title: How to determine atrial situs? Considerations initiated by 3 cases of absent spleen with a discordant anatomy between bronchi and atria.
mesh_terms: D001980:Bronchi / Q000002:abnormalities; D005260:Female; D006325:Heart Atria / Q000002:abnormalities; D006330:Heart Defects, Congenital / Q000145:classification* / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D013154:Spleen / Q000002:abnormalities; D014132:Trachea / Q000002:abnormalities