In some cases, doctors can't find the cause of the pleurisy. The most common cause of pleural effusion, or fluid in the pleural space, is congestive heart failure. Lung cancer, pneumonia, tuberculosis, and other lung infections also can cause swelling of the pleura and lead to a pleural effusion.
Extrapyramidal symptoms (also known as EPS) are a set of side effects that are common with antipsychotic medications, as well as with a few other types of medications. Antipsychotics are prescription medications used to treat psychotic disorders, such as schizophrenia, schizoaffective disorder, or psychotic depression.
Arthralgia is the presenting feature in as many as 25% of cases. Joints may be swollen, tender, and painful. Warmth, erythema, and effusions are not typically associated with HSP. The knees and ankles are most commonly affected. On rare occasions, symptoms involve the fingers and wrists. Findings are transient but can occur again during active disease.