Why is endodermal sinus tumor named that way?

Q: I didn't get the concept of endodermal sinus tumor. Why is it called so?  Does it really come from the yolk sac? What's with the 'sinus' ? Why would it resemble glomeruli? I looked on the internet and ended up getting more confused. I'd be so grateful if you could...

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Can you solve this case?

A 69-year-old man is discharged home from the hospital after a 10 day admission during which he underwent surgery for a benign tumor and received prophylactic antibiotics. Approximately 24 hours after discharge from the hospital, he experiences one day of diffuse...

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Monoblast vs. promonocyte

Q. How do you tell the difference between a monoblast and a promonocyte? A. Good question! There are a few distinctive features that help you differentiate between these two stages of monocyte development. Monoblasts are large cells, with round to oval nuclei and...

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Can you solve this case?

A 40-year-old woman with a history of obesity, smoking and oral contraceptive use sustains minor knee injury and avoids her regular walking activity. Three days later, she complains of lightheadedness and progressive respiratory distress over a twelve hour period, and...

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More real student questions on heme

I get so many really good questions from my students. I post them for our class - and from time to time I post them here, too, so everyone can benefit.There are some on hematopathology in general, and on myeloma, myeloproliferative disorders, and anemia. Today's...

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Intracorpuscular vs. extracorpuscular anemias

  Q. I am wondering if you could differentiate between what extracorpuscular and intracorpuscular anemia are in terms of where they occur and why there is a difference in the two types. A. Sure! Intracorpuscular just means within the red cell itself - so an...

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Need More Pathology Help?

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