<s>[INST] My husband has had an enlarged lymph node on the right side of his groin for over a year. One doctor treated it with steroids, another one recently gave him two injections at the site with cortisone, this weekend the one on the left side grew to four times the enlarged one and ruptured causing him to vomit violently for hours and rushed to the hospital for emergency surgery where they removed both lymph nodes?  What would cause this?  He does physical labor and lifts heavy things, all his blood test came back good and otherwise he is in good health.  He is 62 years old.. [/INST] Hello, The enlarged lymph node in groin region is usually due to reactive enlargement of lymph node. However, FNAC or histopathology examination from biopsy specimen could be more diagnostic to reach up to diagnosis. You have mentioned that lymph nodes were removed. So kindly send it in nearby laboratory for histopathology examination. Hope I have answered your question. Let me know if I can assist you further.  </s>