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Perivascular lymphoid tissue associated with the axillary lymph sinus and the lateral vein of Gehyra variegata (Reptilia: Gekkonidae)
Author(s) -
Johnston M. R. L.
Publication year - 1973
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1051390405
Subject(s) - lymphatic system , biology , reticular cell , anatomy , lymph , gekkonidae , reticular connective tissue , lymph node , sinus (botany) , pathology , reticular fiber , vein , spleen , medicine , zoology , psychiatry , immunology , genus , squamata
Abstract The axillary sinus of G. variegata is formed from a perivascular lymphatic which locally invests the lateral vein. Within the sinus the wall of the vein is distended by lymphoid tissue which is itself supported by reticular fibres. Lymphocytes, reticular cells, macrophages and mast cells occur in the tissue. The overall appearance of the structure is lymph node‐like. Although Cardianema sp. (Nematoda:Filarioidea) parasitised the lymphatic system of some geckos examined, the non‐pathologic origin of the lymphoid tissue is indicated by its presence in both axillae of infected and uninfected geckos alike. Comparison is made with lymph nodes and node‐like structures in other vertebrates.