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Difference between revisions of "Parathyroid glands"
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→Normal parathyroid glands
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***Adipocytes - increased with age, may be used to help differentiate from thyroid - '''key feature'''. | ***Adipocytes - increased with age, may be used to help differentiate from thyroid - '''key feature'''. | ||
Parathyroid cell types | Images: | ||
*[http://library.med.utah.edu/WebPath/ENDOHTML/ENDO031.html Parathyroid - med.utah.edu]. | |||
*[http://pathology.mc.duke.edu/research/PTH225.html Histology - several images. - pathology.mc.duke.edu]. | |||
====Parathyroid cell types==== | |||
{| class="wikitable" | {| class="wikitable" | ||
| '''Name''' | | '''Name''' | ||
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*Chief cells tend to stain more intensely than oxyphil cells. | *Chief cells tend to stain more intensely than oxyphil cells. | ||
Thyroid | ====Thyroid versus parathyroid==== | ||
*Parathyroid cytoplasm: | *Parathyroid cytoplasm: | ||
**Hyperchromatic. | **Hyperchromatic. | ||
See: [http://instruction.cvhs.okstate.edu/Histology/HistologyReference/imagesco/parathyroid2F.jpg Parathyroid image (okstate.edu)]. | |||
*Parathyroid: | |||
====Parathyroid versus lymphoid tissue==== *Parathyroid: | |||
**No germinal centres. | **No germinal centres. | ||
**Gland-like/follicular-like arrangement -- much smaller than normal follicles of | **Gland-like/follicular-like arrangement -- much smaller than normal follicles of | ||
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***Stippled chromatin (unlike lymphocytes). | ***Stippled chromatin (unlike lymphocytes). | ||
See: [http://www.deltagen.com/target/histologyatlas/atlas_files/endocrine/parathyroid_and_thyroid_glands_20x.jpg Parathyroid image (deltagen.com)]. | |||
=Specific entities= | =Specific entities= | ||