Incidental Discovery of Hepatocellular Carcinoma on 18F-PSMA PET CT Performed for Prostate Cancer Reassessment.

Prostate-specific membrane antigen positron emission tomography (PSMA PET) has been approved by the Food and Drug Administration (FDA) to identify prostate cancer in the setting of biochemical recurrence but can also identify other malignancies. 18F-PSMA PET has not been studied as a potential tool for hepatocellular carcinoma (HCC). We describe the case of a 76-year-old male with a rising prostate-specific antigen (PSA) after definitive prostate cancer treatment and no prior liver pathology who was incidentally found to have HCC on 18F-PSMA PET.

PCL preservation or sacrifice does not influence clinical outcomes and survivorship at mid-term follow-up of a J-curve CR total knee replacement with a medial congruent liner and a functional coronal alignment.

Background: In recent years, increasing interest has arisen for medial pivoting TKA implants, designed to mimic the physiological knee kinematics, maximizing the contact area on the medial compartment of the knee, increasing anterior-posterior stability, and contributing to a ball-in-socket effect that allows the posterior cruciate sacrifice without a post-CAM mechanism. The medial congruent liner works with a J-curve cruciate-retaining (CR) femur without a real ball-in-socket design. The aim of this study was to evaluate the clinical outcomes and survival of these implants, with or without PCL sparing, at a medium follow-up.

Differentiating Oncocytic Renal Tumors from Chromophobe Renal Cell Carcinoma: Comparison of Peak Early-phase Enhancement Ratio to Clinical Risk Factors and Rater Predictions.

Background: Most surgically resected benign renal tumors are found to be oncocytomas or indolent hybrid oncocytic tumors, which are difficult to differentiate from chromophobe renal cell carcinoma (chRCC) on renal mass biopsy. Both often exhibit CD117 staining.

Objective: To evaluate the ability of the peak early-phase enhancement ratio (PEER) to distinguish oncocytomas from chRCC and compare its discrimination to traditional clinical risk factors and blinded clinical raters.

Evaluation of lymphocytic thyroiditis in children with quantitative gray-scale ultrasound echo intensity using a PACS-based tool.

Purpose: To evaluate diagnostic performance of PACS-based quantitative gray-scale ultrasound as an objective method in evaluation of pediatric thyroiditis.

Methods: Quantitative measurements of the echo-intensity level of the thyroid were obtained from ultrasound images, retrospectively using a PACS-based tool in 37 children with the tissue-proven diagnosis. Thyroid/muscle ratio was calculated by dividing the mean echo intensity of thyroid by that of adjacent strap muscle.

Integration of Peer Review in PACS Results in a Marked Increase in the Discrepancies Reported.

The objective of this article is to assess the impact of integrating peer review in PACS on the reporting of discrepancies. Our hypothesis is that a PACS-integrated machine-randomized and semiblinded peer review tool leads to an increase in discrepancies reported. A PACS tool was implemented to prompt radiologists to perform peer review of prior comparison studies in a randomized fashion.

Mixed Epithelial and Stromal Tumor of the Kidney with Extension into Inferior Vena Cava: Case Report and Discussion of Adult Biphasic Cystic Renal Lesions and the Significance of Vascular Involvement.

Mixed epithelial and stromal tumor (MEST) is a biphasic adult renal lesion composed of solid and cystic areas containing spindle cell stroma and epithelium that lines the tubules and cystic spaces. While most MEST lesions are benign, rare cases with malignant morphology and biology have been reported. We present a case of mixed epithelial and stromal tumor of the kidney (MEST) with extension into the inferior vena cava in a young adult male.

Proof of Concept: Design and Initial Evaluation of a Device to Measure Gastrointestinal Transit Time.

Chronic constipation and gastrointestinal motility disorders constitute a large part of a gastroenterology practice and have a significant impact on a patient's quality of life and lifestyle. In most cases, medications are prescribed to alleviate symptoms without there being an objective measurement of response. Commonly used investigations of gastrointestinal transit times are currently limited to radiopaque markers or electronic capsules.

Managing Written Directives: A Software Solution to Streamline Workflow.

A written directive is required by the U.S. Nuclear Regulatory Commission for any use of I above 1.

Prospective study of cardiac sarcoid mimicking arrhythmogenic right ventricular dysplasia.

Introduction: Case studies indicate that cardiac sarcoid may mimic the clinical presentation of arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C); however, the incidence and clinical predictors to diagnose cardiac sarcoid in patients who meet International Task Force criteria for ARVD/C are unknown.

Methods And Results: Patients referred for evaluation of left bundle branch block (LBBB)-type ventricular arrhythmia and suspected ARVD/C were prospectively evaluated by a standardized protocol including right ventricle (RV) cineangiography-guided myocardial biopsy. Sixteen patients had definite ARVD/C and four had probable ARVD/C.

Malignant-appearing microcalcifications at the lumpectomy site with the use of FloSeal hemostatic sealant.

Objective: The aim of this article is to describe the benign mammographic calcifications that occur at the lumpectomy site after the use of a topical hemostatic sealant (FloSeal Matrix Hemostatic Sealant). These calcifications can have an appearance similar to that of recurrent carcinoma.

Conclusion: Application of FloSeal hemostatic sealant in the lumpectomy cavity results in benign mammographic microcalcifications that could be misinterpreted as malignant.

Role of breast sonography in imaging of adolescents with palpable solid breast masses.

Objective: The purpose of this study was to assess the role of sonography in the diagnosis and management of palpable solid breast masses in adolescents and to correlate the sonographic findings with the histopathologic findings and clinical outcome.

Materials And Methods: A retrospective study was conducted with the breast sonograms of 20 adolescent girls 13-19 years old who presented with palpable breast masses found to be solid at breast sonography. The Stavros sonographic criteria were used to assess the benignity or malignancy of solid breast masses.

Correlation of PET standard uptake value and CT window-level thresholds for target delineation in CT-based radiation treatment planning.

Purpose: To develop standardized correlates of [18F]fluoro-2-deoxy-d-glucose positron emission tomography (FDG-PET) standard uptake value (SUV) to computed tomography (CT)-based window and levels.

Methods And Materials: Nineteen patients with non-small-cell lung cancer who underwent imaging with positron emission tomography (PET) and CT were selected. A method of standardizing SUV within CT planning software was developed.

Transobturator tape erosion associated with leg pain.

A 39 year-old vaginal multipara status postpubovaginal sling in 2002 and a transobturator tape procedure in 2004 presented with persistent stress incontinence and vaginal polypropylene mesh erosion. Ten days later, she presented to the emergency room with severe right groin pain, difficulty walking, fever, and chills. She described shooting pain originating from the right inguinal ligament radiating down her right leg anteriorly.

Diabetes mellitus: CT findings of unusual complications related to the disease: a pictorial essay.

Diabetes mellitus is a common multisystemic disorder with serious effects on the gastrointestinal tract, genitourinary system and soft tissues. The long-term effects of diabetes are mainly related to macro- and microvascular disease, neuropathy, both autonomic and somatic, and to an increased susceptibility to infections, which generally develop 15-20 years after the appearance of overt hyperglycemia. Herein, we discuss the unusual long-term complications related to the disease that can display a characteristic CT pattern.

Pediatric congenital vertebral artery arteriovenous malformation.

Vertebral arteriovenous fistulas are rare in children and the congenital form has been seldom reported in the literature. Prior to using endovascular therapy techniques, only surgery was the main treatment. The most common endovascular treatment is through the use of detachable balloons.