Is it Smoke and Mirrors? Detection of Inferior Vena Cava Thrombus by Focused Cardiac Ultrasound.

ABSTRACT: Inferior vena cava assessment is a standard component of focused cardiac ultrasound, traditionally used to qualify intravascular volume status. In this case series, we demonstrate that pediatric focused cardiac ultrasound can also diagnose inferior vena cava thrombi and masses, while distinguishing them from a potentially benign smoke-like artifact.

Ultrasound-assisted Lumbar Puncture for Obese Pediatric Oncology Patients: A Feasibility Study.

Lumbar punctures (LPs) are performed frequently on children with leukemia and lymphoma as part of the standard of care. They are typically performed by pediatric oncology providers for both diagnostic and therapeutic interventions with the aid of moderate or deep sedation. Point-of-Care Ultrasound (POCUS) has emerged as a promising strategy to aid in LP procedures and has been found to be associated with lower number of attempts, and higher success rates. We describe our experience using POCUS to assist with LPs in a subgroup of pediatric oncology patients identified to be procedurally difficult secondary to obesity. This collaboration was well received and resulted in successful LPs in most (8/9) cases. This is a promising modality to improve the delivery of care and LP success in pediatric oncology patients.

Carotid Space Mass Proximal to Vagus Nerve Causing Asystole and Syncope.

Manipulation of vagal nerve rootlets, whether surgical or through mass effect of a neoplasm, can result in asystole and hypotension, accompanied by ST depression and right bundle branch block. There are few case reports of a neoplasm causing these effects, and this case describes a patient with such a mass presenting with syncopal episodes. A 43-year-old man with a past medical history of HIV, bipolar disorder, and epilepsy was admitted to the neurology service for a video electroencephalogram (vEEG) to characterize syncopal episodes that were felt to be epileptic in origin. During the study, he experienced symptoms of his typical aura, which correlated with a transient symptomatic high degree AV block on telemetry, and an absence of epileptic findings on vEEG. Magnetic Resonance Imaging (MRI) of the brain showed a mass in the left posterior carotid space at the skull base. The patient underwent permanent dual chamber MRI-compatible pacemaker placement for his heart block. His syncopal episodes resolved, but presyncopal symptoms persisted. We discuss the presentation and treatment of vagal neoplasms.

Clear Cell Adenocarcinoma of the Lung Mimicking Clear Cell Renal Cell Carcinoma.

We present an unusual manifestation of a malignancy in a 61-year-old female who presented clinically and cytologically with what appeared to be clear cell renal cell carcinoma, but was found with immunohistochemistry to be clear cell adenocarcinoma of the lung. The patient presented with CT imaging demonstrating a mass in the left kidney, and cytologically, the tumor cells had high nuclear grade and clear cytoplasm. However, immunohistochemically, a positive TTF-1 nuclear stain and CK7+/CK20- profile demonstrated that these cells were of lung primary. The patient did not respond to a round of carboplatin and pemetrexed, and the patient was discharged to a hospice for pain management and palliative care.