HI,Welcome to HCM with your query.
Based on the facts of your query,you seem to have a Incarcerated/Impacted Spigelian Hernia(if its on the right side of the center) Epigastric Ventral Hernia(if its in the center below the
rib cage),out from central weakness in the Linea alba of the Rectus Abdominis sheath.
The very fact that existing lump under right rib cage has grown bigger after pushing the failed car,confirms this lump to be from existing Spigelian / or
Epigastric Hernia.
USG study of the lump in the rib cage would confirm the obstructed/impacted herniated contents,which are non Reducible.Thus the diagnosis comes down to-Impacted Spigelian Hernia right side.
Surgeons
Second opinion would confirm its exact nature and would plan treatment accordingly.
Hope this would help you to plan treatment with your doctor.
Will appreciate hitting thanks and writing review comments to benefit needy patient visitors at HCM like you.
Good day.
Dr.Savaskar M.N.
Senior Surgical Specialist.
M.S.Genl-CVTS.