Intestinal anisakiasis: CT imaging findings-a 10-year descriptive study in a single center.

PURPOSE: The aim of this study was to retrospectively review cases of intestinal anisakiasis diagnosed by CT over a 10-year period and to evaluate imaging findings associated with the disease. METHODS: This retrospective study included 71 patients with clinical suspicion of intestinal anisakiasis in whom an abdominopelvic computed tomography (CT) was performed at a single institution between June 2011 and December 2021. To identify the cases, we used medical term search engines and the hospital's radiology case database. Clinical information was gathered from the medical records. A radiologist with five years of experience reviewed and analyzed the CT images to determine the characteristic findings of intestinal anisakiasis. RESULTS: The study included 47 confirmed cases of intestinal anisakiasis. The mean age of the patients was 52 years (range 18-87 years), being more frequent in men than women (26:21). All patients reported ingestion of raw fish, most commonly anchovies in vinegar (30/47, 63,8%). Abdominal pain was the predominant symptom, accompanied by nausea, vomiting, and occasionally fever. The most common clinical suspicions were intestinal obstruction (14/47, 29,8%) and appendicitis (10/47, 21,3%), whereas intestinal anisakiasis was suspected in only 2 cases prior to imaging. CT showed thickening of the bowel wall with submucosal edema in all patients, predominantly involving the ileum (43/47, 91,5%), usually in a relatively long segment (mean of 17,5 cm, range 10-30 cm). Simultaneous involvement of multiple bowel segments was observed in 16 cases (34%). Intestinal obstruction with dilatation of proximal loops (33/47, 70,2%), ascites (45/47, 95,7%), and mesenteric fat striation (32/47, 68,1%) were also common findings. CONCLUSION: This study demonstrates the value of computed tomography in suggesting the diagnosis of intestinal anisakiasis, which often presents with nonspecific clinical manifestations. The characteristic CT findings that provide diagnostic clues are bowel wall thickening with submucosal edema, typically involving a long segment of the ileum, with signs of intestinal obstruction, ascites, and mesenteric fat striation. Simultaneous involvement of several intestinal segments (typically the gastric antrum and right colon) is an additional finding to be considered and may provide a diagnostic clue.

Traumatic arterial injuries in upper and lower limbs: what every radiologist should know.

Traumatic arterial injuries of the extremities are a rare but potentially fatal event. Computed tomography (CT) angiography of the extremities has become the technique of choice and can provide rapid accurate detection and characterization of vascular lesions. Vascular injuries can be classified in active hemorrhage, vasospasm, occlusion, post-traumatic arteriovenous fistula, pseudoaneurysm, and patterns of intimal injuries. The learning objectives of this pictorial essay are to review the normal arterial anatomy of the upper and lower limbs, describe the technique of CT angiography in vascular trauma of the extremities, describe and illustrate the CT-angiography findings of traumatic arterial injuries, and know the potential pitfalls when interpreting a CT-angiography of the extremities.

Hemorrhagic cholecystitis: ultrasound and CT imaging findings-a retrospective case review series.

PURPOSE: Gallbladder pathology is diverse, and imaging tests are essential tools for its diagnosis. Acute cholecystitis has multiple manifestations or complications, one of which is hemorrhagic cholecystitis (HC). In the current literature, this pathology has been described only in the spectrum of acute cholecystitis complications, case reports, or series with a maximum of 2 to 3 cases. After a retrospective review, we present 11 cases of hemorrhagic cholecystitis and discuss its various causes, clinical presentations, and findings on ultrasound (US) and computed tomography (CT), considering dual-energy CT and magnetic resonance imaging (MRI). METHODS: A retrospective review of 6 years (2012-2018) of hemorrhagic cholecystitis cases diagnosed at our hospital was performed. A search engine of medical terms was used and the database of radiological cases in the emergency department of the hospital. After a careful review by two emergency and one abdominal radiologists, 11 patients were identified as hemorrhagic cholecystitis cases according to their clinical, radiological, and surgical records and confirmed with pathology reports. RESULTS: Both lithiasis and anticoagulation/antiplatelet therapy were the most common etiologies found (9 patients, 82%). The clinical presentation may be misleading, simulating a usual cholecystitis episode with abdominal pain, nausea, and vomiting, or manifesting with signs of bile duct obstruction, hematemesis, or anemia that may compromise the patient hemodynamically and become fatal. US is useful, but CT is the most complete test for evaluating hemorrhagic cholecystitis and was performed in all the patients. The common findings were inflammatory changes in all patients (100%), hemobilia in 10 patients (91%), hemoperitoneum in 6 patients (55%), intestinal bleeding in 3 patients (27%), and occasionally perihepatic hematomas or signs of active bleeding. CONCLUSION: Although a rare entity, hemorrhagic cholecystitis may be present, and management can be delayed if the appropriate imaging modality is not used for diagnosis.

Grade 3a Clavien grade complication following percutaneous nephrolithotomy. Related factors and review of the literature.

OBJECTIVE: We review the literature about bleeding complications of percutaneous nephrolithotomy (PCNL) and the application of the modified Clavien system classification. METHODS: We present a 38 year old man who underwent left PCNL with acute severe hematuria during the immediate postoperatory time. We review the literature and analyze the usefulness of the modified Clavien system to grade perioperative complications. RESULTS: Conservative management was insufficient so we had to perform arteriography and superselective embolization to solve the acute arterial bleeding. According to Clavien's classification, our case would be included within the grade 3a group complications. CONCLUSIONS: The complications following a PCNL are not uncommon. However most of them are not severe. The modified Clavien system, used for classifying complications after performing PCNL, can be useful for reporting results in an objective and replicable way.

Stump appendicitis: preoperative imaging findings in four cases.

Appendiceal stump appendicitis is a rare entity caused by inflammation of the appendiceal remnant after incomplete appendectomy. We describe four patients with inflammations of the appendiceal stump, which were preoperatively diagnosed using ultrasonography and/or multidetector computed tomography. Stump appendicitis is a complication that should be taken into consideration when patients with a history of appendectomy present with right lower quadrant pain. Imaging techniques play a key role in the diagnosis.

Role of multidetector CT in the management of acute female pelvic disease.

The purpose of this study is to highlight the role of multidetector CT (MDCT) in emergency radiology as a useful tool in the diagnosis and management of acute female pelvic disease and to describe key radiologic signs to improve differential diagnosis. We restrospectively reviewed MDCT findings of acute pelvic disease and its mimics in women reporting to the emergency room at our institution from December 2006 to August 2008. We describe MDCT findings of gynecologic and obstetric disorders such as hemorrhagic ovarian cysts, ovarian torsion, pelvic inflammatory disease, ruptured ectopic pregnancy, intravascular leiomyomatosis, blunt maternal trauma, and postpartum and post-cesarean section complications. We also briefly review gastrointestinal tract entities that may mimic these conditions. Although ultrasound is the imaging modality of choice for the evaluation of female pelvic pain, the role of MDCT remains essential in the management of patients in which gynecologic exploration is not diagnostic or undone since it is not the initial suspicion.

Factores relacionados con una complicación grado IIIa de Clavien tras una nefrolitotomía percutánea. Revisión de la literatura / Grade 3a Clavien grade complication following percutaneous nephrolithotomy. Related factors and review of the literature

OBJETIVO: Revisamos la literatura a propósito de las complicaciones hemorragicas derivadas de una Nefrolitotomia Percutánea (NLP) y la aplicación del sistema modificado de Clavien para su clasificación. MÉTODOS: Presentamos el caso de un varón sometido a una NLP izquierda que presentó de forma aguda durante el postoperatorio inmediato una hematuria severa y anemizante secundaria a un sangrado arterial. Revisamos la literatura al respecto y analizamos la utilidad del sistema de clasificación de Clavien para las complicaciones quirúrgicas. RESULTADOS: Mediante arteriografía y embolización percutánea supraselectiva del vaso sangrante se consiguió el control definitivo del sangrado arterial. Representado así una complicación grado IIIa según el sistema de Clavien. CONCLUSIONES: Las complicaciones tras una NLP, en su mayoría leves, no son infrecuentes. El sistema modificado de Clavien adaptado para clasificar las complicaciones tras una NLP puede ser de utilidad para notificar resultados de forma objetiva y reproducible

OBJECTIVE: We review the literature about bleeding complications of percutaneous nephrolithotomy (PCNL) and the application of the modified Clavien system classification. METHODS: We present a 38 year old man who underwent left PCNL with acute severe hematuria during the immediate postoperatory time. We review the literature and analyze the usefulness of the modified Clavien system to grade perioperative complications. RESULTS: Conservative management was insufficient so we had to perform arteriography and superselective embolization to solve the acute arterial bleeding. According to Clavie's classification, our case would be included within the grade 3a group complications. CONCLUSIONS: The complications following a PCNL are not uncommon. However most of them are not severe. The modified Clavien system, used for classifying complications after performing PCNL, can be useful for reporting results in an objective and replicable way