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.
The Facts. The pinworm, or Enterobius vermicularis, is a small parasitic worm that can live inside the human lower intestine. Only 3 mm to 10 mm long, it causes an intense itching in the area of an infected person's anus, especially at night. Pinworms usually infect people as a result of overcrowding in schools and family groupings or due to unsanitary living conditions and poor food preparation.