(It sounds similar to how you are describing it it was his lymph nodes. There are numerous lymph nodes around the body, with a high concentration in the neck, groin, and axilla (armpits). They did blood work everything was normal, now it has almost). So at the time I thought it was a swollen lymph node related to that.
Dec 1 20Swollen lymph nodes can be due to a viral or bacterial infection as well as other conditions, such as rheumatoid arthritis and certain cancers including leukemia. But it (sore hard fixed bump) has not changed at all since it first appeared suddenly.
Enlarged or swollen glands, Sore throat, Stiff neck and
Lymph Nodes Neck Pain - Pain Neck Lymph Nodes Neck Pain The lymphatic system is responsible for making and storing antibodies to fight off infectious germs and bacteria that invade the body. Painful Lymph Nodes Along Neck Causes Relief Options Apr 1 20Neck pain along the lymph nodes can be caused by enlargement of the lymph nodes (lymphadenopathy) or inflammation of the lymph nodes (lymphadenitis) 1.