The patient has a fever/infection. The picutre shows normal (1 immature) granulocytes (neutrophils). The immature might be part of the left-shift occuring in this patient. Therefore, this is simply a reactive immune process.
What's the difference between reactive granulocytosis vs lymphocytosis?
Granulocytes are neutrophils, eosinophils, basophils.
Lymphocytes are B, T, NK cells.
We can rule out A B and C because its cancer and pt will present w/ weight loss. Here the pt likely has pneumonia w/ elevated leukocyte count indicating infection. On PBS, cells look like neutrophils (seen in acute inflammatory states) which are granulocytes therefore it is reactive granulocytosis.
https://webpath.med.utah.edu/HEMEHTML/HEME069.html
There's a band cell in the middle=> left shift reactive granulocytosis
submitted by โhungrybox(1277)
some wrong answers:
*makes sense b/c myeloblasts are precursors to granulocytes, which use MPO to fight off infections