Difference between revisions of "Sinus histiocytosis"

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DDx:
DDx:
*[[Rosai-Dorfman disease]] - histiocyte nuclei large (~2-3x lymphocyte) and round with a prominent nucleolus.
*[[Rosai-Dorfman disease]] - histiocytes have a large round nucleus (~2-3x the size of a lymphocyte) with a prominent nucleolus.
*[[Dermatopathic lymphadenopathy]] - histiocytes have (melanin) pigment.
*[[Dermatopathic lymphadenopathy]] - histiocytes have (melanin) pigment.
*[[Lymph node metastasis]] - usually not difficult if one compares with the germinal center macrophages and the primary tumour.
*[[Lymph node metastasis]] - usually not difficult if one compares with the germinal center macrophages and the primary tumour.