A Multi-institutional Analysis of Factors Influencing the Rate of Positive MRI Biopsy Among Women with Early-Stage Breast Cancer.

Background: The use of preoperative magnetic resonance imaging (MRI) for early-stage breast cancer (ESBC) is increasing, but its utility in detecting additional malignancy is unclear and delays surgical management (Jatoi and Benson in Future Oncol 9:347-353, 2013. https://doi.org/10.

Calcific Peritendinitis in the Gluteus Maximus Tendon.

Background: Calcific tendinitis is classically a painful condition that most commonly affects the rotator cuff, but may infrequently involve other tendons.

Case Report: We discuss a 57-year-old man who presented to the emergency department with a 4-day history of right hip pain, described as the "worst pain in (his) life." The pain was first noticed at night and had progressively worsened.

The Association of Preoperative Magnetic Resonance Imaging (MRI) With Surgical Management in Patients With Early-Stage Breast Cancer.

Introduction: The rate of mastectomy in lumpectomy-eligible patients with unilateral breast cancer is increasing. We sought to investigate the association between magnetic resonance imaging (MRI) and surgical management of patients with early-stage breast cancer by comparing the rate of mastectomy as first surgery in patients with and without preoperative MRI.

Methods: A bi-institutional retrospective study included patients diagnosed between 2016 and 2020.

The natural history of untreated estrogen receptor-positive, Her2-negative invasive breast cancer.

Background: Using prior mammograms from patients with delays in their breast cancer diagnoses, we sought to describe in-vivo growth kinetics of untreated breast cancer to determine if the time they became clinically apparent can be predicted.

Methods: Patient and tumor characteristics were collected from those who presented with "missed," untreated breast cancer to a breast center in a single institution. Only patients whose biopsied masses revealed estrogen receptor-positive, Her2-negative (ER+/Her2-) invasive cancers were included.

MRI of placenta accreta: a new imaging perspective.

Objective: The goal of this study was to identify new MR criteria and review established MR criteria for the diagnosis of placenta accreta. MR images of all patients presenting to our department for evaluation of placenta accreta over the previous 5 years were reviewed and findings were correlated with surgical pathology.

Conclusion: We found the most sensitive MR criteria for the diagnosis of invasive placentation to be abnormal placental vascularity in addition to the previously described intraplacental T2 dark bands.

Evidence of cerebral reorganization following perinatal stroke demonstrated with fMRI and DTI tractography.

A 44-year-old man with a left perinatal stroke and recurrent refractory epilepsy underwent functional MRI (fMRI) for motor and language mapping to determine if further epilepsy surgery could be performed without loss of language. Language was activated excessively in the right hemisphere, with only small areas of left hemisphere activation. This suggests bilateral language dominance acquired secondary to the perinatal stroke with the right hemisphere activation resulting from neonatal neuronal reorganization.

Normal ureter size on unenhanced helical CT.

Objective: Unenhanced helical CT is the imaging method of choice when evaluating patients with acute flank pain and suspected ureterolithiasis. In addition to directly identifying stones in the lumen of the ureter, CT secondary signs of obstruction such as ureteral dilatation are frequently present and can be helpful in establishing a diagnosis. The purposes of this study were to define ureteral dilatation on unenhanced helical CT and determine the range of normal ureter size.