Gastrointestinal Pathology | Pathology Student

High-yield histology: the GI tract

When you’re studying pathology, it’s a good idea to review normal stuff quickly before you get into all the diseases. (more…)

A 52 year-old male with HIV and diarrhea

A 52 year-old male with HIV presents with profuse, watery diarrhea of 5 days’ duration. A biopsy of the small intestine is shown here. (more…)

A 52 year-old male with bloody diarrhea

A 52 year-old male presents with abdominal pain and bloody diarrhea which had a gradual onset over the last 3 weeks. (more…)

What causes fever of unknown origin?

That might sound like “Who’s buried in Grant’s tomb?” or “When was the war of 1812?” but it’s actually a really good question. (more…)

A 45 year-old male with emphysema and hepatitis

A 45 year-old male presents with pulmonary emphysema and repeated bouts of hepatitis. On liver biopsy, there are numerous eosinophilic, globular inclusions, such as the one at the center of the field.
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The two common types of esophageal carcinoma

Most esophageal carcinomas fall into one of two kinds: adenocarcinoma or squamous cell carcinoma. (more…)

Dysplasia in Barrett Esophagus

Q. Do you always see dysplasia in Barrett esophagus?

A. Good question! No, you don’t always see dysplasia. You worry about it, but most of the time you don’t see it. (more…)

Even more on H. pylori

Q. I have a question about H. pylori. I understand that it’s mainly the host’s inflammatory response to the H. pylori‘s presence at the epithelial cell surface that causes the ulcers. (more…)

Intestinal parasites

Intestinal parasites are a big cause of morbidity and mortality worldwide. They don’t just occur in underprivileged parts of the world though – there are several that are pretty common here in the US. (more…)

H. pylori: How does it do it all?

H. pylori is one crazy bug.

It lives in one of the most hostile environments in the body: the highly acidic stomach. In fact, it not only lives there, it seems to thrive! (more…)