Pho disease, more accurately referred to as PHO (Primary Hypertrophic Osteoarthropathy), is a genetic type of Hypertrophic Osteoarthropathy (HOA). HOA results in clubbing of the fingers or toes. There are two types: primary (PHO) and secondary (SHO). Genetics cause PHO, and underlying conditions cause SHO. Providers diagnose HOA with a physical exam and specific tests.
In simpler terms, if someone asks about "Pho disease", they are likely asking about a specific genetic form of a broader condition called Hypertrophic Osteoarthropathy.
Here's a breakdown:
- Hypertrophic Osteoarthropathy (HOA): A condition characterized by clubbing of fingers and toes.
- Primary Hypertrophic Osteoarthropathy (PHO): The genetic form of HOA.
- Secondary Hypertrophic Osteoarthropathy (SHO): HOA caused by underlying medical conditions.
Therefore, "Pho disease" refers to the genetically inherited form of Hypertrophic Osteoarthropathy.
