Final answer:
GCA may refer to Chronic granulomatous disease (CGD), which is an immune deficiency leading to recurrent infections and granuloma formation, assuming GCA is an abbreviation or typo in this context.
Step-by-step explanation:
The acronym GCA in a medical context can be associated with Giant Cell Arteritis, which is not listed among the conditions provided. However, given the list provided, it seems probable that GCA could be a typo or abbreviation for Chronic granulomatous disease (CGD), which is an immune deficiency that leads to recurrent infections and granuloma formation. To provide a step-by-step explanation:
- Chronic granulomatous disease is a disorder characterized by the inability of phagocytes, a type of white blood cell, to produce a burst of reactive oxygen species that is needed to efficiently kill certain ingested pathogens.
- As a result, individuals with CGD are more susceptible to infections, particularly from bacteria and fungi.
- They may develop granulomas, which are masses of immune cells that form in an attempt to wall off substances perceived as foreign but are unable to eliminate effectively due to the underlying defect.
If GCA is intended to refer to Chronic granulomatous disease, this would be the associated condition from the list provided. Please double-check the abbreviation to confirm the intended reference.