A brain abscess is a collection of infectious material within the tissue of the brain. Bacteria are the most common causative organisms. An abscess can result from intra-cranial surgery, penetrating head injury, or tongue piercing.
Bell's palsy is a disease of the seventh cranial nerve (facial nerve) that produces unilateral or bilateral facial weakness or paralysis.
Status asthmaticus is severe and persistent asthma that does not respond to conventional therapy; attacks can occur with little or no warning and can progress rapidly to asphyxiation.
Urolithiasis refers to stones (calculi) in the urinary tract. Stones are formed in the urinary tract when the urinary concentration of substances such as calcium oxalate, calcium phosphate, and uric acid increases.
Buerger’s disease is a recurring inﬂammation of the intermediate and small arteries and veins of the lower and upper extremities.
Contact dermatitis is an inﬂammatory reaction of the skin to physical, chemical, or biologic agents.
Acromegaly is a rare disorder of excessive bone and soft tissue growth due to elevated levels of growth hormone. In young children, prior the completed fusion and growth of bones, excessive growth hormone can cause a similar condition called gigantism.
Achilles tendonitis is an inflammation and/or degeneration of the Achilles tendon. The Achilles tendon connects the calf muscles to the heel bone.
Acetaminophen poisoning is an overdose of the over-the-counter (OTC) pain medication, acetaminophen (eg, Tylenol, Biogesic), which is usually safe when used as recommended.
An acoustic neuroma is a benign (noncancerous) tumor on the eighth cranial nerve (vestibulocochlear) leading from the brainstem to the ear.