Primary Subcapsular Reflux as an Etiology of Subcapsular Renal Abscess

Herein, we report two rare cases of renal infection. The first case was renal subcapsular urine reflux in a 8-month-old girl with recurrent urinary tract infection and the second was subcapsular abscess in a 14-year-old girl with diabetes, who was successfully treated with percutaneous drainage. It has been suggested that renal subcapsular abscesses could be caused by the direct reflux of urine into the subcapsular space, rather than spread of infection from an existing parenchymal lesion, and that complete recovery can be achieved if percutaneous drainage is performed in a timely manner. We propose primary subcapsular reflux, in which urine directly refluxes upwards into the subcapsular space of the kidney, as one of the mechanisms for development of renal subcapsular abscesses.

Pneumonia-related pneumatoceles in infants: CT assessment and image-guided treatment

Lung pneumatoceles represent a potential life-threatening complication of pneumonia in infants, especially when they do not spontaneously reabsorb. In this category of patients, scientific literature lacks and no consensus guidelines for management have been proposed. Imaging plays a key role in the diagnosis, characterization, and follow-up of pneumatoceles. Image-guided percutaneous drainage can be considered a safe and effective treatment in children, although it is not widely recognized in newborns and infants. The aim of this case series review is to describe the main CT features of complicated or persistent pneumatoceles in infants and to highlight the potential role of image-guided percutaneous drainage as an effective approach for their treatment. Successful management of four infants affected by pneumonia-related pneumatoceles with percutaneous drainage is presented.

Nonoperative Management for Peri-Appendiceal Abscesses after Percutaneous Drainage Without Interval Appendectomy

Background: Initial non-operative management (NOM) with percutaneous drainage for peri-appendiceal abscesses has been proven to be safe and effective. However, the appropriateness of interval appendectomy after NOM is still a matter of debate. The aim of this study was to investigate the feasibility of NOM without performing interval appendectomy.Methods: A retrospective review of medical records was performed for patients who were admitted with peri-appendiceal abscesses between January 2009 and December 2019. After percutaneous drainage for the abscesses, whether to undergo interval appendectomy was decided by the patients. Their clinical courses were reviewed thoroughly through their medical records. Telephone contact with these patients was made when necessary. Results: Twenty-seven patients were enrolled, with a mean age of 63.1 years (± 11.9 years). The median follow-up period was 25.7 months. The most common co-morbidities were cardiovascular disorders (eight patients) and underlying malignancies (eight patients). The mean size of the abscesses was 5.4 x 4.1 ㎝. Three patients consequently received surgery for the recurrence of appendicitis or peri-appendiceal abscesses. One patient received a right hemicolectomy, and another two received open appendectomies. Four patients (14.8%) died within the follow-up period due to underlying diseases.Conclusion: Initial NOM without interval appendectomy was a safe option in selected patients with peri-appendiceal abscess.

Abstract 17237: A Pair Of Diaphragm-Crossed Organs: A Pancreatico-Pericardial Fistula

Introduction: Pseudocysts are a known complication of chronic pancreatitis, occurring in 30-40% of patients. They form when disruption of the pancreatic duct system creates fluid-filled pockets with high concentrations of digestive enzymes. Leakage of these enzymes can create pancreatic fistulas. Here, we present a case of an unusual fistula that occurred in an immunocompromised individual. Case Description: A 34-year-old man with a history of Acquired Immunodeficiency Syndrome, alcohol use disorder, and chronic pancreatitis who had recently recovered from acute pancreatitis complicated by pericardial effusion was readmitted with worsening pleuritic chest pain and shortness of breath. He was hemodynamically stable with a normal cardiopulmonary exam without jugular venous distention or pulsus paradoxus. Labs were at his baseline other than an elevated d-dimer level. Computed tomography scan revealed a large, loculated pericardial effusion with a fistula extending through the diaphragm to a large peripancreatic pseudocyst. Gastroenterology performed pancreatic ductal stenting via endoscopic retrograde cholangiopancreatography and Interventional Radiology placed a percutaneous drainage catheter to facilitate resolution of the pseudocyst. Discussion: A pancreatico-pericardial fistula is a very rare complication of chronic pancreatitis. A 2016 review detailed only fifteen cases over a 40-year span with surgical management providing the best outcomes. Given this patient’s immunocompromise and malnutrition surgery was not offered, but endoscopic stenting and percutaneous drainage allowed for successful resolution of his fistula.

Spontaneous rupture of liver abscess with biliary communication presenting as a lumbar mass

Pyogenic liver abscess was first reported in the writings of Hippocrates, which was based on the type of fluid recovered from the abscess related to a high mortality rate ranging between 15% and 19% at that time. However in 1938, Ochsner and De Bakey described the recommended surgical treatment as the primary treatment modality. Surgery remained the therapy of choice until the mid-1980s, when percutaneous drainage was shown to be a safer alternative in many cases. Spontaneous rupture of liver abscess may occur free in the peritoneal cavity or in neighbouring organs, an event which is generally considered as a surgical emergency, while localized rupture can be managed with drainage, either percutaneous or surgical/minimal invasive techniques and addition of appropriate antibiotic treatment. In cases where there is uneventful rupture of abscess and localized to the neighbouring organs and tissues can be successfully treated by a combination of broad-spectrum antibiotics and percutaneous drainage and endoscopic management.

The Management of Acute Colonic Diverticulitis in the COVID-19 Era: A Scoping Review

Background and Objective: During the COVID-19 pandemic, health systems worldwide made major changes to their organization, delaying diagnosis and treatment across a broad spectrum of pathologies. Concerning surgery, there was an evident reduction in all elective and emergency activities, particularly for benign pathologies such as acute diverticulitis, for which we have identified a reduction in emergency room presentation with mild forms and an increase with more severe forms. The aim of our review was to discover new data on emergency presentation for patients with acute diverticulitis during the Covid-19 pandemic and their current management, and to define a better methodology for surgical decision-making. Method: We conducted a scoping review on 25 trials, analyzing five points: reduced hospital access for patients with diverticulitis, the preferred treatment for non-complicated diverticulitis, the role of CT scanning in primary evaluation and percutaneous drainage as a treatment, and changes in surgical decision-making and preferred treatment strategies for complicated diverticulitis. Results: We found a decrease in emergency access for patients with diverticular disease, with an increased incidence of complicated diverticulitis. The preferred treatment was conservative for non-complicated forms and in patients with COVID-related pneumonia, percutaneous drainage for abscess, or with surgery delayed or reserved for diffuse peritonitis or sepsis. Conclusion: During the COVID-19 pandemic we observed an increased number of complicated forms of diverticulitis, while the total number decreased, possibly due to delay in hospital or ambulatory presentation because of the fear of contracting COVID-19. We observed a greater tendency to treat these more severe forms by conservative means or drainage. When surgery was necessary, there was a preference for an open approach or a delayed operation.