Publication: Further histological observations on popliteal lymph nodes after interruption of the afferent lymphatic vessels
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Date
1993
Authors
Hoshi, H. ; Takemoto, R. ; Nagata, H. ; Horie, K. ; Murakami, G. ; Suzuki, S.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Lymphatic vessels afferent to the popliteal
nodes i n young adult rats and guinea pigs were
interrupted at the lowest edge of the popliteal fossa, and
regressive changes in the nodes occurring 4 to 16 or 18
weeks after surgery were re-examined histologically. In
the rat, some popliteal nodes were drained by lymphatic
channel(s) from the tail. After surgery, the poplireal
nodes without lymphatic channel(s) from the tail
underwent regression of all their constit~lent deep
cortical units and also the peripheral cortex comprising
lymph follicles, until at 18 weeks, the lymphoid
organization of the node reached a minimal level. On the
other hand, in popliteal nodes having a lymphatic
channel from the tail, some deep cortical units and the
overlying peripheral cortex underwent hypotrophy,
leaving the remaining units and their overlying
peripheral cortex little affected. In the guinea pig, the
treated nodes underwent progressive atrophy and
ultimately became rudimentary, or even vanished, after
16 weeks. Treated rudimentary nodes were composed
largely of stromal cells only, and these were replaced to
21 various extent by fat. The present results are discussed
in relation to complete and incomplete inhibition of the
afferent lymph flowing into the surgically treated nodes.
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