Coccidioidomycosis: An infectious disease caused by a fungus called Coccidioides immitis which is found in the soil. Transmission usually occurs through inhalation but can rarely occur through the skin. Very rarely, infection can spread throughout the body to involve the skin, bones, joints, lungs and central nervous system which can be fatal if untreated.
Tuberculosis: Bacterial infection causing nodules forming, most commonly in the lung.
Wegener's granulomatosis: A rare disease involving blood vessel inflammation which can affect the blood flow to various tissues and organs and hence cause damage. The respiratory system and the kidneys are the main systems affected.