was discharged home the next day. Conclusion Scrotoschisis is a very rare genital anomaly with only a few cases reported in literature. This report would add to the literature which would help in studying the exact mechanism and embryopathogenesis of this anomaly which is not known yet.

scholarly journals Congenital ostial atresia of right coronary artery: an exceedingly rare anomaly diagnosed on CT angiography

2019 ◽  
Vol 12 (7) ◽  
pp. e230377
Author(s):  
Niraj Nirmal Pandey ◽  
Manish Shaw ◽  
Sanjeev Kumar
Keyword(s):  
Coronary Artery ◽  
Ct Angiography ◽  
Right Coronary Artery ◽  
Rare Anomaly

scholarly journals P18.01: A rare anomaly in twin pregnancy acardiac twin: the role of ultrasound diagnostic

2014 ◽  
Vol 44 (S1) ◽  
pp. 290-290
Author(s):  
Z. Tatic Stupar ◽  
M. Bogavac ◽  
D. Stajic
Keyword(s):  
Twin Pregnancy ◽  
Acardiac Twin ◽  
Rare Anomaly

Abstract TP10: Prediction of Thrombolytic Efficacy: Usefulness of Measurement of Enhancement in the Thrombus on Thin-reconstructed Perfusion CT

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Dong Hoon Shin ◽  
Eung Yeop Kim
Keyword(s):  
Collateral Circulation ◽  
Motion Correction ◽  
Hounsfield Unit ◽  
Spiral Ct ◽  
Perfusion Ct ◽  
Vascular Imaging ◽  
Escape Trial ◽  
Tissue Plasminogen ◽  
Noncontrast Ct

Purpose: To directly measure enhancement in acute thrombi using thin-reconstructed perfusion CT images for prediction thrombolytic efficacy. Materials and Methods: Prior to administration of tissue plasminogen activator (tPA), noncontrast CT (NCCT), 60-second 70-kVp adaptive 4D spiral CT (CTP), and CT angiography (CTA) were prospectively obtained and reconstructed at 1-mm thickness. Length and Hounsfield unit ratio (HUr) of thrombus were measured using 1-mm NCCT. Collateral circulation was assessed on dynamic CTA that were reconstructed from 1-mm CTP images. Good collateral circulation was defined as the criteria that were used for ESCAPE trial. After spatial motion correction of 1-mm CTP images, circular regions of interest were drawn in the central portion and each end of thrombus to measure the level of HU increase from baseline on time-attenuation curves (TAC). Recanalization was assessed on follow-up vascular imaging studies that were obtained within 24 hours after tPA. Modified TICI 2b or 3 was considered successful recanalization. Thrombus length, HUr, collaterals, and minimum increase of HU on TAC (HUmin) were compared between the recanalized and non-recanalized groups. Results: Of 57 patients who received tPA therapy, 31 patients (female, 13; mean age, 66.5 years) with occlusions in ICA (n=7), M1 (n=8), M1-M2 (n=6), and M2 (n=10) were only assessed. Thrombus length ranged 3-45 mm (median, 12 mm; IQR, 7). HUr was measured from 1.03 to 1.69 (median, 1.26; IQR, 0.19). Good collaterals were noted in 27 patients. HUmin ranged 3-70 HU (median, 15; IQR, 12), and showed negative correlation with thrombus length (rho=-0.410, P=0.022), but not with HUr. HUmin was significantly higher in the recanalized group (n=19) than the non-recanalized group (mean HUmin 23.79 vs 7.83; P<0.0001) independent of thrombus location. Thrombus length, HUr, or collateral status was not significantly different between the two groups. HUmin > 13 was determined with sensitivity of 89.5%, specificity of 91.7%, and AUC of 0.961 for prediction of recanalization. Conclusion: HUmin of thrombus was significantly higher in patients with successful recanalization after tPA therapy.

scholarly journals A graph-cut approach for pulmonary artery-vein segmentation in noncontrast CT images

2019 ◽  
Vol 52 ◽  
pp. 144-159 ◽  
Author(s):  
Daniel Jimenez-Carretero ◽  
David Bermejo-Peláez ◽  
Pietro Nardelli ◽  
Patricia Fraga ◽  
Eduardo Fraile ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Ct Images ◽  
Graph Cut ◽  
Noncontrast Ct
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