neoplasia | Pathology Student

How can you tell if carcinoma is invasive on a Pap smear?

Q. How is it that a cytopathologist can diagnose invasive squamous cell carcinoma on a Pap smear? (more…)

DCIS vs. LCIS

Q. I have a question regarding ductal carcinoma in situ (DCIS) and lobular carcinoma in situ (LCIS). (more…)

Testicular tumors in 500 words or less

Testicular cancer is the number one cancer in men between the ages of 20 and 34. (more…)

What’s the difference between ischemic and hemorrhagic brain infarcts?

Q. I’m studying for boards and came across a point of confusion. (more…)

The 10 most-read posts of 2011

There are some Pathology Student posts that readers seem to turn to over and over.

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Where do you see Auer rods?

Q.In which type of AML do you see the most Auer rods?

A. Auer rods are elongated structures seen in malignant cells of the neutrophil lineage. (more…)

Small-cell vs. squamous-cell lung cancer

I received an email yesterday that had questions about a post from a couple years ago – and rather than bury the answers way back in 2009, I thought I’d make a new post. (more…)

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…)

Brain metastases: sometimes the first sign of a tumor

Metastatic lesions are pretty common in the brain. If you look at all brain tumors in hospitalized patients, about 25% – 50% are metastatic tumors. (more…)