Ciao Joseph, da una rubrica medica su corriere della sera.it la spiegazione a granulia infonodale è la seguente "credo che granulia linfonodale esprima che ci sono piccoli linfonodi verosimilmente senza importanza patologica".
Poi ti indico anche il seguente estratto:
"The tubercles -visible to the naked eye are a little larger
than the fine gray granules of the granulia. 1 Further they are
distributed in loose clusters about the bronchi, and not at hazard
as are the granulia." This is from LESSONS IN PATHOLOGICAL
HISTOLOGY BY GUSTAVE ROUSSY AND IVAN BERTRAM) TRANSLATED FROM THE SECOND FRENCH EDITION BY JOSEPH McFARLAND, M.D., Sc.D. PROFESSOR OF PATHOLOGY AND BACTERIOLOGY IN THE MEDICAL DEPARTMENT OF THE UNIVERSITY OF PENNSYLVANIA

Granulia [pran-u'-le-an) [granula, a little grain]. Em-
pis' name for an acute inflammatory condition dis-
tinct from tuberculosis, but, like it, characterized by the
development of granulations within organs and on
serous surfaces.
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granulìa s. f. [dal fr. granulie, der. del lat. tardo granŭlum «granulo»]. – In medicina, altra denominazione (in uso spec. in Francia) della tubercolosi miliare, per l’aspetto anatomopatologico del polmone, che appare disseminato di tanti piccoli granuli.

http://www.treccani.it/vocabolario/granulia/
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see page 58:
http://scans.library.utoronto.ca/pdf/2/14/frenchenglishmed00...
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HTH