Laila Azizi

University of Toronto | U of T · Woodsworth College

Our objective was to demonstrate the characteristic features of retroperitoneal lymphatic aneurysmal dilatation with three-dimensional (3D) magnetic resonance (MR) lymphography. Three-dimensional MR lymphography demonstrates that retroperitoneal lymphatic aneurysmal dilatation exhibits a continuous spectrum of change from normal variants to lymphat...

Il existe des limites multiples à l’analyse des voies biliaires en imagerie par résonance magnétique. Ces limites peuvent être de quatre ordres : techniques avec nécessité d’une analyse des reconstructions tridimensionnelles maximum intensity projection (MIP) volumiques mais également des images natives, utilisation de séquences pondérées en T1 obt...

There are many limitations to the examination of the bile ducts by magnetic resonance imaging, which may be four orders: (1) technical, requiring analysis of Maximum Intensity Projection (MIP) three-dimensional (3D) volume reconstructions as well as native images, the use of T1-weighted sequences obtained in 3D to avoid entry slice phenomena, and k...

Angiomyolipoma is a benign mesenchymal tumor of the PEComas group, which consists of three components in varying proportions: adipose tissue, smooth muscle cells and blood vessels. The hepatic localization is rare, less than 300 cases have been described in the literature. Depending on the predominant tissue component, hepatic angiomyolipoma can ta...

Angiomyolipoma is a benign mesenchymal tumor of the PEComas group, which consists of three components in varying proportions: adipose tissue, smooth muscle cells and blood vessels. The hepatic localization is rare, less than 300 cases have been described in the literature. Depending on the predominant tissue component, hepatic angiomyolipoma can ta...

Objective: The purpose of our article is to review the magnetic resonance imaging (MRI) features of nongynaecologic cystic lesions of the pelvis. Conclusion: The rising use of MRI for pelvic exploration will result in an increase in incidental detection of pelvic cystic cysts. Pelvic cysts of non gynecologic origin are less frequent than gynecol...

MRCP is a non-invasive cholangiographic technique used in detection and characterization of bile ducts abnormalities. MRCP features of primary sclerosing cholangitis are randomly distributed annular strictures alternating with slightly dilated bile ducts. Secondary sclerosing processes including ascending, ischemic, caustic, AIDS-related, eosinophi...

Objective The purpose of our study is to use MDCT and MR imaging to describe the normal ileal pouch and to identify features of Crohn’s disease (CD) relapse in patients after ileal pouch-anal anastomosis (IPAA). Conclusions After total colectomy followed by IPAA, features, optimally evaluated with pelvic MRI, such as fistulas, abscesses, pouch infl...

We report the findings of a patient with a history of mesenteric non-Hodgkin's B-cell lymphoma who presented with a fatal hemorrhage of the superior mesenteric artery.

Objective: The purpose of this article is to describe CT and MRI features of normal anatomy, variants, and pathologic conditions of different ileostomies. Conclusion: Multiplanar imaging techniques are useful to identify the complications related to stoma construction and preexisting disease. Understanding the indications for ileostomy construct...

Computed tomography (CT) is an important tool in the workup of patients with biliary emergencies. Optimal settings are mandatory to take full advantage of multidetector CT and to obtain the best multiplanar images with the lowest achievable radiation dose. CT is also part of an imaging strategy together with ultrasonography and magnetic resonance i...

Due to ongoing technological advances, the range of clinical applications for diffusion-weighted MR imaging has expanded to now include abdominal pathology. Current applications for liver pathology include two main directions. First, oncologic imaging with detection, characterization and follow-up of lesions. Second, evaluation of diffuse liver dis...

Due to ongoing technological advances, the range of clinical applications for diffusion-weighted MR imaging has expanded to now include abdominal pathology. Current applications for liver pathology include two main directions. First, oncologic imaging with detection, characterization and follow-up of lesions. Second, evaluation of diffuse liver dis...

PURPOSE/AIM To understand the mechanism of the volvulus depending on organs (stomach, small bowel, sigmoid, cecum, transverse colon, mesentery, congenital variety) To describe the variety of each volvulus in imaging with examples To review different imaging signs in volvulus and their value To emphasize early recognition of volvulus complication...

Connaître la gamme diagnostique des masses mésentériques.

Objectifs Decrire, expliquer les differents types de volvulus digestifs. Illustrer leur aspect radiologique en insistant sur la TDM. Discuter la place de l’imagerie dans leur diagnostic positif, etiologique et leurs complications. Points cles Les volvulus peuvent interesser la quasi-totalite des organes du tube digestif. L’imagerie joue un role imp...

Objectifs Connaitre la presentation clinique du syndrome de Fitz-Hugh-Curtis. Reconnaitre les signes tomodensitometriques observes lors de ce syndrome. Determiner la place du scanner dans l’exploration des douleurs febriles de l’hypocondre droit. Points cles Le syndrome de Fitz-Hugh-Curtis se presente generalement par une douleur febrile de l’hypoc...

Magnetic resonance imaging (MRI) features of 11 surgically resected pelvic tailgut cysts were analyzed with reference to histopathologic and clinical data. Homogeneity, size, location, signal intensity, appearance and presence of septa and/or nodules and/or peripheral rim and involvement of surrounding structures were studied. Histological examinat...

Cystic lesions of the pancreas, with an estimated prevalence of 20%, frequently are incidental findings at imaging on asymptomatic patients. Pseudocysts, typically in a setting of pancreatitis, should first be excluded. Characterization of cystic tumors is more complicated. Still, it is important to differentiate between benign and malignant lesion...

Cystic lesions of the pancreas, with an estimated prevalence of 20%, frequently are incidental findings at imaging on asymptomatic patients. Pseudocysts, typically in a setting of pancreatitis, should first be excluded. Characterization of cystic tumors is more complicated. Still, it is important to differentiate between benign and malignant lesion...

The quality of magnetic resonance cholangiopancreatography (MRCP) images is frequently degraded by high signal from the gastrointestinal tract on heavily T2W images. The purpose of this study is to evaluate pineapple juice (PJ) as an oral negative contrast agent in MRCP. Results from MRCP in 50 patients with PJ and 50 patients with paramagnetic con...

Objective: The abdominal and retroperitoneal lymphatic system is characterized by numerous anatomic variations. Our objective is to review MR lymphographic features of normal anatomy and abnormal conditions. Conclusion: MR lymphography is a noninvasive technique that is well suited for the examination of abdominal and retroperitoneal lymphatic v...

PurposeThe quality of magnetic resonance cholangiopancreatography (MRCP) images is frequently degraded by high signal from the gastrointestinal tract on heavily T2W images. The purpose of this study is to evaluate pineapple juice (PJ) as an oral negative contrast agent in MRCP.Materials and Methods Results from MRCP in 50 patients with PJ and 50 pa...

Our purpose was to examine the computed tomographic findings in 13 patients with acute deep venous thrombosis (DVT) of central veins of the neck, chest, and abdomen in whom major perivenous inflammatory changes were noted. During a 10-year period, 13 patients with acute DVT of 21 central veins and marked perivenous inflammatory changes on computed...

Blockade of parietal nociceptive afferents by the use of continuous wound infiltration with local anesthetics may be beneficial in a multimodal approach to postoperative pain management after major surgery. The role of continuous preperitoneal infusion of ropivacaine for pain relief and postoperative recovery after open colorectal resections was ev...

Objective: Pelvic magnetic resonance imaging (MRI) studies are widely used to assess the rectum, anal canal, and their environment. The purpose of this article is to review the current role of MRI in the evaluation of diseases involving the ischiorectal fossa and their imaging features. Conclusions: The radiologist plays an essential role in the...

The main problem associated with rectal cancer treatment is tumor recurrence. Randomized controlled studies have shown that adjuvant preoperative radiation therapy is effective for reducing local recurrence. These studies have also demonstrated that there are groups of rectal cancer patients with differing degrees of risk for local recurrence. At o...

Objective: Our objective is to describe pouchography, CT, and MRI features of the J-shaped pouch, both normal and with pouch-related complications. Conclusion: Pouchography is performed before closure of the loop ileostomy to assess the integrity of the ileal pouch and anastomosis. CT and MRI can be performed when postoperative complications, su...

The purpose of this study was to report a new technique for localization of hepatic tumors that are poorly visible with CT fluoroscopy. Forty-three hepatocellular carcinomas were not visible with CT fluoroscopy. A 22-gauge Chiba end-hole needle was inserted in the approximate location of a lesion estimated on the basis of anatomical landmarks demon...

The main problem associated with rectal cancer treatment is tumor recurrence. Randomized controlled studies have shown that adjuvant preoperative radiation therapy is effective for reducing local recurrence. These studies have also demonstrated that there are groups of rectal cancer patients with differing degrees of risk for local recurrence. At o...

Magnetic resonance (MR) imaging with cholangiopancreatographic sequences plays a critical role in evaluating alterations in the biliary tract after surgical procedures such as cholecystectomy, liver transplantation, hepatic resection, and the creation of a biliary-enteric anastomosis. MR cholangiopancreatography, a rapid, noninvasive, and accurate...