Diseases Of Lymphatics Flashcards
what is lymphadenopathy ??
when 2/more groups of lymph node are enlarged
causes of lymphadenopathy ?
lymphoma
leukaemia
SLE
RA
CMV HIV
Filariaisis
toxoplasmosis
syphilis
TB brucellosis cat scracth D
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Lymphoma defination ?
neoplastic proliferation of cells native to the lymph nodes
WHO classification of hodgkin lymphoma ?
Classical
non-classical
classification of lymphoma ?
Hodgkin
Non-H
Classical HL types >?n
nodular
mixed cellularity
lymphocyte rich
lymphocyte depleted
Non-classical HL ?
lymphocyte predominant
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hall mark of HL ?
RS cells
what is Reed sterberg cells >
malignant lymphoid cells of B cell origin
Major hallmark of HL >
RS cells
pleomorphic infiltration
RS cells diameter ?
45 micro meter
Characteristics of RS cells ?
1.bi-lobed nucleus = two halves = mirror image
2.nucleus = contain = inclusion like nucleolus = surrounded by a clear zone (halo) = owl eye appearance
3.nucleus = surround by T lymphocyte + plasma cells + eosinophilic cytopolasm
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why owl eye appearance??
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nucleus = contain = inclusion like nucleolus = surrounded by a clear zone (halo) = owl eye appearance
lacunar cell in which subtypes ?
nodular sclerosis
nucleus condition in RS cells
3.nucleus = surround by T lymphocyte + plasma cells + eosinophilic cytopolasm
other example of RS cells ?
infectious mononulceosis
CLL
non-HL
solid tissue cancer
RS cells type ?
mononuclear
lacunar
lympho-histocytic
special appearance of RS cells ?
pop-corn cell
why popcorn cell ?
puffy n
abundant pale cytoplasm
= popped corn
lympho-histocytic in which sub-type ?
Lymphocyte predominant
most common subtype ?
nodular sclerosis
HL classification by whom ?>?
WHO
non-HL etiology ?
virus -HCV HHV-8 HIV
what is burkitt lymphoma ?
translocation of the MYC gene on chromosome-8 that lead to inc MYC protein level