When House & his team are in the monster truck during a differential, not a single hair/tie/lab coat was blowing in the wind while House was driving even though it's shown that the windows are rolled down.
Danny says he was cured in state rehab "3 months ago", and then names it as November. This would make the time February or March. Yet both the current look of scenery (at the beginning) with full green leaves and grass, indicates Spring/Summer. As well, #7.17, clearly took place in Summer.
When Chase suggests a possible meningioma or plasmacytoma, he says it may have started out pressing on the olfactory nerve and is now pressing on the optic nerve. Anything affecting the optic nerve would only affect one eye, not both. It's possible Chase meant to say "optic nerves," but a tumor is too slow-growing to cause such a sudden and severe symptom of one eye, much less both simultaneously. There is just no way what he suggests could occur.
Danny's facial hair (still on while he was eating in bed) was not real - the hair line below the nose was was cut straight across and obviously glued on.
House says Refsum disease affects people who cannot tolerate chlorophyll in vegetables, but they actually cannot tolerate a chemical found in dairy and meat that indirectly comes from vegetation. So the disease is worsened by eating meat and milk products, not vegetables.
House says that Cerebellar Ataxia is a symptom of Parkinson's. It is not.
House punishes a member of his team by shooting him with a remote control helicopter, then House inaccurately says he is practicing "negative reinforcement". Negative reinforcement is the withholding or removal of an unpleasant stimulus. He is actually practicing "positive punishment", the application of an unpleasant stimulus. This is a common mistake for a layperson but House would know better than to confuse the two.
When Dominika first meets Wilson, she refers to him as "the Wilson." However, her native language is Russian. Since it is an inflected language and has no articles, linguistically there would be no reason for her to add an extra "the." If she were a native speaker of Russian and had learned English later in life, she would not add the extra "the."