Mesenteric Lymphadenopathy and Abdominal Pain

Clinical Presentation

Mesenteric ischemia presents with severe abdominal pain that is disproportionate to physical examination findings 1
Approximately one-third of patients with mesenteric ischemia present with the triad of abdominal pain, fever, and hemocult-positive stools 1
Mesenteric arterial thrombosis is associated with a history of chronic postprandial abdominal pain and progressive weight loss over time 1
Mesenteric venous thrombosis presents with a mixture of nausea, vomiting, diarrhea, and abdominal cramping 1

CT angiography (CTA) of the abdomen and pelvis is the preferred diagnostic imaging modality for evaluating suspected mesenteric ischemia 1, 2
Laboratory tests should include complete blood count, as leukocytosis is present in more than 90% of patients with mesenteric ischemia 1
Elevated serum lactate levels > 2 mmol/l are associated with irreversible intestinal ischemia 1

For mesenteric ischemia, early diagnosis and intervention are crucial as mortality rates range between 30% to 90% in acute settings 1, 2
In cases of mesenteric venous thrombosis, systemic anticoagulation is the primary therapy 4
The American College of Radiology recommends systemic anticoagulation as the primary therapy for mesenteric venous thrombosis 4

The incidence of mesenteric ischemia increases exponentially with age, with an 80-year-old having approximately tenfold the risk of a 60-year-old 1
In patients aged 75 years or older, acute mesenteric ischemia is a more prevalent cause of acute abdomen than appendicitis 1