Diagnostic Approach to Coffee Ground Emesis with Mid-to-Distal Esophageal Wall Thickening

Primary Differential Diagnoses

The American College of Radiology recommends that gastroesophageal reflux disease (GERD) with complicated esophagitis be considered a common cause of distal esophageal wall thickening, with 88% specificity on CT, particularly when mucosal hyperenhancement, submucosal edema, and wall thickening are present 1, 2.
The presence of air in the middle and lower esophagus on CT supports GERD as a contributing factor, according to the American College of Radiology 1.
Gastric or duodenal ulcer disease can present with coffee ground emesis and may have associated esophageal inflammation, as noted by the American College of Radiology 1, 4.
CT findings of gastric/duodenal wall thickening, mucosal hyperenhancement, focal outpouching from ulcerations, or active bleeding with hyperdense blood products are indicative of peptic ulcer disease, according to the American College of Radiology 1, 5.
Eosinophilic esophagitis (EE) can cause esophageal wall thickening involving the mucosa, submucosa, and muscularis propria layers, and requires multiple esophageal biopsies showing ≥15 eosinophils per high-power field for diagnosis, as recommended by Gastroenterology 3, 6.
Corrosive esophagitis from caustic ingestion causes wall thickening with specific CT patterns, including internal mucosal enhancement with hypodense thickened wall ("target sign") and mediastinal fat stranding, as described by the World Journal of Emergency Surgery 8, 9, 10.

The American College of Radiology advises checking for perforation signs immediately, including extraluminal gas, fluid or fat stranding around the esophagus, ascites, and focal wall defects on the existing CT, as perforation carries up to 30% mortality if treatment is delayed 1, 5, 4.
Urgent upper endoscopy with biopsy is the definitive next step to distinguish malignancy from benign causes, and biopsies from multiple esophageal locations (proximal, mid, distal) should be obtained even if mucosa appears normal, as sensitivity increases from 55% with one biopsy to 100% with five biopsies, according to Gastroenterology 1, 2, 11, 5.
The American College of Gastroenterology recommends obtaining biopsies from stomach and duodenum to evaluate for concurrent gastritis, PUD, or eosinophilic gastroenteritis 3, 5.

Never assume benign peptic ulcer disease or esophagitis without histologic confirmation when wall thickening and bleeding are present, as malignancy can present identically, as cautioned by the American College of Radiology 5, 4.
Do not delay endoscopy in patients with coffee ground emesis and esophageal wall thickening, as this combination warrants aggressive investigation for malignancy, according to the American College of Radiology 5.
Do not overlook perforation signs on the existing CT scan, including extraluminal gas, wall defects, and fat stranding, as these require immediate surgical intervention, as emphasized by the American College of Radiology 1, 5, 4.