Mallory-Weiss Syndrome
The most likely diagnosis is C) Mallory-Weiss syndrome – this classic presentation of repeated vomiting from alcohol consumption followed by hematemesis in a young patient is pathognomonic for Mallory-Weiss tears at the gastroesophageal junction.
Clinical Reasoning
This 23-year-old man presents with the textbook triad that defines Mallory-Weiss syndrome: vomiting, hematemesis, and alcohol consumption 1. The critical diagnostic feature is the temporal sequence – non-bloody vomiting episodes that precede the hematemesis. This pattern reflects the mechanism: initial retching episodes create the mucosal tear, then subsequent vomiting produces visible bleeding 2.
Why Mallory-Weiss Syndrome is Most Likely:
- Age and demographics: Young patients without chronic liver disease rarely have varices 3
- Classic presentation: The sequence of forceful vomiting followed by hematemesis is highly specific 4, 2
- Epidemiology: Mallory-Weiss tears account for approximately 15% of upper GI bleeding cases 3, making it common enough to be a primary consideration
- Alcohol as trigger: Alcohol consumption is strongly associated with this syndrome, present in the majority of cases 1
Why Other Diagnoses are Less Likely:
A) Esophageal variceal rupture: Requires underlying portal hypertension from chronic liver disease. A 23-year-old would need advanced cirrhosis, which is uncommon at this age and would present with other stigmata of liver disease 3.
B) Gastric ulcer: Typically presents with epigastric pain, often without preceding vomiting. While alcohol and NSAIDs are risk factors, the specific sequence of events here points away from ulcer disease 5.
D) Boerhaave syndrome: This is full-thickness esophageal perforation, a surgical emergency presenting with severe chest pain, subcutaneous emphysema, and mediastinitis – not just hematemesis 6. The patient would appear critically ill.
E) Dieulafoy lesion: A rare vascular malformation causing massive bleeding without preceding symptoms. It accounts for only ~1% of upper GI bleeding and lacks the characteristic vomiting prodrome 3.
Clinical Management Implications
Mallory-Weiss tears have an excellent prognosis – approximately 80-90% stop bleeding spontaneously 3, 2. The guidelines specifically note that these lesions "almost always stop bleeding spontaneously" 3. However, immediate endoscopy is warranted to:
- Confirm the diagnosis (longitudinal mucosal tear at gastroesophageal junction)
- Assess for active bleeding or stigmata of recent hemorrhage
- Provide endoscopic therapy if needed (injection, thermal methods, or hemoclips) 3, 2
Risk Stratification:
Using the Rockall scoring system 3, this patient would score low:
- Age <60 years (0 points)
- Likely hemodynamically stable given the clinical scenario
- Mallory-Weiss tear diagnosis carries the lowest risk score (0 points)
- Expected mortality: <1% with appropriate management
Key Clinical Pitfalls:
- Don't assume all post-vomiting bleeding is benign: While Mallory-Weiss is most likely, endoscopy may reveal coexisting lesions in up to 84% of cases 1, including ulcers or erosions that could be the actual bleeding source
- Hiatal hernia association: The presence of hiatal hernia increases risk of Mallory-Weiss tears due to pressure gradients at the gastroesophageal junction 7, 1
- Monitor for rebleeding: Though rare with Mallory-Weiss syndrome, any patient with hematemesis requires observation and serial hemoglobin checks 3
Answer: C) Mallory-Weiss syndrome