Imaging
Those who care for patients with pulmonary, critical care or sleep disorders rely heavily on chest radiology and pathology to determine diagnoses. The Southwest Journal of Pulmonary, Critical Care & Sleep publishes case-based articles with characteristic chest imaging and related pathology.
The editor of this section will oversee and coordinate the publication of a core of the most important chest imaging topics. In doing so, they encourage the submission of unsolicited manuscripts. It cannot be overemphasized that both radiologic and pathologic images must be of excellent quality. As a rule, 600 DPI is sufficient for radiographic and pathologic images. Taking pictures of plain chest radiographs and CT scans with a digital camera is strongly discouraged. The figures should be cited in the text and numbered consecutively. The stain used for pathology specimens and magnification should be mentioned in the figure legend. Those who care for patients with pulmonary, critical care or sleep disorders rely heavily on chest radiology and pathology to determine diagnoses. The Southwest Journal of Pulmonary, Critical Care & Sleep publishes case-based articles with characteristic chest imaging and related pathology. The editor of this section will oversee and coordinate the publication of a core of the most important chest imaging topics. In doing so, they encourage the submission of unsolicited manuscripts. It cannot be overemphasized that both radiologic and pathologic images must be of excellent quality. As a rule, 600 DPI is sufficient for radiographic and pathologic images. Taking pictures of plain chest radiographs and CT scans with a digital camera is strongly discouraged. The figures should be cited in the text and numbered consecutively. The stain used for pathology specimens and magnification should be mentioned in the figure legend.
Medical Image of the Month: Perforated Gangrenous Cholecystitis
Figure 1. A sagittal CT of the abdomen and pelvis without intravenous contrast demonstrates a low-density stone in the neck of the gallbladder (red arrow) along with large amount of complex fluid adjacent to the gallbladder (outlined in green) consistent with a large pericholecystic abscess. A large amount of fat-stranding in the adjacent mesenteric fat is also noted (blue arrow).
Clinical Scenario: A 47-year-old lady with a past medical history of hypertension, DVT on Xarelto, and methamphetamine use presented with a 3-day history of progressive right upper quadrant pain. Physical examination demonstrated marked right upper quadrant tenderness with palpation and significant rebound tenderness. A CT of the abdomen and pelvis without intravenous contrast demonstrated findings consistent with acute calculus cholecystitis with evidence of perforation and a pericholecystic abscess. The patient was taken emergently to the operating room where she underwent an open cholecystectomy which demonstrated perforated gangrenous cholecystitis with a large abscess in the gallbladder fossa. She was admitted to the ICU post-operatively due septic shock and did well with fluid resuscitation and antibiotic administration.
Discussion: Acute cholecystitis is the most common acute complication of cholelithiasis and accounts for 3-9% of hospital admissions for acute abdominal pain. Eight to 95% of cases of acute cholecystitis are the result of a stone obstructing the cystic duct or gallbladder neck. Acute acalculous cholecystitis accounts for the remaining 5-20% of cases of cholecystitis. Ultrasound is the preferred initial examination for patients suspected of having cholecystitis. Gangrenous cholecystitis is the most common complication of acute cholecystitis and often necessitates emergent surgery. Perforated cholecystitis is most commonly seen in association with gangrenous cholecystitis. Perforation most commonly occurs at the gallbladder fundus where blood flow to the gallbladder is most distal.
Lauren Blackley, AG-ACNP-S1
Madhav Chopra MD2
Tammer El-Aini MD2
1Grand Canyon University- College of Nursing
2Banner University Medical Center – Main Campus, Department of Pulmonary and Critical Care
Reference
- Ratanaprasatporn L, Uyeda JW, Wortman JR, Richardson I, Sodickson AD. Multimodality Imaging, including Dual-Energy CT, in the Evaluation of Gallbladder Disease. Radiographics. 2018 Jan-Feb;38(1):75-89. [CrossRef] [PubMed]
Cite as: Blackley L, Chopra M, El-Aini T. Medical Image of the Month: Perforated Gangrenous Cholecystitis. Southwest Journal of Pulmonary and Critical Care. 2021;22(5):100-1. doi: https://doi.org/10.13175/swjpcc010-21 PDF
Medical Image of the Week: Ascending Cholangitis from Biliary Obstruction
Figure 1 – Sagittal view of the gallbladder on ultrasound showing gallstone (red arrow).
Figure 2 – Cholangiogram showing multiple filling defects in the gallbladder (red arrowheads) and diffuse dilatation of the common bile duct to 16mm with no contrast flow into the duodenum (arrow), suggestive of distal obstruction.
A 79 year old man with a history of quadriplegia presented to an outside hospital in septic shock. He was found to have an elevated total bilirubin of 10 mg/dL, direct bilirubin of 7 mg/dL, alkaline phosphatase of 405 U/L, and lipase of 370 U/L. Imaging showed cholelithiasis with likely intra- and extrahepatic biliary duct dilatation. The patient underwent placement of a biliary drain with clinical improvement. Additional imaging was requested prior to endoscopic retrograde cholangiopancreatography (ERCP), but magnetic resonance cholangiopancreatography (MRCP) was unavailable due to metallic implants. Interventional radiology performed a cholangiogram using the biliary drain which confirmed biliary obstruction. ERCP was then performed, with significant biliary sludge found and two stents placed.
Candy Wong, MD1, Preethi William, MD2 and Gordon Carr, MD1
1Division of Pulmonary and Critical Care Medicine
2Department of Medicine
University of Arizona
Tucson, Arizona
Reference as: Wong C, William P, Carr G. Medical image of the week: ascending cholangitis from biliary obstruction. Southwest J Pulm Crit Care. 2013;6(4):187-8. PDF