Situs inversus describes a mirror image of situs solitus. Effects 0.1% of population and has a 5% association with congential heart disease.
Heterotaxy is the disordered organ arrangement in the chest or abdomen, aka situs ambiguous.
Situs solitus is the usual arrangement of organs and vessels within the body.
Kartagener syndrome: situs inversus, nasal polyps, chronic sinusitis and bronchiectasis (caused by immobile cilia).
Polysplenia: left isomerism or bilateral left sidedness.
Asplenia: right isomerism or bilateral right sidedness, both lungs have three lobes.