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| ==Fabry disease== | | ==Fabry disease== |
| ===General===
| | {{Main|Fabry disease}} |
| *Rare X-linked genetic disease.
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| **Caused by defect in ''alpha-galactosidase A gene'' (''GLA gene'').<ref name=omim301500>{{OMIM|301500}}</ref>
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| **Women partially affected
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| *[[Lysosomal storage disorder]] - 2nd in prevalence only to [[Gaucher disease]].
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| *Multisystem disease affecting small vessels and [[kidney]].
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| ====Presentation====
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| *Women: usually proteinuria.
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| *Men: [[angiokeratoma]]s, proteinuria.
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| ====Tx====
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| *Symptomatic treatment.
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| *Enzyme replacement - ''agalsidase alpha'' (Replagal) or ''agalsidase beta'' (Fabrazyme).
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| ===Microscopic===
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| Features:<ref name=pmid16799480>{{cite journal |author=Fischer EG, Moore MJ, Lager DJ |title=Fabry disease: a morphologic study of 11 cases |journal=Mod. Pathol. |volume=19 |issue=10 |pages=1295-301 |year=2006 |month=October |pmid=16799480 |doi=10.1038/modpathol.3800634 |url=http://www.nature.com/modpathol/journal/v19/n10/abs/3800634a.html}}</ref>
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| *Foamy podocyte inclusions, best visualized with ''[[toluidine blue]]''.
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| *Mild mesangial hypercellularity.
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| Images:
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| *[http://path.upmc.edu/cases/case137/micro.html Fabry disease (upmc.edu)].
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| *[http://path.upmc.edu/cases/case610.html Fabry disease - several images (upmc.edu)].
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| ===EM===
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| Features:<ref name=pmid16799480/>
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| *Myelin-like inclusions.
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| **Concentric bodies with an onion-skin-like appearance.
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| *Zebra bodies.
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| **Ovoid inclusions with striped pattern.
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| Note:
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| *Myelin-like inclusion are not [http://en.wikipedia.org/wiki/Pathognomonic pathognomonic] for Fabry disease; they may result from drug use:<ref name=pmid16799480/>
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| **Amiodarone.
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| **Aminoglycosides.
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| **Chloroquine.
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| ==Myeloma== | | ==Myeloma== |