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Newborn jaundice

A yellow tinge to the skin and to the whites of the eyes appears in most babies during their first days and usually clears on its own: a newborn's liver…

Newborn respiratory distress syndrome

This is the condition in which a newborn baby's lungs cannot expand properly, so that breathing is hard work from the first minutes of life.

Night terrors and nightmares

Parents arrive with one of two stories. Either the child sits bolt upright in the middle of the night and screams loud enough for the whole house to hear…

Noise sensitivity (hyperacusis)

Hyperacusis is a reduced tolerance of ordinary loudness. Sounds nobody else even registers come across as harsh, deafening and sometimes painful: crockery in…

Non-alcoholic fatty liver disease (NAFLD)

Most people learn of this diagnosis by accident: an abdominal ultrasound done for something else comes back with a line about fatty change in the liver.

Non-allergic rhinitis

The nose blocks and runs all year round, and the allergy tests come back clean. This happens often, and the person either uses a decongestant spray for years…

Non-cancerous (benign) brain tumours

A tumour is called benign when its cells grow slowly, do not invade neighbouring tissue and do not spread around the body.

Non-Hodgkin lymphoma

Lymphoma is a tumour of the lymphocytes, the white blood cells that defend the body against infection.

Non-melanoma skin cancer

Non-melanoma skin cancer is the commonest malignant tumour there is and also the most forgiving: it is nearly always cured, and a small operation is nearly…

Noonan syndrome

Noonan syndrome is a condition present from birth in which a change in a single gene alters a great many things at once: the features of the face, the pace of…

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