Hi welcome to HCM,
Calyceal system means collection part of kidney
, which is dilated due to urine is known as fullness . It may be full urinary bladder
or lower ureteric stone.
is normal, portal vain is normal upto 12 mm.
is not seen as there is gas in stomach. Pancreas lies behind the stomac.
Overall your report appears normal, no need worry at all.