Difference between revisions of "Sinus histiocytosis"

Jump to navigation Jump to search
(finish split-out)
Line 1: Line 1:
'''Sinus histiocytosis'''
'''Sinus histiocytosis''', abbreviated '''SH''', is a common finding in [[lymph nodes]]. 
 
It should '''not''' be confused with [[Rosai-Dorfman disease]] (also known as ''sinus histiocytosis and massive lymphadenopathy'').
 
==General==
*Benign.
*Non-specific finding.
 
==Microscopic==
Features:<ref name=Ref_ILNP179>{{Ref_ILNP|179}}</ref>
*Sinuses distended with histiocytes - '''key feature'''.
*[[Plasma cell]]s increased.
 
DDx:
*[[Rosai-Dorfman disease]] - histiocyte nuclei large (~2-3x lymphocyte) and round with a prominent nucleoli.
*[[Dermatopathic lymphadenopathy]] - histiocytes have (melanin) pigment.
 
===Images===
<gallery>
Image: Sinus histiocytosis -- intermed mag.jpg | SH - intermed. mag.
Image: Sinus histiocytosis -- high mag.jpg | SH - high mag.
Image: Sinus histiocytosis - deep -- high mag.jpg | SH - high mag.
</gallery>
 
==Sign out==
*The finding is often ignored; may be signed out as ''morphologically benign lymph nodes''.


==See also==
==See also==