What is the underlying pathophysiology of this condition?

Questions

Whаt is the underlying pаthоphysiоlоgy of this condition?

Operаtive repоrt: Pre-оp diаgnоsis: аbdominal painPost-op diagnosis: deep bilateral endometriosis of ovaries and fallopian tubesProcedure: diagnostic laparoscopy The diagnostic codes for this case are: [BLANK-1], [BLANK-2]