Found blood in urine with some enlarged lymph nodes, what tests need to done?

My question is regarding my mother; she is 62 yrs. old with no previous medical concerns, non-smoker, and non-drinker. However she does not regularly see a doctor for annual check ups. Just this month she cancelled a trip over seas due to finding blood in her urine. Ever since then she has had all kinds of testing done including: a physical with breast exam, blood work (Glucose-fasting, cholesterol, TSH, CBC), urinalysis, mammogram and bone densitometry, seen an OBGYN and had a pap, and a pelvic/abdominal ultrasound. Out of all these tests the bone densitometry showed signs of osteoporosis and the abdominal ultrasound showed some enlarged lymph nodes, everything else was normal including WBC. So her doctor recommended an abdominal/pelvic CT scan to “rule out malignancy” we did the CT and everything was normal except “at least 3 enlarged lymph nodes within the root of the small bowel mesentery the largest measuring 3.3x 1.8 x 2.9 cm. There is no pelvic or inguinal lymphadenopathy by size criteria. No ascites” –this is quoting the radiologists report. In this report he recommended we follow up with a chest CT to look for any other lymphadenopathy or overt intrathoracic malignancies and also that we biopsy the abdominal lymph nodes by ultrasound guided fine needle aspiration. So we did the chest CT and it came back as a normal chest CT with “no signs of intrathoracic lymphadenopathy”. Now we are booked in for the Fine needle biopsy on Thursday. My question is have we missed looking into anything that may have caused these 3 enlarged lymph nodes or could this be a purely isolated case? Would a PET scan help diagnose anything lurking that we may have missed? I understand that lymphoma could be a possible diagnosis and that is why they are doing the biopsy but does lymphoma generally start in the abdominal lymph nodes?
Thank you very much

Urgency in urination now with blood

For past some time I have been noticing urgency in urination and sometimes to the level of unrest, for not being be close to a washroom. I did ignore it as I consume lot of water and gradually I scaled down the quantity of water intake. However, for past some days I observe strange smell (resembling odour of semen after and during the urination. I did not pay proper attention to this issue except discussing the matter with my physician who just brushed it a normal thing. However, today I feel body ache, with mild temperatures and the urine is coming out in very small quantity but the frequency is more. There is penile pain during the urination which continues for a shortwhile after the urination. One hour past, I felt the change in colour of my urine and I feel as if the blood is coming out with the urine for the colour of urine got changed. kindly advise as to what should I do on priority basis. Is there any reason to worry beyond reason?

I have not any significant medical history and got my body profile examined in July the reports of which do not suggest anything.
I did take a DoLo-650 tablet today morning, to address my fever issue.

Question: Pure blood in urine…quite a lot

I am a 63yr old male and over the last few months I have been peeing blood on average every six wks or so, this problem has just returned yesterday, I am peeing pure blood and quite a lot, I have back ache and a bit of pain in my stomach. I am having problems peeing sometimes go fine and other times can’t go. I am residing in Portugal at the moment but have a months holiday booked for S. Africa this coming weekend, do you think it will be ok for me to go or should I cancel my trip and seek medical advise instead? The confusing thing is that this problem goes away for a number of weeks before returning. I have had blood and urine tests that have come back clear and my doctor said it could be a build up of calcium that can cut and cause bleeding which leaves me very confused and worried.
I do hope you can help.