Liver Imaging Reporting and Data System (LI-RADS) is a comprehensive system that provides standardization in the interpretation and reporting of observations in patients at risk of developing hepatocellular carcinoma (HCC). Computed tomography/magnetic resonance imaging (CT/MRI) LI-RADS v2018 includes 8 diagnostic categories, which reflect the probability of benignity, malignancy in general, or HCC specifically. This article reviews the diagnostic categories of CT/MRI LI-RADS v2018, highlighting the key imaging features, diagnostic criteria, and management implications.
Background: Excision of multi-compartment deep infiltrating endometriosis with visceral involvement is challenging. We illustrate an interdisciplinary approach to complete minimally invasive excision in a single surgery. Case: We present a case of deep infiltrating endometriosis with visceral involvement in the anterior, middle, and posterior compartments. A collaborative surgical approach was taken with gynecologic, colorectal, and urologic surgeons to perform a robot-assisted total laparoscopic hysterectomy, bilateral salpingectomy, ovarian cystectomy, and unilateral oophorectomy with concurrent segmental resection of rectosigmoid and excision of transmural bladder and vaginal nodules. Conclusion: Thorough preoperative evaluation and an interdisciplinary approach to surgical planning involving radiology, gynecology, colorectal surgery, and urology allowed for complete simultaneous resection of bladder, rectosigmoid, and pelvic deep infiltrating endometriosis without complications via a minimally invasive route.
Over the past few decades, the incidence of head and neck squamous cell carcinomas in the pediatric population and tumors associated with oncogenic human papilloma virus (HPV) has continued to increase. Previously, head and neck cancers in young patients were considered rare and?only in patients with genetic risk factors, with clinicians unaware of these neoplasms?occurring with greater frequency in younger patients, and often associated with HPV infection. This article reviews the viral oncogenic properties of HPV and Epstein?Barr virus, what the biomarker p16 represents, and the salient clinical and radiographic features of these tumors. Clinical awareness of these features is important to identify these tumors and initiate appropriate therapeutic treatment and to avoid any delay in diagnosis.
Head and neck masses continue to be a common indication for neuroradiological evaluation of pediatric patients. Etiologies include inflammatory, congenital, benign neoplastic, and malignant neoplastic lesions. The incidence of childhood head and neck malignancy is increasing, and therefore should always be included in the differential diagnosis of a pediatric patient presenting with a space-occupying lesion of the head or neck. Many factors can aid in an accurate diagnosis, including age of the patient, location of the mass, and imaging features. This article will review several benign and malignant pediatric head and neck neoplasms, as well as congenital lesions, and focus on their imaging features.
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