What is mucormycosis Mucormycosis previously called zygomycosis, is the unifying term used to describe rare opportunistic life-threatening infections of the sinuses, brain, or lungs caused by

What is genetic mosaicism Mosaicism or chromosomal mosaicism, is an abnormal chromosome division resulting in two or more kinds of cells, each containing different numbers of

Minimal change disease Minimal change disease also called "nil disease", minimal change lesion or lipoid nephrosis (a description of lipid droplets in urine seen on light

What is methylmalonic acid Methylmalonic acid is a malonic acid derivative which is a vital intermediate in the metabolism of fat and protein. Methylmalonic acid

What is meningococcemia Meningococcemia also known as meningococcal septicemia or meningococcal bacteremia, is an acute (sudden onset) infection of the bloodstream and subsequent vasculitis (inflammation of

What is meatal stenosis Meatal stenosis is a narrowing of the opening of the urethra, the tube through which urine leaves the body. Urinary meatal

What is a mastoidectomy A mastoidectomy is surgery to remove cells in the hollow, air-filled spaces in the skull behind the ear within the mastoid

What is Meckel’s diverticulum Meckel’s diverticulum is a small pouch on the wall of the lower part of the small intestine, near the junction of

What is malignant hypertension Malignant hypertension also called hypertensive emergency or hypertensive crisis, is very high blood pressure that comes on suddenly and quickly. Malignant

What is macroglossia Macroglossia is an abnormally large tongue in proportion to other structures in the mouth. Macroglossia can be associated with a wide range