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DISEASES INDEX [N]

Common Diseases List (N): Find medical advices, information and definitions about common diseases, illnesses, disorders, syndroms and deficincies. What are the signs, symptoms, causes, diagnosis, management, and treatments information. Click the disease link to view details.

The Naegeli syndrome, otherwise known as the Naegeli-Franceschetti-Jadassohn syndrome, is a rare skin condition. This genetic defect is autosomal dominant in form, with pigmentation of the reticular skin as the most striking characteristic. Named after Professor Oskar Naegeli, a Swiss dermatologist ...
Naegleria pertains to a rare infection caused by an amoeba called Naegleria fowleri which invades the brain, causing inflammation & destroying the brain tissue....
Naegleria infection is a rare infection or disease whereby the naegleria amoeba enters the body through the nose while swimming or other water activity, which goes to the brain through the ofactory nerve thereby causing inflammation or swelling & eventually to the destruction of the brain tissues....
Nail avulsion is the removal of a part or the entirety of the nail from the bed, often as a consequence of destruction of trauma or injury....
Nail fungus results from a fungi infection of the nails which spreads into the nail & causes discoloration & thickening of the nails. Nail Fungal Infection is also called Onychomycosis....
The nail-patella syndrome (NPS) is a genetic disorder inherited through autosomal dominant pattern. This condition is also popularly known as Iliac Horn Syndrome, Hereditary Onychoostedysplasia, Fong Disease or Turner-Kiser Syndrome....
Nappy rash is a common ailment experienced by babies. It is characterized by rashes & irritation on the bowel caused by bacteria & fungi due to improper hygiene procedures....
Narcissistic personality disorder is a mental disorder in which people have an inflated sense of their own importance & a deep need for admiration. They believe that they are superior to others & have little regard for other people's feelings. However behind this mask of ultra-confidence lies a frag...
Narcolepsy is a neurological condition wherein patients exhibit excessive daytime sleepiness (EDS). The word itself is derived from the French word narcolepsie. It was Jean-Baptiste-╔douard GΘlineau, a 19th century French physician, who first coined the term by combining the Greek words "narke" (mea...
Narcolepsy-Cataplexy is a sleep disorder. Affected individuals are extremely drowsy even during the daytime; they may also fall asleep regardless of the time. After taking a short nap, persons with narcolepsy will feel & look rejuvenated & revived but after a short while will feel drowsy again....
Nasal Polyps are the soft & usually not cancerous or benign growth of polyps in the lining of the nose or the sinuses....
Nasopharyngeal cancer is a malignant tumor that grows in the nasopharynx. This tumor blocks the passageways in that open the upper throat. This passage is also where the olfactory tubes open into the throat....
Nasopharyngeal carcinoma is cancer originating in the nasal part of the pharynx, which is the topmost region of the throat; the area where the nasal passes & the auditory tubes join the remaining portions of the upper respiratory tract....
Naxos Disease is an autosomal recessive modification of Arrhythmogenic right ventricular dysplasia (ARVD, also known as Arrhythmogenic right ventricular cardiomyopathy or ARVC). It is a very rare syndrome characterized primarily by the heart disease & wooly hair....
Nearsightedness otherwise known as the myopia is a condition whereby the person can see clearly the objects near him clearly but not those which are far away which are usually blurred....
Neck cancer (or, more appropriately, head & neck cancer) pertains to a group of biologically related carcinomas that originate from the upper aerodigestive tract, including: the cavity (mouth), lip, paranasal sinuses, oral nasal cavity, larynx & pharynx. In most cases, head & neck cancers originate ...
Neck pain is a medical condition where there is an acute & chronic pain in the neck which may be caused by poor posture....
Necrotizing fasciitis also known as fasciitis necroticans is a rare infection of the deeper skin layers & subcutaneous tissues spreading in the superficial & deep fascia enough to produce thrombosis of the subcutaneous vessels & eventually gangrene in the underlying tissues. This medical condition i...
Neisseria Meningitidis is simply referred to as meningococcus. It is a gram-negative diplococcal bacterium that is remarkably known for its significant role in meningitis, which is medically known as the inflammation of the meninges. Neisseria Meningitidis is the only form of bacterial meningitis id...
Nelson syndrome definition: Nelson's Syndrome is the rapid enlargement of a pituitary tumor that comes about after removing both adrenal glands....
Nemaline myopathy is a congenital hereditary neuromuscular disorder that causes muscular weakness that continuously progresses & with varying severity. It is also known as rod myopathy or nemaline rod myopathy. Nemaline myopathy is a clinical & genetical heterogeneous disease. This disorder has two ...
Neonatal ALD (short for neonatal adenoleukodystrophy) is a genetic disease affecting infants, causing damage to the adrenal gland & the myelin sheath, or the protective coating of the nerve cells....
Neonatal Hemochromatosis is a rare & severe liver disease. It is also known as perinatal hemochromatosis or neonatal iron storage disease....
Neonatal hepatitis also known as perinatal hepatitis is a rare fulminant liver disease. It is characterized by extremely excessive deposition of iron in the liver, pancreas, endocrine glands & heart. It is a life threatening condition wherein death is common during the fetal or infant stage....
Neonatal herpes is a rare but serious medical condition. It is usually the result of vertical transmission of the virus from mother-to-newborn child. There are also cases when the disease is acquired afterbirth from parent, caretaker or sibling....
Neonatal jaundice pertains to the yellowing of a newborn infant's skin due to a buildup of indirect unconjugated bilirubin in the skin....
Neonatal lupus (short for Neonatal lupus erythematosus) is a rare disease that results from the transplacental passage of maternal autoantibodies....
Neonatal myasthenia is a postsynaptic neuromuscular transmission defect that arises as a complication in the infants of mothers with myasthenia gravis, an autoimmune disease that affects the transmission of signals from nerves to muscles....
Neonatal ophthalmitis pertains to a discharge of pus from the eye of a newborn infant. It is also alternatively known as opthalmia neonatorum....
Neonatal respiratory distress syndrome pertains to a relatively common complication affecting prematurely born infants. Also called infant respiratory distress syndrome (IRDS), hyaline membrane disease, or respiratory distress syndrome in infants, this condition is characterized by breathing difficu...
Neonatal tetanus is a serious tetanus infection of newborn infants. It is also alternatively known as tetatnus neonatorum. In general, tetanus can affect people of all ages; but in babies, this disease is particularly serious & may be fatal....
Neonatal transient jaundice definition: Neonatal Jaundice is the yellowing of the skin & other tissues of a newborn infant due to accumulation of indirect unconjugated bilirubin in the skin. This is the result of an overall increase in the total bilirubin in the blood....
Nephritis pertains to kidney inflammation, often as a result of toxins, infections & auto-immune diseases. The term nephritis is derived from the Greek words "nephro", which means "of the kidney" & "itis", meaning "inflammation"....
Nephroblastoma definition: Neuroblastoma is a type of cancer which affects infants & children which usually occurs & develops in the nerve cells of the body. It usually occurs in & around the adrenal glands but it some cases it may also grow in the chest, neck & pelvis....
Nephrocalcinosis is a condition wherein calcium salt deposits affect the function of the kidney. The condition is most commonly seen as an incidental finding for medullary sponge kidney through an x-ray of the abdomen....
Nephrogenic diabetes insipidus definition: Diabetes Insipidus is a medical condition referring to inability of the kidney to concentrate urine; characterized by excretion of large amounts of severely diluted urine that cannot be trimmed down even if you reduce the amount of fluid intake....
Nephropathy pertains to disease or damage of the kidney. Previously, nephropathy was known by its older term, nephrosis....
Nephrosclerosis is a medical condition referred to as hypertensive nephropathy, which is a medical condition indicating damage to the kidney because of chronic high blood pressure. Nephrosclerosis is characterized by hardening of the kidney's artery & arterioles....
Nephrotic syndrome is a nonspecific disorder in which the kidneys are damaged instigating them to leak large protein amounts from the blood into the urine....
Nerve cancer pertains to a type of carcinoma affecting the nerve cells, often involving a tumor that originates from the cells of the nervous system. Nerve cancer is also usually associated with brain cancer....
Nervous breakdown is a term used in reference to a wide range of mental illnesses. Nervous breakdown is definitely not a medical or clinical term; & nor does it pertain to any specific type of mental disorder. In general, the term describes an episode of extreme emotional distraught or an event in w...
Nervous system, paraneoplastic syndromes definition: Paraneoplastic syndromes particularly that of the nervous system is a result of the body's reaction to the presence of cancer or to substances that an existing tumor located in the nervous system may produce....
Neural Tube Defect, folate-sensitive Neural tube defect is a medical condition pertaining to any defect occurring in the neural tube. These are the most common & highly devastating as well as disabling birth defect. Spina bifida is an example of a neural tube defect. Neurolation is a part of organog...
Neuralgia pertains to an intense pain caused by damage to or irritation of a nerve....
Neuralgia, postherpetic definition: Postherpetic neuralgia, said to be a complication of shingles & outbreak for the second time of the varicella-zoster virus, is a medical condition characterized by pain which usually produces rashes & blisters in the nerve fibers of the skin. It is said to be the remains of for example a chicken pox...
Neuraminidase deficiency is a medical condition caused by insufficient amounts of neuraminidase, a glycoside hydrolase enzyme, which is known to one of the enzymes present on the surface of the Influenza virus. Deficiency of neuraminidase results to the development of a rare lysosomal storage diseas...
Neurasthenia is a medical condition also known as Chronic Fatigue Syndrome. It is characterized by a combination of fatigue, headache, anxiety, headache, neuralgia or painful disorders of the nerve, depression or any turndown in the mood & impotence (the inability to develop erection of the penis). ...
Neuritis is a term used to describe a general inflammation of the peripheral nervous system, affecting either a single nerve or a series of nerves in various parts of the body....
Neuroacanthocytosis is also known as Levine-Critchley syndrome or chorea-acanthocytosis). It is a rare movement disorder. This disorder has adult & childhood varieties. Neuroacanthocytosis is typically an inherited autosomal recessive disorder. Occurrence is more prevalent in males than in females....
Neuroblastoma is a neuroendocrine tumor, originating from any neural crest element of the sympathetic nervous system (SNS). The sympathetic nervous system is a branch of the autonomic nervous system. It is a nerve network responsible for carrying messages from the brain throughout the whole body. It...
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