Please use the index below to access the condition you require information on. It may take longer to find what you are looking for this way compared with our "search this site" facility in the navigator on the left but we try to point you in the most appropriate direction using this index and therefore the results should be better. For speed, this index has been split into separate alphabetical files:

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PAIS see Androgen Insensitivity syndrome
PANDAS see Sydenham Chorea
PAVMs see Hereditary Haemorrhagic Telangiectasia
PBP see Motor Neurone disease
PCOS see Polycystic Ovary syndrome
PCT see Porphyria
PDA see Pathalogical Demand Avoidance syndrome
PDA see Heart Defects
PDH see Metabolic diseases and see Mitochondrial Cytopathies and related disorders
PEHO syndrome
PEO see Mitochondrial Cytopathies and related disorders
PEPCK see Mitochondrial Cytopathies and related disorders
PET see Pre-eclampsia
PFFD see Lower Limb abnormalities
PFIC see Liver disease
PHHI see Congenital Hyperinsulinism
PHP see Albright Hereditary Osteodystrophy
PID see Primary Immunodeficiencies
PKAN see Neuroacanthocytosis disorders
PKD see Polycystic Kidney disease
PKU see Phenylketonuria
PLS see Motor Neurone disease
PM see Dermatomyositis and Polymyositis
PMA see Motor Neurone disease
PMG see Cortical malformations
PNFA see Frontotemporal Lobar degeneration including Frontotemporal Dementia
PNP see Purine & Pyrimidine Metabolic diseases
PPH see Primary Pulmonary Hypertension
PR PS see Purine & Pyrimidine Metabolic diseases
PSP see Progressive Supranuclear Palsy
PVFS see Chronic Fatigue syndrome / Myalgic Encephalopathy
PVNH see Cortical malformations
PXE see Pseudoxanthoma Elasticum
Pachygyria see Cortical malformations
Paediatric Autoimmune Neuropsychiatric disorder associated with Streptococcus see Sydenham Chorea
Paediatric HIV Infection see HIV Infection and AIDS
Paget Disease
Paget's Disease of Bone see Paget Disease
Pallid Infantile Syncope see Reflex Anoxic Seizures
Pallister Hall syndrome
Pallister-Killian syndrome
Pancreatitis
Panic Attack see Anxiety Disorders
Pantothenate Kinase-associated Neurodegeneration see Neuroacanthocytosis disorders
Panuveitis see Uveitis
Paraneoplastic encephalitis see Encephalitis
Paraneoplastic Pemphigus see Pemphigus Vulgaris
Paramyotonia Congenita see Muscular Dystrophy and neuromuscular disorders
Paraplegia see Spinal Injuries
Parkinson's disease
Paroxysmal extreme pain disorder
Partial Androgen Insensitivity syndrome see Androgen Insensitivity syndrome
Patau syndrome
Pathalogical Demand Avoidance syndrome
Pearson syndrome see Mitochondrial Cytopathies and related disorders
Pelizaeus-Merzbacher disease
Pemphigus Foliaceus see Pemphigus Vulgaris
Pemphigus Vulgaris
Pendred syndrome
Perceptuo-Motor Dysfunction see Dyspraxia
Peripheral Neuropathy
Perisylvian Polymicrogyria see Congenital and Acquired Brain Damage and Dysfunction in Childhood
Periventricular Nodular Heterotopia see Cortical malformations
Peroneal Muscular Atrophy see Charcot-Marie-Tooth disease
Peroxisomal Defects see Metabolic diseases
Persistent Ductus Arteriosus see Heart Defects
Persistent Hyperinsulinaemic Hypoglycaemia of Infancy see Congenital Hyperinsulinism
Persistent Oligoarthritis see Arthritis (Juvenile Idiopathic)
Perthes disease
Peters anomaly/Peters Plus syndrome
Peters Plus syndrome see Peters anomaly/Peters Plus syndrome
Petit Mal see Epilepsy
Pfeiffer syndrome see Craniofacial Conditions
Phenosulphotransferase P Deficiency see Metabolic diseases
Phenylketonuria
Phobia see Anxiety Disorders
Phosphoenolpyruvate Carboxykinase Deficiency see Mitochondrial Cytopathies and related disorders
Phosphoribosylpyrophospate Synthetase Superactivity see Purine & Pyrimidine Metabolic diseases
Phosphorylation diseases see Mitochondrial Cytopathies and related disorders
Pick's disease see Frontotemporal Lobar degeneration including Frontotemporal Dementia
Pierre Robin sequence see Pierre Robin syndrome
Pierre Robin syndrome
Pigmentary Mosaicism see Hypomelanosis of Ito
Pitt-Rogers-Danks syndrome see Wolf-Hirschhorn syndrome
Pituitary Disorders
Pneumocystic Carinii Pneumonia see HIV Infection and AIDS
Pneumocystis Pneumonia see HIV Infection and AIDS
Poland syndrome
Poliomyelitis
Polyarthritis see Arthritis (Juvenile Idiopathic)
Polyarticular Arthritis see Arthritis (Juvenile Idiopathic)
Polycystic Kidney disease
Polycystic Ovarian disease see Polycystic Ovary syndrome
Polycystic Ovary syndrome
Polymalgia Rheumatica see Arthritis (Adult)
Polymicrogyria see Cortical malformations
Polymyositis see Dermatomyositis and Polymyositis
Polyneuropathy see Peripheral Neuropathy
Pompe disease
Porencephaly
Porphyria
Porphyria - Protoporphyria Proto see Porphyria
Porphyria Cutanea Tarda see Porphyria
Port Wine Stains see Vascular Birthmarks
Post-infectious encephalitis see Encephalitis
Post-infectious Radiculoneuropathy see Guillain-Barré syndrome
Post-Polio syndrome see Poliomyelitis
Post Viral Fatigue syndrome see Chronic Fatigue syndrome / Myalgic Encephalopathy
Posterior Uveitis see Uveitis
Potassium channel antibody encephalitis see Encephalitis
Potter syndrome
Powassan virus see Arboviral Encephalitides
Prader-Willi syndrome
Precocious Puberty see Premature Sexual Maturation
Pre-eclampsia
Pre-eclamptic Toxaemia see Pre-eclampsia
Premature Adrenarch see Premature Sexual Maturation
Premature Babies see Prematurity and sick newborn
Premature Sexual Maturation
Prematurity and sick newborn
Primary Ciliary Dyskinesia
Primary Focal Dystonia see Dystonia
Primary Gout see Purine & Pyrimidine Metabolic diseases
Primary Haemophagocytic Lymphohistiocytosis see Histiocytosis
Primary Immunodeficiencies
Primary Lateral Sclerosis see Motor Neurone disease
Primary Progressive Aphasia see Frontotemporal Lobar degeneration including Frontotemporal Dementia
Primary Pulmonary Hypertension
Primary Red Cell Anaemia see Diamond Blackfan syndrome
Primary (systemic) Carnitine deficiency see Fatty Acid Oxidation Disorders
Progeria see Metabolic diseases
Progressive Bulbar Palsy see Motor Neurone disease
Progressive External Opthalmoplegia see Mitochondrial Cytopathies and related disorders
Progressive Familial Intrahepatic Cholestasis see Liver disease
Progressive Hypertrophic Interstitial Polyneuropathy see Muscular Dystrophy and neuromuscular disorders
Progressive Muscular Atrophy see Motor Neurone disease
Progressive Non-Fluent Aphasia see Frontotemporal Lobar degeneration including Frontotemporal Dementia
Progressive Supranuclear Palsy
Prolactinoma see Pituitary Disorders
Properdin Deficiency see Primary Immunodeficiencies
Propionic Acidaemia see Organic Acidaemias
Proteus syndrome
Prothrombin Gene Mutation see Hereditary Thrombophilia
Proximal Focal Femoral deficiency see Lower Limb abnormalities
Prune Belly syndrome
Pseudo TORCH syndrome see Aicardi-Goutières syndrome
Pseudo Achondroplasia see Restricted Growth
Pseudo Hurler Polydystrophy see Mucopolysaccharide diseases and associated diseases
Pseudo Tumour Cerebri see Benign Intracranial Hypertension
Pseudoachondroplasia see Restricted Growth
Pseudocholinesterase Deficiency see Metabolic diseases
Pseudohypoaldosteronism see Metabolic diseases
Pseudohypoparathyroidism Type 1a see Albright Hereditary Osteodystrophy
Pseudohypoparathyroidism Types 1b & 2 see Metabolic Diseases
Pseudopseudo Hypoparathyroidism see Metabolic diseases
Pseudoxanthoma Elasticum
Psoriasis
Psoriatic Arthritis see Arthritis (Juvenile Idiopathic)
Psoriatic Arthropathy
Psoriatic Spondylitis see Psoriatic Arthropathy
Pulmonary Arteriovenous malformations see Arteriovenous malformations
Pulmonary Fibrosis see Lung diseases
Pulmonary Hypertension of the newborn
Pulmonary Stenosis see Heart Defects
Purine & Pyrimidine Metabolic diseases
Purine Metabolism see Purine & Pyrimidine Metabolic diseases
Purine Nucleoside Phosphorylase Deficiency see Purine & Pyrimidine Metabolic diseases
Purtillo's syndrome see Primary Immunodeficiencies
Pyridoxine Dependent Vitamin B deficiency see Metabolic diseases
Pyrimidine 5-nucleotidase deficiency see Purine & Pyrimidine Metabolic diseases
Pyroglutamic Aciduria see Metabolic diseases
Pyruvate Dehydrogenase Complex Deficiency see Metabolic diseases and see Mitochondrial Cytopathies and related disorders
Pyruvate Dehydrogenase Deficiency see Metabolic diseases and see Mitochondrial Cytopathies and related disorders
Pyruvate Kinase Deficiency see Metabolic diseases