A3-year-old is brought to the clinic complaining of a painful right elbow. he is holding the right arm slightly flexed and pronated and refuses to move it. the mother states that symptoms started right after his older brother had been swinging him around by his arms. this presentation supports a diagnosis of:
a. radial head subluxation.
b. femoral anteversion.
c. carpal tunnel syndrome.
d. osgood-schlatter disease.
e. osteomyelitis.

The answer is A radial head subluxation

Explanation:

The subluxation of the head of the radius occurs when abruptly rises and holds the child in the air; It is a very common lesion in children under 5 years since the elbow joint is not fully developed in this age group (0-5 years old).

the ileocecal valve (also called bauhin valve), which limits the rate of food passage into the cecum and may prevent material from returning to the small intestine.