Pneumonitis is often used interchangeably with pneumonia, but pneumonia usually implies an
infectiousInfectious endocarditis
Infectious mononucleosis
Infectious mononucleosis #3 cause, whereas pneumonitis usually implies a non-infectious cause. The
infectiousInfectious endocarditis
Infectious mononucleosis
Infectious mononucleosis #3 pneumonias can be caused by any of hundreds of bacteria, viruses, parasites and
fungiFungi-guard
Fungi-nail. The non-infectious pneumonias are generally autoimmune or allergic and, not infrequently, of unknown cause. Pneumonitis can, indeed, be the result of an allergic drug
reactionAllergic reactions
Allergic reactions to medication
Dermatitis, reaction to tinea
Drug allergies
Febrile/cold agglutinins
Insect bite reaction - close-up
Intradermal allergy test reactions
Positive reaction to allergen
Transfusion reaction.
Given the wide range of causes of X-ray shadows that indicate pneumonia or pneumonitis, a careful evaluation by a physician knowledgeable about pneumonia/pneumonitis, such as a lung specialist or pulmonologist, is warranted. The likelihood of certain pneumonias is greater, depending on the
livingAdvanced care directives situation of an individual; for example, community-acquired vs. those that are hospital acquired.