Rheumatoid arthritis (RA) is a common condition affecting around 1% of the population. Around 90% of patients with RA have cervical spine involvement with between 11% and 58% of these patients having neurological involvement.3,4 Many of these patients have cervical myelopathy.
Pinworms are a type of parasite that lives in the digestive system of humans. They are common throughout the world. Adult pinworms are about 0.5 in. (12.7 mm) long and look like little white threads. Pinworm eggs are so tiny, you'd need a microscope to see them.
Pinworms (Definition) 1  Pinworms is a condition in which a person (often young children, sometimes parents of young children) has little parasites called pinworms in his large intestine and his poop. Pinworms are threadlike worms about half an inch long, causing the main symptom of butt-itching or butt-scratching in kids.