This is a list of diseases starting with the letter "P".

Pa

Pac–Pal

• Pachydermoperiostosis
• Pachygyria
• Pachyonychia congenita Jackson–Lawler type
• Pacman dysplasia
• Paes–Whelan–Modi syndrome
• Paget disease extramammary
• Paget disease juvenile type
• Paget's disease of bone
• Paget's disease of the breast
• Paget's disease, type 1
• Pagon–Bird–Detter syndrome
• Pagon–Stephan syndrome
• Pai–Levkoff syndrome
• Palant cleft palate syndrome
• Palindromic rheumatism
• Pallister–Hall syndrome
• Pallister–Killian syndrome
• Palmer–Pagon syndrome
• Palmitoyl-protein thioesterase deficiency
• Palmoplantar Keratoderma
• Palmoplantar porokeratosis of Mantoux
• Palsy cerebral

Pan

• Panayiotopoulos syndrome
• Pancreas agenesis
• Pancreas divisum
• Pancreatic adenoma
• Pancreatic beta cell agenesis with neonatal diabetes mellitus
• Pancreatic cancer
• Pancreatic carcinoma, familial
• Pancreatic diseases
• Pancreatic islet cell neoplasm
• Pancreatic islet cell tumors
• Pancreatic lipomatosis duodenal stenosis
• Pancreatitis, hereditary
• Pancreatoblastoma
• Panhypopituitarism
• Panic disorder
• Panmyelophthisis aplastic anemia
• Panniculitis
• Panophobia
• Panostotic fibrous dysplasia
• Panthophobia

Pap

• Papilledema
• Papillon–Lefèvre syndrome
• Papillitis of the lingual papillae
• Papillitis of the optic nerve
• Papilloma of choroid plexus
• Papular mucinosis
• Papular urticaria

Par

Para–Pari

• Paracoccidioidomycosis
• Paraganglioma
• Parainfluenza virus type 3 antenatal infection
• Paramyotonia congenita of von Eulenburg
• Paramyotonia congenita
• Paraneoplastic cerebellar degeneration
• Paranoid personality disorder
• Paraomphalocele
• Paraparesis amyotrophy of hands and feet
• Paraphilia
• Paraplegia
• Paraplegia-brachydactyly-cone shaped epiphysis
• Paraplegia-mental retardation-hyperkeratosis
• Parapsoriasis
• Parasitophobia
• Parastremmatic dwarfism
• Parathyroid cancer
• Parathyroid neoplasm
• Paratyphoid fever
• PARC syndrome
• Parenchymatous cortical degeneration of cerebellum
• Paris-Trousseau thrombopenia

Park–Parv

• Parkes Weber syndrome
• Parkinson's disease
• Parkinson dementia Steele type
• Parkinsonism early onset mental retardation
• Parkinsonism
• Paronychia
• Paroxysmal cold hemoglobinuria
• Paroxysmal dystonic choreoathetosis
• Paroxysmal nocturnal hemoglobinuria
• Paroxysmal ventricular fibrillation
• Parry–Romberg syndrome
• Pars planitis
• Parsonage–Turner syndrome
• Partial agenesis of corpus callosum
• Partial atrioventricular canal
• Partial deletion of Y
• Partial gigantism in context of NF
• Partial lissencephaly
• Partington–Anderson syndrome
• Partington–Mulley syndrome
• Parturiphobia
• Paruresis
• Parvovirus antenatal infection

Pas–Pat

• Pascuel–Castroviejo syndrome
• Pashayan syndrome
• Passive-aggressive personality disorder
• Patau syndrome
• Patel–Bixler syndrome
• Patella aplasia, coxa vara, tarsal synostosis
• Patella hypoplasia mental retardation
• Patent ductus arteriosus familial
• Patent ductus arteriosus
• Patterson–Lowry syndrome
• Patterson pseudoleprechaunism syndrome
• Patterson–Stevenson syndrome

Pau–Pav

• Pauciarticular chronic arthritis
• Pavone–Fiumara–Rizzo syndrome

Pe

Pea–Pem

• Peanut hypersensitivity
• Pearson's marrow/pancreas syndrome
• Pediatric T-cell leukemia
• Pediculosis
• Peeling skin syndrome ichthyosis
• PEHO syndrome
• Pelizaeus–Merzbacher brain sclerosis
• Pelizaeus–Merzbacher disease, recessive, acute infantile
• Pelizaeus–Merzbacher disease
• Pelizaeus–Merzbacher leukodystrophy
• Pellagra
• Pellagra like syndrome
• Pellagrophobia
• Pelvic dysplasia arthrogryposis of lower limbs
• Pelvic inflammatory disease
• Pelvic lipomatosis
• Pelvic shoulder dysplasia
• Pemphigus and fogo selvagem
• Pemphigus foliaceus
• Pemphigus vulgaris, familial
• Pemphigus vulgaris
• Pemphigus

Pen–Pep

• Pena–Shokeir syndrome
• Pendred syndrome
• Penile agenesis
• Penoscrotal transposition
• Penta X syndrome
• Pentalogy of Cantrell
• Pentosuria
• Penttinen–Aula syndrome
• PEPCK 1 deficiency
• PEPCK 2 deficiency
• PEPCK deficiency, mitochondrial
• Peptidic growth factors deficiency

Per

• Perceptual disorder

Peri

• Periarteritis nodosa
• Pericardial constriction with growth failure
• Pericardial defect diaphragmatic hernia
• Pericardium absent mental retardation short stature
• Pericardium congenital anomaly
• Perilymphatic fistula
• Perimyositis
• Perinatal infections
• Periodic disease
• Periodic fever, aphthous stomatitis, pharyngitis and adenitis
• Periodic limb movement disorder
• Periodontal disease / Periodontitis
• Perioral dermatitis
• Peripartum cardiomyopathy
• Peripheral blood vessel disorder
• Peripheral nervous disorder
• Peripheral neuroectodermal tumor
• Peripheral neuropathy
• Peripheral T-cell lymphoma
• Peripheral type neurofibromatosis
• Perisylvian syndrome
• Peritonitis
• Periventricular laminar heterotopia
• Periventricular leukomalacia

Perl–Pert

• Perlman syndrome
• Pernicious anemia
• Perniola–Krajewska–Carnevale syndrome
• Perniosis
• Peroxisomal Bifunctional Enzyme Deficiency
• Peroxisomal defects
• Persistent Müllerian duct syndrome
• Persistent parvovirus infection
• Persistent sexual arousal syndrome
• Persistent truncus arteriosus
• Pertussis

Pes–Pey

• Pes planus
• Peters anomaly with cataract
• Peters anomaly
• Peters congenital glaucoma
• Petit–Fryns syndrome
• Petty–Laxova–Wiedemann syndrome
• Peutz–Jeghers syndrome
• Peyronie disease

Pf

• Pfeiffer cardiocranial syndrome
• Pfeiffer–Hirschfelder–Rott syndrome
• Pfeiffer–Kapferer syndrome
• Pfeiffer–Mayer syndrome
• Pfeiffer–Palm–Teller syndrome
• Pfeiffer–Rockelein syndrome
• Pfeiffer–Singer–Zschiesche syndrome
• Pfeiffer syndrome
• Pfeiffer–Tietze–Welte syndrome
• Pfeiffer type acrocephalosyndactyly

Ph

Pha–Phi

• PHACE association
• Phacomatosis fourth
• Phacomatosis pigmentokeratotica
• Phacomatosis pigmentovascularis
• Phalacrophobia
• Pharmacophobia
• Pharyngitis
• Phenobarbital antenatal infection
• Phenobarbital embryopathy
• Phenol sulfotransferase deficiency
• Phenothiazine antenatal infection
• Phenylalanine hydroxylase deficiency
• Phenylalaninemia
• Phenylketonuria type II
• Phenylketonuria
• Phenylketonuric embryopathy
• Pheochromocytoma as part of NF
• Pheochromocytoma
• Philadelphia-negative chronic myeloid leukemia

Pho–Pht

• Phocomelia contractures absent thumb
• Phocomelia ectrodactyly deafness sinus arrhythmia
• Phocomelia Schinzel type
• Phocomelia syndrome
• Phocomelia thrombocytopenia encephalocele
• Phosphate diabetes
• Phosphoenolpyruvate carboxykinase 1 deficiency
• Phosphoenolpyruvate carboxykinase 2 deficiency
• Phosphoenolpyruvate carboxykinase deficiency
• Phosphoglucomutase deficiency type 1
• Phosphoglucomutase deficiency type 2
• Phosphoglucomutase deficiency type 3
• Phosphoglucomutase deficiency type 4
• Phosphoglucomutase deficiency
• Phosphoglycerate kinase 1 deficiency
• Phosphoglycerate kinase deficiency
• Phosphomannoisomerase deficiency
• Phosphoribosylpyrophosphate synthetase deficiency
• Photoaugliaphobia
• Photosensitive epilepsy
• Phthiriophobia

Phy

• Physical urticaria
• Phytanic acid oxidase deficiency
• Phytophotodermatitis

Pi

Pib–Pig

• PIBI(D)S syndrome
• Pica
• Picardi–Lassueur–Little syndrome
• Pick disease
• Pickardt syndrome
• Pie Torcido
• Piebald trait neurologic defects
• Piebaldism
• Piepkorn–Karp–Hickoc syndrome
• Pierre Marie cerebellar ataxia
• Pierre Robin sequence
• Pigmentary retinopathy
• Pigment dispersion syndrome
• Pigmented villonodular synovitis
• Pignata guarino syndrome

Pil–Piu

• Pili canulati
• Pili multigemini
• Pili torti developmental delay neurological abnormalities
• Pili torti nerve deafness
• Pili torti onychodysplasia
• Pili torti
• Pillay syndrome
• Pilo dento ungular dysplasia microcephaly
• Pilonidal cyst
• Pilotto syndrome
• Pinealoma
• Pinheiro–Freire–Maia–Miranda syndrome
• Pinsky–Di George–Harley syndrome
• Pinta
• Pipecolic acidemia
• PIRA
• Pitt–Hopkins syndrome
• Pitt–Rogers–Danks syndrome
• Pituitary dwarfism 1
• Pityriasis lichenoides chronica
• Pityriasis lichenoides et varioliformis acuta
• Pityriasis rubra pilaris
• Piussan–Lenaerts–Mathieu syndrome

Pl–Pn

• Placenta disorder
• Placenta neoplasm
• Placental abruption
• Plagiocephaly X linked mental retardation
• Plague
  • Plague, bubonic
  • Plague, meningeal
  • Plague, pharyngeal
  • Plague, pneumonic
  • Plague, septicemic
• Plasmacytoma anaplastic
• Plasmalogenes synthesis deficiency isolated
• Plasminogen activator inhibitor type 1 deficiency, congenital
• Plasminogen deficiency, congenital
• Platelet disorder
• Platyspondylic lethal chondrodysplasia
• Platyspondyly amelogenesis imperfecta
• Pleural effusion
• Pleuritis
• Pleuritis
• Plexosarcoma
• Plummer–Vinson syndrome
• Pneumoconiosis
• Pneumocystis jiroveci pneumonia
• Pneumocystosis
• Pneumonia
• Pneumonia, eosinophilic
• Pneumonoultramicroscopicsilicovolcanoconiosis
• Pneumothorax

Po

Pod–Poi

• Podder-Tolmie syndrome
• POEMS syndrome
• Poedimus kyleopecia mental retardation
• Poikiloderma congenital with bullae Weary type
• Poikiloderma hereditary acrokeratotic Weary type
• Poikiloderma of Kindler
• Poikiloderma of Rothmund–Thomson
• Poikilodermatomyositis mental retardation
• Poikilodermia alopecia retrognathism cleft palate
• Pointer syndrome

Pol

Pola–Poli

• Poland syndrome
• Poliomyelitis (Polio)
• Poliosophobia

Poly

Polya–Polyc

• Polyarteritis nodosa
• Polyarteritis
• Polyarthritis, systemic
• Polyarthritis
• Polychondritis
• Polycystic kidney disease, adult type
• Polycystic kidney disease, infantile type
• Polycystic kidney disease, infantile, type I
• Polycystic kidney disease, recessive type
• Polycystic kidney disease, type 1
• Polycystic kidney disease, type 2
• Polycystic kidney disease, type 3
• Polycystic kidney disease
• Polycystic ovarian disease, familial
• Polycystic ovarian syndrome
• Polycystic ovaries urethral sphincter dysfunction
• Polycythemia vera

Polyd–Polyo

• Polydactyly alopecia seborrheic dermatitis
• Polydactyly cleft lip palate psychomotor retardation
• Polydactyly myopia syndrome
• Polydactyly postaxial dental and vertebral
• Polydactyly postaxial with median cleft of upper lip
• Polydactyly postaxial
• Polydactyly preaxial type 1
• Polydactyly syndrome middle ray duplication
• Polydactyly visceral anomalies cleft lip palate
• Polydactyly
• Polyglucosan body disease, adult
• Polymicrogyria turricephaly hypogenitalism
• Polymorphic catecholergic ventricular tachycardia
• Polymorphic macular degeneration
• Polymorphous low-grade adenocarcinoma
• Polymyalgia rheumatica
• Polymyositis
• Polyneuritis
• Polyneuropathy hand defect
• Polyneuropathy mental retardation acromicria prema
• Polyomavirus Infections
• Polyostotic fibrous dysplasia

Polyp–Polys

• Polyposis, hamartomatous intestinal
• Polyposis skin pigmentation alopecia fingernail changes
• Polysyndactyly cardiac malformation
• Polysyndactyly microcephaly ptosis
• Polysyndactyly orofacial anomalies
• Polysyndactyly overgrowth syndrome
• Polysyndactyly trigonocephaly agenesis of corpus callosum
• Polysyndactyly type 4
• Polysyndactyly type Haas

Pom–Por

• Pompe's disease
• Poncet–Spiegler's cylindroma
• Pontoneocerebellar Hypoplasia
• Popliteal pterygium syndrome lethal type
• Popliteal pterygium syndrome
• Porencephaly cerebellar hypoplasia malformations
• Porencephaly
• Porokeratosis of Mibelli
• Porokeratosis plantaris palmaris et disseminata
• Porokeratosis punctata palmaris et plantaris
• Porphyria
• Porphyria cutanea tarda, familial type
• Porphyria cutanea tarda, sporadic type
• Porphyria cutanea tarda
• Porphyria, acute intermittent
• Porphyria, Ala-D
• Porphyria, congenital erythropoietic
• Porphyria, hereditary coproporphyria
• Portal hypertension due to intrahepatic block
• Portal hypertension
• Portal thrombosis
• Portal vein thrombosis
• Portuguese type amyloidosis

Pos–Pox

• Positive rheumatoid factor polyarthritis
• Post-polio syndrome
• Post Traumatic Stress disorder (PTSD)
• Postaxial polydactyly mental retardation
• Posterior tibial tendon rupture
• Posterior urethral valves
• Posterior uveitis
• Posterior valve urethra
• Post-infectious myocarditis
• Post-partum depression
• Post-traumatic epilepsy
• Postural hypotension
• Potassium aggravated myotonia
• Potassium deficiency (hypokalemia)
• Potter disease type 1
• Potter disease, type 3
• Potter sequence cleft cardiopathy
• Potter syndrome dominant type
• Powell–Buist–Stenzel syndrome
• Powell–Chandra–Saal syndrome
• Powell–Venencie–Gordon syndrome
• Poxviridae disease

Pr

Pra–Pre

• Prader–Willi syndrome
• Prata–Liberal–Goncalves syndrome
• Preaxial deficiency postaxial polydactyly hypospadia
• Preaxial polydactyly colobomata mental retardation
• Precocious epileptic encephalopathy
• Precocious myoclonic encephalopathy
• Precocious puberty
  • Precocious puberty, gonadotropin-dependent
  • Precocious puberty, male limited
• Preeclampsia
• Preeyasombat Viravithya syndrome
• Pregnancy toxemia /hypertension
• Prekallikrein deficiency, congenital
• Premature aging, Okamoto type
• Premature aging
• Premature atherosclerosis photomyoclonic epilepsy
• Premature menopause, familial
• Premature ovarian failure
• Premenstrual dysphoric disorder
• Prenatal infections
• Presbycusis
• Presbyopia

Pri

• Prieto–Badia–Mulas syndrome
• Prieur–Griscelli syndrome
• Primary agammaglobulinemia
• Primary aldosteronism
• Primary alveolar hypoventilation
• Primary amenorrhea
• Primary biliary cirrhosis
• Primary ciliary dyskinesia, 2
• Primary ciliary dyskinesia
• Primary craniosynostosis
• Primary cutaneous amyloidosis
• Primary granulocytic sarcoma
• Primary hyperoxaluria
• Primary hyperparathyroidism
• Primary lateral sclerosis
• Primary malignant lymphoma
• Primary muscular atrophy
• Primary orthostatic tremor
• Primary progressive aphasia
• Primary pulmonary hypertension
• Primary sclerosing cholangitis
• Primary tubular proximal acidosis
• Primerose syndrome
• Primordial microcephalic dwarfism Crachami type
• Prinzmetal's variant angina

Pro

Proc

• Procarcinoma
• Processing disorder
• Proconvertin deficiency, congenital
• Procrastination
• Proctitis

Prog

• Progeria short stature pigmented nevi
• Progeria variant syndrome Ruvalcaba type
• Progeria
• Progeroid syndrome De Barsy type
• Progeroid syndrome Petty type
• Progeroid syndrome, Penttinen type
• Prognathism dominant
• Progressive acromelanosis
• Progressive black carbon hyperpigmentation of infancy
• Progressive diaphyseal dysplasia
• Progressive external ophthalmoplegia
• Progressive hearing loss stapes fixation
• Progressive kinking of the hair, acquired
• Progressive multifocal leukoencephalopathy
• Progressive myositis ossificans
• Progressive osseous heteroplasia
• Progressive spinal muscular atrophy
• Progressive supranuclear palsy atypical
• Progressive supranuclear palsy
• Progressive systemic sclerosis

Prol–Prou

• Prolactinoma, familial
• Proliferating trichilemmal cyst
• Prolidase deficiency
• Prolymphocytic leukemia
• Properdin deficiency
• Prosencephaly cerebellar dysgenesis
• Prosopamnesia
• Prostaglandin antenatal infection
• Prostate cancer, familial
• Prostatic malacoplakia associated with prostatic abscess
• Prostatitis
• Protein C deficiency
• Protein–energy malnutrition
• Protein R deficiency
• Protein S acquired deficiency
• Protein S deficiency
• Proteus like syndrome mental retardation eye defect
• Proteus syndrome
• Prothrombin deficiency
• Protoporphyria, erythropoietic
• Protoporphyria
• Proud–Levine–Carpenter syndrome

Prox

• Proximal myotonic dystrophy
• Proximal myotonic myopathy
• Proximal spinal muscular atrophy
• Proximal tubulopathy diabetes mellitus cerebellar ataxia

Pru

• Prune belly syndrome
• Prurigo nodularis

Ps

Pse

Psel

• Psellismophobia

Pseu

Pseud

Pseudo

Pseudoa–Pseudom

• Pseudoachondroplasia
• Pseudoachondroplastic dysplasia 1
• Pseudoachondroplastic dysplasia
• Pseudoadrenoleukodystrophy
• Pseudoaminopterin syndrome
• Pseudoarylsulfatase A deficiency
• Pseudocholinesterase deficiency
• Pseudo-Gaucher disease
• Pseudogout
• Pseudohermaphrodism anorectal anomalies; see Anorectal malformation
• Pseudohermaphroditism female skeletal anomalies
• Pseudohermaphroditism male with gynecomastia
• Pseudohermaphroditism mental retardation
• Pseudohermaphroditism
• Pseudohypoaldosteronism type 1
• Pseudohypoaldosteronism type 2
• Pseudohypoaldosteronism
• Pseudohypoparathyroidism
• Pseudomarfanism
• Pseudomonas infection
  • Pseudomonas aeruginosa infection
  • Pseudomonas oryzihabitans infection
  • Pseudomonas stutzeri infection
• Pseudomongolism
• Pseudomyxoma peritonei

Pseudoo–Pseudo-Z

• Pseudoobstruction idiopathic intestinal
• Pseudopapilledema
• Pseudopapilledema blepharophimosis hand anomalies
• Pseudopelade of Brocq
• Pseudopolycythaemia
• Pseudoprogeria syndrome
• Pseudo-torch syndrome
• Pseudotumor cerebri
• Pseudo-Turner syndrome
• Pseudovaginal perineoscrotal hypospadias
• Pseudoxanthoma elasticum, dominant form
• Pseudoxanthoma elasticum, recessive form
• Pseudoxanthoma elasticum
• Pseudo-Zellweger syndrome

Psi–Psy

• Psittacosis
• Psoriasis
• Psoriatic arthritis
• Psoriatic rheumatism
• Psychogenic polydipsia
• Psychophysiologic disorders
• Psychosis

Pt

• Pterygia mental retardation facial dysmorphism
• Pterygium colli
• Pterygium colli mental retardation digital anomalies
• Pterygium of the eye
• Pterygium syndrome antecubital
• Pterygium syndrome multiple dominant type
• Pterygium syndrome X linked
• Pterygium syndrome, multiple
• Ptosis
• Ptosis coloboma mental retardation
• Ptosis coloboma trigonocephaly
• Ptosis strabismus diastasis
• Ptosis strabismus ectopic pupils

Pu

Pub

• Pubic lice
• Puerperal fever

Pul

Pulm

Pulmo

Pulmon

• Pulmonar arterioveinous aneurysm
• Pulmonary agenesis
• Pulmonary alveolar proteinosis, congenital
• Pulmonary alveolar proteinosis
• Pulmonary arterio-veinous fistula
• Pulmonary artery agenesis
• Pulmonary artery coming from the aorta
• Pulmonary artery familial dilatation
• Pulmonary atresia with ventricular septal defect
• Pulmonary blastoma
• Pulmonary branches stenosis
• Pulmonary cystic lymphangiectasis
• Pulmonary disease, chronic obstructive
• Pulmonary edema of mountaineers
• Pulmonary fibrosis /granuloma
• Pulmonary hypertension, secondary
• Pulmonary hypertension
• Pulmonary hypoplasia familial primary
• Pulmonary sequestration
• Pulmonary supravalvular stenosis
• Pulmonary surfactant protein B, deficiency of
• Pulmonary valve stenosis
• Pulmonary valves agenesis
• Pulmonary veins stenosis
• Pulmonary veno-occlusive disease
• Pulmonary venous return anomaly
• Pulmonaryatresia intact ventricular septum
• Pulmonic stenosis with Café au lait spot

Pun–Pur

• Punctate acrokeratoderma freckle like pigmentation
• Punctate inner choroidopathy
• Pure red cell aplasia
• Puretic syndrome
• Purine nucleoside phosphorylase deficiency
• Purpura, Schönlein–Henoch
• Purpura, thrombotic thrombocytopenic
• Purpura
• Purtilo syndrome

Py

• Pyaemia
• Pycnodysostosis
• Pyknoachondrogenesis
• Pyle disease
• Pyelonephritis
• Pyoderma gangrenosum
• Pyomyositis
• Pyridoxine deficit
• Pyrimidinemia familial
• Pyrophobia
• Pyropoikilocytosis
• Pyrosis
• Pyruvate carboxylase deficiency
• Pyruvate decarboxylase deficiency
• Pyruvate dehydrogenase deficiency
• Pyruvate kinase deficiency, liver type
• Pyruvate kinase deficiency, muscle type
• Pyruvate kinase deficiency

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2. List of infectious diseases
3. List of diseases (Q)
4. List of dog diseases
5. List of diseases (Z)
6. List of diseases (A)
7. List of diseases (Y)
8. List of diseases (J)
9. List of abbreviations for diseases and disorders
10. List of diseases (C)
11. List of diseases (B)
12. List of diseases (H)
13. List of diseases (S)
14. List of diseases (V)
15. List of diseases (D)
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17. List of diseases (X)
18. List of diseases (M)
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