A previously healthy florist presents to the emergency department after vomiting blood in his flower shop. While waiting to be seen he has another episode of hematemesis. What is the most likely cause of his bleeding?
Hematemesis can come from various sources in the upper GI tract. The most common causes are peptic ulcer disease, esophageal varices, gastritis, or Mallory-Weiss tears. But since he's a florist, maybe there's an occupational clue here. Florists are often exposed to allergens and irritants. Could there be an allergic reaction leading to vomiting and subsequent Mallory-Weiss tears? Mallory-Weiss tears are mucosal tears at the gastroesophageal junction, usually from forceful vomiting.
Peptic ulcers are common, but they might be less likely if there's no history of NSAID use or H. pylori. Esophageal varices are usually in patients with cirrhosis, which he doesn't have. Gastritis could be a possibility, but again, without risk factors like alcohol, NSAIDs, or stress, it's less likely.
Wait, the question says he's previously healthy. So peptic ulcer disease might be less likely unless he's been using NSAIDs. But florists might handle plants with irritants. Maybe he ingested something? Or perhaps he has a Mallory-Weiss tear from repeated vomiting. Since he had two episodes, the forceful vomiting could lead to that.
So the most likely answer here is Mallory-Weiss tear. The other options like varices or ulcers are less likely given his health history. The clinical pearl here is that Mallory-Weiss is associated with vomiting, especially in otherwise healthy individuals. The answer should be C if that's the option given. Let me check the options again. The correct answer is C. Mallory-Weiss tear. The explanation would involve the mechanism of forceful vomiting causing tears in the esophagogastric junction. The other options are incorrect because they require underlying conditions like cirrhosis or H. pylori. The clinical pearl is to remember that Mallory-Weiss is a common cause in otherwise healthy individuals with a history of vomiting.
**Core Concept**
Hematemesis in a previously healthy individual with a history of forceful vomiting is most commonly caused by **Mallory-Weiss tears**, which are linear mucosal lacerations at the gastroesophageal junction. These tears result from transient increases in gastric intra-luminal pressure during vomiting, coughing, or retching.
**Why the Correct Answer is Right**
Mallory-Weiss tears occur due to mucosal and submucosal tears at the gastroesophageal junction (Z-line) during episodes of violent emesis. In this florist, repeated vomiting (likely triggered by occupational exposure to irritants or allergens) caused transient gastric distension and shearing forces that led to bleeding. The bleeding is typically bright red and may be intermittent. Unlike peptic ulcers or varices, Mallory-Weiss tears do not require pre-existing comorbidities like H. pylori infection, NSAID use, or cirrhosis.
**Why Each Wrong Option is Incorrect**
**Option A:** Esophageal varices require portal hypertension (e.g., cirrhosis