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| *[[AKA]] ''prostatic atrophy''. | | *[[AKA]] ''prostatic atrophy''. |
| *[[AKA]] ''atrophy of the prostate gland''. | | *[[AKA]] ''atrophy of the prostate gland''. |
| ===General===
| | {{Main|Atrophy of the prostate gland}} |
| *Small glands (may mimic Gleason score 3 pattern).
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| ===Microscopic===
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| Features:
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| *Glands often have a jagged edges/prows (in cancer the glands tend to have round edges) - '''key feature'''.
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| **Prow = forward most part of a ship's bow that cuts through the water.<ref>[http://en.wikipedia.org/wiki/Prow http://en.wikipedia.org/wiki/Prow]</ref>
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| ***You may have come across ''prow'' in the context of [[breast cancer]], i.e. ''tubular carcinoma''.
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| *Gland density is usually lower than in prostate carcinoma, i.e. glands are not back-to-back - '''key feature'''.
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| *Atrophic glands are often hyperchromatic.<ref>SN. June 3, 2009.</ref>
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| *Scant cytoplasm - usually.
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| Negatives:
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| *Nuclei like normal, i.e. nucleoli uncommon.
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| *Should have two cell layers, i.e. epithelial and myoepithelial (may be difficult to see).
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| Notes:
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| *Atrophic glands may be scattered with non-atrophic ones.
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| *IHC may be misleading - basal cell loss.
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| DDx:
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| *[[Atrophic prostate carcinoma]].
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| ====Atrophy versus cancer====
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| {| class="wikitable sortable"
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| ! Histologic feature
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| ! Atrophy
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| ! Cancer
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| |-
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| |Glandular architecture/<br>arrangement
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| |angulated glands, may <br>look like they originate <br>from one large duct
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| |round glands, <br>often back-to-back
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| |-
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| |Nuclear <br>hyperchromasia
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| |marked
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| |moderate
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| |-
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| |Cytoplasm
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| |scant/minimal
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| |moderate, may <br>be amphophilic
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| |-
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| |Basal cells
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| |may be visible
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| |absent
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| |-
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| |Nucleoli
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| |absent
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| |present
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| |-
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| |Secretions in <br>glands
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| |no
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| |yes - eosinophilic <br>or blue
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| |}
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| ===Sign out===
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| Generally, this finding is ''not'' reported; it is considered a normal finding.
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| ==Prostatic infarct== | | ==Prostatic infarct== |