Difference between revisions of "Lymph node pathology"

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==Sinus histiocytosis==
==Sinus histiocytosis==
===General===
{{Main|Sinus histiocytosis}}
*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.
 
===Sign out===
*The finding is often ignored; may be signed out as ''morphologically benign lymph nodes''.


==Kikuchi disease==
==Kikuchi disease==