The topic Allergic Angiitis and Granulomatosis you are seeking is a synonym, or alternative name, or is closely related to the medical condition Churg-Strauss Syndrome.

Quick Summary:

• Churg-Strauss Syndrome is a rare autoimmune disorder affecting small blood vessels and airways of the lungs.
• It causes allergic rhinitis, asthma, and increased eosinophils in blood (eosinophilia). Different individuals can have different set of signs and symptoms.
• It cannot be transmitted from person to person. It cannot be inherited from parents or transmitted to children.
• It can be confused with a disorder called polyarteritis nodosa with which it shares some similarities. Churg-Strauss Syndrome is different from Polyarteritis Nodosa.

Churg-Strauss Syndrome can occur in three stages:

• First stage (allergic stage) is called the prodromal stage, which is characterized by asthma and allergic rhinitis due to inflammation of airways of the lungs.
• The second stage (Eosinophilic stage) is characterized by increased number of eosinophils in the blood called hypereosinophilia. This increased number of eosinophils (termed as “peripheral eosinophilia”) causes tissue damage in the lungs and gastrointestinal tract.
• The third stage (Vasculitis stage) is characterized by inflammation in the blood vessels called Vasculitis. This Vasculitis disrupts blood in different types of organs such as lungs, kidney, heart, peripheral nerves and brain that may lead to a severe and life threatening situation. This stage can eventually lead to necrosis and is potentially life threatening.

Not all individuals will have all the three stages as described above. 

Please find comprehensive information on Churg-Strauss Syndrome regarding definition, distribution, risk factors, causes, signs & symptoms, diagnosis, complications, treatment, prevention, prognosis, and additional useful information HERE.