Hi, thanks for posting the question to H.C.M.C.
usually lies in groin (just above pelvis) on the both side of abdomen .
Kidneys on both side in lumber region , followed by ureter on both side from kidney, than they ( ureter) reaches in pelvis in urinary bladder
from both side , than urine in bladder and from bladder passes through urethra
The rout of urine formation to passing outside is a different rout and nowhere ovarian cyst whether ruptured or as whole intermingle with urine , so pl make one thing clear in your's mind that the blood in the urine didn't relate at all with ovarian cysts.
Fever with chills , rigor, pain in kidney region all are indicative of some kidney ailment.
Since you are feeling pain in the abdomen with above mentioned symptoms the possibilities may be -
1. Renal calculus in one or both kidneys , however U/S of abdomen get but one more U/S required to highlight the K U B ( KIDNEY, URETER, BLADDER) region.
2 . Some infection of kidney ( initial stage) will not reveal in U/S . Might be pyelonephritis
3. Any other disease of kidney.
Pl get blood test
and urine culture and complete test.
So forget about pneumothorax
but concentrate over the blood in urine.