Nearly all the lymphatic glands in the body are involved, and have a characteristic appearance.
The lymphatic glands are hardly affected.
In other cases very serious disorders of the lymphatic system are brought about, of which the most marked is perhaps Elephantiasis.
This state of affairs has no antecedent improbability about it, since in the Vertebrata the coelom is unquestionably confluent with the haemal system through the lymphatic vessels.
In post-mortem examination, the most obvious pathological lesion is hypertrophy of the spleen, which may be very pronounced; the lymphatic glands in the neck, inguinal region, &c., are also often greatly swollen.