Pericardial Cyst, A Rare Incidental Finding in an Uncommon Location: A Case Report.

A pericardial cyst is one of the rare causes of mediastinal masses. Most of the cases are secondary to congenital incomplete fusion of the pericardial sac. More than two-thirds of the cases are present in the right cardiophrenic angle, and the left cardiophrenic angle is the second most common location. In our study, we illustrated an incidental finding of the pericardial cyst in a patient who presented with nonspecific symptoms and was found to have a left-sided cardiophrenic pericardial cyst, which is only found in about 20% of the cases. A CT scan and echocardiogram confirmed the diagnosis of a 4.39-centimeter cyst with no signs of complications like tamponade or pericarditis. As the patient's symptoms resolved, outpatient follow-up with serial echocardiogram was advised. Through this report, we aim to raise awareness of the importance of further investigation for nonspecific symptoms like atypical chest tightness and differentiating simple pericardial cysts from other pericardial lesions. Based on the symptoms, size, and compression effect of the cyst, management may vary from serial echocardiogram to aspiration or surgical resection.

Levine's Sign Points to Spontaneous Coronary Artery Dissection in a Healthy Young Male.

Levine's sign is a universal sign of ischemic chest pain, defined as an individual holding a clenched fist over the chest that has a low sensitivity but is relatively specific for ischemia. Spontaneous coronary artery dissection (SCAD) is a nonatherosclerotic and a very unusual cause of acute myocardial infarction.In literature, it has been more common in young women, postpartum, or with fibromuscular dysplasia. Strenuous exercise is a rare cause of SCAD. We describe a case of a healthy 46-year-old Hispanic male who presented to ER after his morning gym session. The initial EKG was unremarkable. However, due to Levine's sign, a repeat EKG was done and showed hyperacute T waves with J-point elevation in the anterior leads. An immediate coronary angiogram revealed a spontaneous coronary artery dissection in the mid-left anterior descending artery (LAD) segment. Given the resolution of the chest pain and thrombolysis in myocardial infarction (TIMI) 3 flow, no intervention was done. The patient was managed medically with an uneventful recovery. In the current times, with the advent of high sensitivity troponin along with other rapid multimodality imaging techniques, the importance of physical signs and symptoms like Levine's sign has diminished. Yet, they still remain a vital part of patient evaluation. Additionally, SCAD is uncommon in males. However, this patient was consuming energy booster powder that may have predisposed him to the SCAD. In our opinion, Levine's sign still has high clinical value in the right context. We also postulate that energy booster supplements may have serious deleterious cardiovascular effects, and large studies are necessary to understand their full effects on the cardiovascular system.

SARS-CoV-2 Associated With Pneumothorax: A Case Report and Literature Review.

SARS-CoV-2 has created universal disarray since its outbreak in 2019. Emergent measures were taken worldwide to mitigate the morbid outcomes of the pandemic. Multiple organ systems have been shown to be negatively impacted secondary to the heightened inflammatory response to the novel virus. In this report, we focus on the respiratory system. The novel virus impact on the respiratory system has been well documented, leading to acute respiratory distress syndrome. Here, we present a case of a patient with no risk factors for pneumothorax (smoking, underlying lung disease, prior history of pneumothorax, age, family history) who was found to be SARS-CoV-2 positive and developed a significant pneumothorax requiring transfer to the intensive care unit.

Renal capsule for augmentation cystoplasty in canine model: a favorable biomaterial?

PURPOSE: To evaluate effectiveness of canine renal capsule for augmentation cystoplasty. MATERIALS AND METHODS: Ten adult dogs participated in this study. After induction of anesthesia each animal underwent bed side urodynamic study, bladder capacity and bladder pressure was recorded. Then via mid line incision abdominal cavity was entered, right kidney was identified and its capsule was dissected. Bladder augmentation was done by anastomosing the renal capsule to the bladder. After 6 months bed side urodynamic study was performed again and changes in bladder volume and pressure were recorded. Then the animals were sacrificed and the augmented bladders were sent for histopathology evaluation. RESULTS: Mean maximum anatomic bladder capacity before cystoplasty was 334.00±11.40cc which increased to 488.00±14.83cc post-operatively (p=0.039). Mean anatomic bladder pressure before cystoplasty was 19.00±1.58cmH2O which decreased to 12.60±1.14cmH2O post-operatively (p=0.039). Histopathology evaluation revealed epithelialization of the renal capsule with urothelium without evidence of fibrosis, collagen deposits or contracture. CONCLUSIONS: Our data shows that renal capsule is a favorable biomaterial for bladder augmentation in a canine model.

Renal capsule for augmentation cystoplasty in canine model: a favorable biomaterial?

ABSTRACT Purpose: To evaluate effectiveness of canine renal capsule for augmentation cystoplasty. Materials and Methods: Ten adult dogs participated in this study. After induction of anesthesia each animal underwent bed side urodynamic study, bladder capacity and bladder pressure was recorded. Then via mid line incision abdominal cavity was entered, right kidney was identified and its capsule was dissected. Bladder augmentation was done by anastomosing the renal capsule to the bladder. After 6 months bed side urodynamic study was performed again and changes in bladder volume and pressure were recorded. Then the animals were sacrificed and the augmented bladders were sent for histopathology evaluation. Results: Mean maximum anatomic bladder capacity before cystoplasty was 334.00±11.40cc which increased to 488.00±14.83cc post-operatively (p=0.039). Mean anatomic bladder pressure before cystoplasty was 19.00±1.58cmH2O which decreased to 12.60±1.14cmH2O post-operatively (p=0.039). Histopathology evaluation revealed epithelialization of the renal capsule with urothelium without evidence of fibrosis, collagen deposits or contracture. Conclusions: Our data shows that renal capsule is a favorable biomaterial for bladder augmentation in a canine model.