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Neonatal onset multisystem inflammatory disease
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Neonatal onset multisystem inflammatory disease : ウィキペディア英語版
Neonatal onset multisystem inflammatory disease

Neonatal onset multisystem inflammatory disease (abbreviated NOMID, also known as chronic infantile neurologic cutaneous and articular syndrome,〔James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. ISBN 0-7216-2921-0.〕 or CINCA) is a rare genetic periodic fever syndrome which causes uncontrolled inflammation in multiple parts of the body starting in the newborn period. Symptoms include skin rashes, severe arthritis, and chronic meningitis leading to neurologic damage. It is one of the cryopyrin-associated periodic syndromes.
NOMID can result from a mutation in the ''CIAS1'' gene (also known as ''NLRP3'' gene), which helps control inflammation. Mutations in this gene also cause familial cold urticaria and Muckle-Wells syndrome. NOMID has been successfully treated with the drug anakinra.
This syndrome is also known as the Prieur-Griscelli syndrome as it was first described by these authors in 1981.〔Prieur AM, Griscelli C (1981) Arthropathy with rash, chronic meningitis, eye lesions, and mental retardation. J. Pediat 99:79-83〕
==Signs and symptoms==

The age of onset is almost always before 3 months of age. Many infants are born preterm (1/3 cases) and dysmature. The babies are frequently small for dates. The placenta may be abnormal with non-specific inflammation on histology. Umbilical cord anomalies have occasionally been reported. In severe cases, signs in the brain may be detected on prenatal ultrasound.
The presentation is pleiomorphic, making the diagnosis difficult, but the most common features of this disease involve the skin, joints, and central nervous system.
All have a maculopapular urticarial skin rash that is often present at birth (75% cases). It is probably more correctly described as an urticarial-like rash. The presence of the rash varies with time, and biopsy of these skin lesions shows a perivascular inflammatory infiltrate including granulocytes.
In about 35-65% of cases, arthritis occurs. Joint signs are variably expressed and can lead to transient swelling without sequelae between crises, or to unpredictable anomalies of growth cartilage and long bones epiphyses suggestive of a pseudo-tumour. Biopsies reveal hypertrophic cartilage without inflammatory cells. This most commonly affects the large joints (knees, ankles, elbows, and wrists) but may also involve the small joints of the hands and feet. It is usually bilateral and painful. A common and characteristic feature is giant kneecaps. Severe cases may result in contractures (joint deformities).
Most patients eventually have neurological problems. These manifest themselves in three principal ways: chronic meningitis, involvement of the both the optic tract and eye, and sensorineural hearing loss. The chronic meningitis presents with the features of chronically raised intracranial pressure: headaches, vomiting, ventriculomegaly, hydrocephalus, macromegaly, cerebral atrophy, and optic atrophy. Some of these features may be evidenced on prenatal ultrasound. In 50% of cases, intellectual deficit occurs. Seizures occur in 25% of cases, but other manifestations are rare. Histological examination shows infiltration of the meninges with polymorphs.
Ocular manifestations occur in 80% of cases and include uveitis (70%), papillary involvement, conjunctivitis, and optical neuritis. If untreated, these may result in blindness (25%). The sensorineural hearing loss occurs in 75%, and tends to be progressive leading to deafness in 20% of cases.
Almost all children are remarkably short and have growth delay. Fever is extremely common but inconstant and is most often mild. Anemia is frequent. Other findings that have been reported include macrocephaly (95%), large fontanelle, prominent forehead, flattening of the nasal bridge (saddleback nose), short and thick extremities, and finger clubbing. The liver and/or spleen may be enlarged. Lymph node enlargement may also be present.
Later in life, secondary amyloidosis may occur. Delayed puberty and secondary amenorrhoea are not uncommon. Hoarseness due to inflammation of the laryngeal cartilage has also been reported.

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