Ovarian tumors - Differances between benign and malignant tumors

Benign tumors:
-The onset of benign tumors can occur at young age to middle age.
-Benign tumors are slow growing.
- They are normally unilateral.
-Benign tumors are mobile.
-They will normally present with cystic consistency.
-Normally with no ascitic fluid or nodules in pouch of douglas.
-Ultrasound shows, unilocular or multilocular cyst with thin capsule, thin septum and thin papillary projections.
-Gross appearance presents with intact capsule, no adhesions, no peritoneal seedlings.

Malignant tumors:
-The onset of malignant tumors occurs at extremes of age.
-They grow rapidly.
-They present normally biilaterally. -They will be fixed to surrounding structures normally.
-They present with solid or variegated consistency.
-Normally there will be ascitic fluid and nodules in pouch of douglas.
-Ultrasound shows, solid or cystic consistency with echogenic areas, with thick capsule, thick >5mm septum and coarse papillary projections.
-Gross appearance showing intact or ruptured capsule, with adhesions,haemorrhagic fluid, with peritoneal seedlings etc.