Conditions A–Z
Plain-language reference entries for diseases, symptoms and tests.
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- P.A.M.
- PA
- PABA
- PAD
- PBC
- PBG
- PCH
- PCL injury
- PCP
- PCP abuse
- PCP overdose
- PDA
- PDA ligation
- PEG tube insertion
- PET scan
- PFO
- PFTs
- PHB
- PID
- PK
- PKU
- PMDD
- PML
- PMS
- PNH
- PO4
- PPD skin test
- PRA
- PRL
- PSA
- PSVT
- PT
- PTH
- PTH-related protein
- PTHrp
- PTSD
- PTT
- PVB (premature ventricular beat)
- PVC (premature ventricular contraction)
- PVD
- Pacemaker
- Pacemaker
- Paget's Disease of Bone
- Paget's disease
- Pain - abdomen
- Pain - abdomen
- Pain - ankle
- Pain - bones
- Pain - ear
- Pain - elbow
- Pain - eye
- Pain - finger(s)
- Pain - foot
- Pain - groin
- Pain - head
- Pain - heel
- Pain - hip
- Pain - joints
- Pain - knee
- Pain - leg
- Pain - muscles
- Pain - neck
- Pain - passing stool
- Pain - penis
- Pain - rib cage
- Pain - shins
- Pain - shoulder
- Pain - side
- Pain - swallowing (burning)
- Pain - testicle(s)
- Pain - throat
- Pain - tooth or teeth
- Pain - wrist
- Pain medications
- Pain relief by acupuncture
- Painful Sexual Intercourse (Dyspareunia)
- Painful menstrual periods
- Painful menstrual periods - adolescent
- Painful sexual intercourse
- Painful stools
- Painful urination
- Painless (silent) thyroiditis
- Paint remover
- Painted leaf
- Paints - emulsion type
- Paints - lacquer and varnish removers
- Paints - oil type
- Palatal myoclonus
- Paleness
- Pallor
- Palpation
- Palpebral slant - eye
- Palpitations
- Palsy - progressive supranuclear
- Pancreas divisum
- Pancreas transplant
- Pancreatic Cancer
- Pancreatic abscess
- Pancreatic cancer
- Pancreatic carcinoma
- Pancreatic endocrine tumor
- Pancreatic function test
- Pancreatic islet cell tumor
- Pancreatic pseudocyst
- Pancreatitis
- Panhypopituitarism
- Panic Disorder
- Panic attacks
- Panic disorder
- Panic disorder with agoraphobia
- Pantothenic acid and biotin
- Pap smear
- Pap smear and treatment
- Papanicolaou test
- Papillary carcinoma of the thyroid
- Papular acrodermatitis of childhood
- Papule
- Papulovesicular acro-located syndrome
- Para-aminobenzoic acid overdose
- Paracentesis
- Paracetamol overdose
- Paradichlorobenzene
- Paraffin
- Parahemophilia
- Parainfluenza
- Paralysis
- Paralysis agitans
- Paralysis of the face
- Paralytic ileus
- Paramyotonia congenita
- Paranasal sinus radiography
- Paranoid personality disorder
- Paranoid schizophrenia
- Paraphimosis
- Parapneumonic pulmonary effusion
- Paraquat lung
- Parasites and stool ova exam
- Parathormone (PTH) intact molecule
- Parathyroid Cancer
- Parathyroid adenoma
- Parathyroid biopsy
- Parathyroid gland removal
- Parathyroid hormone
- Parathyroid hyperplasia
- Parathyroid-related hypercalcemia
- Parathyroidectomy
- Paresthesias
- Parinaud's syndrome
- Parkinson's Disease
- Parkinson's disease
- Parkinson's plus syndrome
- Parkinsonism - secondary
- Paronychia
- Parotitis
- Paroxysmal cold hemoglobinuria (PCH)
- Paroxysmal nocturnal dyspnea
- Paroxysmal nocturnal hemoglobinuria (PNH)
- Paroxysmal supraventricular tachycardia (PSVT)
- Pars planitis
- Partial (focal) seizure
- Partial Seizures (Focal Seizures)
- Partial androgen insensitivity syndrome
- Partial complex seizure
- Partial elbow dislocation
- Partial lung collapse
- Partial thromboplastin time (PTT)
- Partial thyroidectomy
- Partial vegetarian
- Parvovirus B19
- Passed out
- Passive-aggressive personality disorder
- Patau syndrome
- Patch tests - allergy
- Patches
- Patellar debridement
- Patellar dislocation or instability
- Patellofemoral syndrome
- Patent ductus arteriosus
- Patent ductus arteriosus ligation
- Patent foramen ovale
- Patent processus vaginalis
- Patent urachus repair
- Paterson-Kelly syndrome
- Pathological gambling
- Paul-Bunnell test
- Pavement
- Pavor nocturnus
- Peak expiratory flow rate
- Peak flow
- Pectus carinatum
- Pectus excavatum
- Pectus excavatum repair
- Pedia-Profen overdose
- Pediatric asthma
- Pedicle
- Pediculosis - pubic lice
- Pediculosis capitis - head lice
- Peduncle
- Peg teeth
- Pellagra
- Pelvic Inflammatory Disease (PID)
- Pelvic adhesion
- Pelvic floor exercises (PFEs)
- Pelvic floor hernia
- Pelvic inflammatory disease (PID)
- Pelvic laparoscopy
- Pelvic muscle strengthening exercises
- Pelvic pain syndrome
- Pelvic relaxation
- Pelvis X-ray
- Pemphigus vulgaris
- Pen ink
- Pencil erasers
- Pencil lead
- Penetrating keratoplasty
- Penile cancer
- Penile warts
- Penis
- Penis care (uncircumcised)
- Penis pain
- Pentafen overdose
- Pentazocine overdose
- Pepcid
- Peppermint oil overdose
- Peptic disease
- Peptic esophagitis
- Peptic ulcer
- Pepto-Bismol
- Percocet overdose
- Percodan overdose
- Percussion
- Percutaneous lithotripsy
- Percutaneous needle aspiration
- Percutaneous pericardiocentesis
- Percutaneous transhepatic cholangiogram (PTCA)
- Percutaneous transluminal coronary angioplasty
- Perforated Eardrum
- Perforation of the esophagus
- Perforation of the intestines
- Perfume
- Periactin overdose
- Perianal streptococcal cellulitis
- Periapical abscess
- Periarteritis nodosa
- Pericardial fluid Gram stain
- Pericardial fluid culture
- Pericardial tamponade
- Pericardial tap
- Pericardiocentesis
- Pericarditis
- Pericarditis
- Pericarditis - after heart attack
- Pericarditis - bacterial
- Pericarditis - constrictive
- Perichondritis
- Perimenopause
- Perimetry
- Perineal anoplasty
- Perineal pain
- Periodic paralysis - hyperkalemic
- Periodic paralysis - hypokalemic
- Periodic paralysis - thyrotoxic
- Periodic paralysis with hypokalemia
- Periodontitis
- Periods - heavy, prolonged, or irregular
- Periods - missed
- Periods - painful
- Periods - painful (adolescent)
- Perioral dermatitis
- Periorbital cellulitis
- Periosteum
- Peripartum cardiomyopathy
- Peripheral
- Peripheral Vascular Disease
- Peripheral arterial disease
- Peripheral edema
- Peripheral neuritis
- Peripheral neuropathy
- Peripheral smear
- Peripheral vascular disease
- Perirenal abscess
- Peristalsis
- Peritoneal Dialysis - diet
- Peritoneal dialysis
- Peritoneal fluid analysis
- Peritoneal fluid culture
- Peritoneal tap
- Peritonitis
- Peritonitis - dialysis associated
- Peritonitis - secondary
- Peritonitis - spontaneous
- Peritonsillar Abscess
- Peritonsillar abscess
- Peritonsillar abscess
- Periungual warts
- Permanent pacemaker
- Pernicious anemia
- Peroneal nerve injury
- Peroneal nerve palsy
- Personality disorder - antisocial
- Personality disorder - avoidant
- Personality disorder - borderline
- Personality disorder - dependent
- Personality disorder - obsessive-compulsive
- Personality disorder - paranoid
- Personality disorder - passive-aggressive
- Personality disorder - schizoid
- Personality disorders
- Perspiration - excessive
- Perthes disease
- Pertussis
- Pertussis - vaccine
- Pervasive developmental delay
- Pervasive developmental disorder
- Pes cavus
- Pes planovalgus
- Pes planus
- Pesticides
- Pesticides and food
- Pesticides on fruits and vegetables
- Pet allergies
- Petechiae
- Petit mal seizure
- Petroleum jelly overdose
- Petrositis
- Pets and the immunocompromised person
- Peutz-Jeghers syndrome
- Peyronie's Disease (Curvature Of The Penis)
- Peyronie's disease
- Pharyngitis
- Pharyngitis - gonococcal
- Pharyngitis - streptococcal
- Pharyngitis - viral
- Pharyngomaxillary space abscess
- Phenacetin nephritis
- Phencyclidine overdose
- Phenergan
- Phenindamine overdose
- Pheniramine overdose
- Phenobarbital - serum
- Phenobarbital overdose
- Phenol
- Phenothiazine overdose
- Phenylalanine
- Phenylalanine - serum
- Phenylbutazone overdose
- Phenylketonuria
- Phenylketonuria (PKU)
- Phenytoin overdose
- Pheochromocytoma
- Philippine hemorrhagic fever
- Philodendron
- Phlebitis
- Phlebography
- Phlebotomy
- Phlegmasia cerulea dolens
- Phobia - simple/specific
- Phobia - social
- Phonological disorder
- Phosphate - low
- Phosphorus - serum
- Phosphorus in diet
- Photographic developers
- Photographic fixative
- Photophobia
- Physical activity
- Physical exam frequency
- Physical examination
- Physician Assistant profession (PA)
- Physicians and nuses - different types
- Physiologic ovarian cysts
- Pica
- Pick's disease
- Pickwickian syndrome
- Pierre Robin syndrome
- Pigeon breast
- Pigion Berry
- Piles
- Pilonidal dimple
- Pimples
- Pin back otoplasty
- Pine oil
- Pinguecula
- Pink eye
- Pinkeye (Conjunctivitis)
- Pinna abnormalities and low-set ears
- Pinworm test
- Pinworms
- Pipe smoking
- Piperonyl butoxide with pyrethrins
- Piroxicam overdose
- Pitcher's shoulder
- Pituitary Cushing's (Cushing's disease)
- Pituitary Tumors
- Pituitary apoplexy
- Pituitary dwarfism
- Pituitary hypothyroidism
- Pituitary infarction
- Pituitary insufficiency
- Pituitary tumor
- Pityriasis alba
- Pityriasis rosea
- Pityriasis rubra
- Pityriasis rubra pilaris
- Pityriasis versicolor
- Placenta abruptio
- Placenta previa
- Placental abruption
- Placental abruption
- Placental dysfunction
- Placental insufficiency
- Plague
- Plague (Yersinia Pestis)
- Plain films
- Plane juvenile warts
- Planigraphy
- Plantar Fasciitis
- Plantar fasciitis
- Plantar warts
- Plaque Psoriasis
- Plaque and tartar on teeth
- Plaque buildup - arteries
- Plaque psoriasis
- Plasma amino acids
- Plasma cell dyscrasia
- Plasma cell myeloma
- Plasma factor VIII antigen
- Plasma fibrinogen
- Plasma renin activity
- Plasmacytoma of bone
- Plastic casting resin
- Plastic resin hardener
- Platelet aggregation test
- Platelet associated antibodies
- Platelet count
- Plethysmography
- Pleural effusion
- Pleural fluid
- Pleural fluid analysis
- Pleural fluid aspiration
- Pleural fluid culture
- Pleural fluid cytology
- Pleural fluid gram stain
- Pleural fluid smear
- Pleural needle biopsy
- Pleural tap
- Pleurisy
- Pleurisy
- Pleuritic chest pain
- Pleuritis
- Plica palpebronasalis
- Plumbism
- Plummer's disease
- Plummer-Vinson syndrome/esophageal web
- Pneumococcal meningitis
- Pneumococcal polysaccharide vaccine
- Pneumoconiosis
- Pneumocystis carinii pneumonia
- Pneumocystis jiroveci
- Pneumocystosis
- Pneumomediastinum
- Pneumonectomy
- Pneumonectomy
- Pneumonia
- Pneumonia
- Pneumonia - cytomegalovirus
- Pneumonia - viral
- Pneumonia in immunocompromised host
- Pneumonia in immunodeficient patient
- Pneumothorax
- Pneumothorax
- Pneumothorax - tension
- Poinsettia
- Point tenderness
- Poison Control Centers - Emergency Number
- Poison Control Centers for Alabama - Hawaii
- Poison Control Centers for Idaho - Montana
- Poison Control Centers for Nebraska - Pennsylvania
- Poison Control Centers for Rhode Island - Wyoming
- Poison ivy
- Poison ivy - oak - sumac
- Poison ivy - oak - sumac rash
- Poison ivy itchiness
- Poison oak
- Poison sumac
- Poisoning first aid
- Pokeberry
- Pokeweed
- Polio
- Polio immunization (vaccine)
- Poliomyelitis
- Poliomyelitis
- Polishes and waxes
- Poly-D
- Poly-Histine
- Polyarteritis nodosa
- Polychromatophilia
- Polycystic kidney disease
- Polycystic ovarian syndrome (PCOS)
- Polycystic ovaries
- Polycystic ovary disease
- Polycythemia rubra vera
- Polycythemia vera
- Polycythemia with chronic cyanosis - Myelopathic polycythemia
- Polydactyly
- Polydipsia
- Polyfollicular ovarian disease
- Polyhydramnios
- Polymastia
- Polymorphic light eruption
- Polymyalgia Rheumatica
- Polymyalgia rheumatica
- Polymyositis - adult
- Polyneuropathy - chronic inflammatory
- Polyneuropathy - sensorimotor
- Polyostotic fibrous dysplasia
- Polyphagia
- Polyps - colorectal
- Polysomnogram
- Polysomnography
- Polysyndactyly
- Polythelia
- Polyunsaturated fat
- Polyuria
- Pompholyx
- Pontiac fever
- Poor feeding in infants
- Poor skin turgor
- Porphyria
- Porphyria (1)
- Porphyria - hepatic
- Porphyrins - blood
- Porphyrins - total
- Porphyrins - urine
- Porpoxyphene hydrochloride
- Port-wine stain
- Portacaval shunt
- Post surgical pain treatment
- Post-MI pericarditis
- Post-Polio Syndrome
- Post-cardiac defibrillation
- Post-cardiac injury syndrome
- Post-infectious glomerulonephritis
- Post-partum depression
- Post-splenectomy syndrome
- Post-streptococcal GN
- Post-traumatic Stress Disorder
- Postcardiotomy pericarditis
- Posterior Cruciate Ligament (PCL) Injuries
- Posterior circulation ischemia
- Posterior cruciate ligament (PCL) injury
- Posterior fossa tumor
- Posterior spinal fusion
- Posterior tongue carcinoma
- Posterior uveitis
- Postherpetic neuralgia
- Postmenopause
- Postnasal drip
- Postpartum Depression
- Postpartum hypopituitarism
- Postpartum pituitary insufficiency
- Postural kyphosis
- Potassium - high
- Potassium - low
- Potassium - urine
- Potassium carbonate
- Potassium hydroxide
- Potassium hydroxide examination of skin lesion
- Potassium in diet
- Potassium test
- Potato - green tubers and sprouts
- Potbellies and toddlers
- Potter syndrome
- Power of attorney
- Prader-Willi syndrome
- Preauricular tag or pit
- Precancerous changes of the cervix
- Precocious puberty
- Preeclampsia
- Preeclampsia And Eclampsia
- Preemie
- Preexcitation syndrome
- Pregnancy - identifying fertile days
- Pregnancy - teenage
- Pregnancy - vaginal bleeding
- Pregnancy -- health risks
- Pregnancy care
- Pregnancy mask
- Pregnancy sonogram
- Pregnancy test
- Pregnancy ultrasound
- Pregnancy-induced hypertension
- Pregnanediol
- Pregnant - first trimester
- Premature Ejaculation
- Premature Ejaculation
- Premature beats
- Premature closure of sutures
- Premature contraction
- Premature infant
- Premature ovarian failure
- Premature separation of placenta
- Premenstrual dysphoric disorder
- Premenstrual syndrome
- Premenstrual tenderness and swelling of the breasts
- Prenatal diagnosis
- Preparing adolescent for test/procedure
- Preparing infant for test/procedure
- Preparing preschoolers for test/procedure
- Preparing school age children for test/procedure
- Preparing toddler for test/procedure
- Prerenal azotemia
- Prerenal azotemia
- Presbycusis
- Presbyopia
- Presbyopia
- Preschooler development
- Preschooler test or procedure preparation
- Prescriptions - how to fill
- Preseptal cellulitis
- Pressure sore
- Pressure ulcer (bedsore)
- Preterm infant
- Prevention of birth defects with folic acid
- Prevention of jet lag
- Preventive health care
- Priapism
- Primary HIV infection
- Primary Insomnia
- Primary alveolar hypoventilation
- Primary amenorrhea
- Primary amyloidosis
- Primary biliary cirrhosis
- Primary brain tumor
- Primary care provider - how to choose one
- Primary hyperparathyroidism
- Primary hypogonadism - male
- Primary lymphoma of the brain
- Primary myelofibrosis
- Primary or idiopathic intestinal pseudo-obstruction
- Primary or secondary fibrinolysis
- Primary polycythemia
- Primary pulmonary hypertension
- Primary sclerosing cholangitis
- Primary syphilis
- Primary thrombocythemia
- Primidone - serum
- Primitive Neuroectodermal Tumors (PNET)
- Primitive reflexes
- Pro-time
- Probate
- Processus vaginalis
- Prochlorperazine
- Prochlorperazine overdose
- Proctitis
- Proctitis - streptococcal
- Proctocolectomy
- Proctoscopy
- Proctosigmoidoscopy
- Progeria
- Progesterone - 17-OH
- Progesterone - serum
- Prognathism
- Progressive angina
- Progressive massive fibrosis
- Progressive multifocal leukoencephalopathy
- Progressive neuropathic (peroneal) muscular atrophy
- Progressive supranuclear palsy
- Progressive systemic sclerosis
- Prolactin
- Prolactinoma
- Prolactinoma - females
- Prolactinoma - males
- Proliferation
- Promethazine overdose
- Pronation of feet
- Propane
- Prophamine overdose
- Prophylactics - male
- Propoxyphene overdose
- Proptosis
- Propyl alcohol
- Prostate Cancer
- Prostate cancer
- Prostate cancer - genetic and other markers
- Prostate removal
- Prostate-specific antigen
- Prostatectomy
- Prostatic acid phosphatase (PAP)
- Prostatic acid phosphatase test
- Prostatism
- Prostatitis - acute
- Prostatitis - chronic
- Prostatitis - nonbacterial
- Prostatodynia
- Prosthesis
- Protein - urine
- Protein C
- Protein S
- Protein electrophoresis - serum
- Protein electrophoresis - urine
- Protein in diet
- Protein malnutrition
- Protein-calorie malnutrition
- Protein-losing enteropathy
- Proteinuria
- Prothrombin
- Prothrombin deficiency
- Prothrombin time (PT)
- Protoporphyrin levels
- Protuberance
- Proximal
- Proximal renal tubular acidosis
- Prune belly syndrome
- Pruritus
- Pruritus vulvae
- Pseudo-ainhum
- Pseudo-hermaphroditism
- Pseudocholinesterase
- Pseudogout
- Pseudogout (CPPD)
- Pseudohypertrophic muscular dystrophy
- Pseudohypoparathyroidism
- Pseudomembranous colitis
- Pseudomenses
- Pseudotumor cerebri
- Psittacosis
- Psoriasis
- Psoriasis - guttate
- Psoriatic arthritis
- Psychomotor retardation
- Psychopathic personality
- Psychosis
- Psychotic
- Psychotic depression
- Pteroylglutamic acid
- Pterygium
- Ptosis
- Ptyalography
- Pubertas praecox
- Puberty and adolescence
- Puberty and adolescence
- Pubic Lice Or Crab Lice
- Pubic lice
- Puffy face
- Pulled elbow
- Pulled elbow
- Pulled muscle
- Pulmonary actinomycosis
- Pulmonary alveolar proteinosis
- Pulmonary angiography
- Pulmonary arterial hypertension
- Pulmonary arteriography
- Pulmonary arteriovenous fistula
- Pulmonary aspergilloma (mycetoma)
- Pulmonary aspergillosis - allergic bronchopulmonary type
- Pulmonary aspergillosis - invasive type
- Pulmonary aspergillosis - invasive type
- Pulmonary atresia
- Pulmonary edema
- Pulmonary embolus
- Pulmonary fibrosis
- Pulmonary fibrosis - from asbestos exposure
- Pulmonary function tests
- Pulmonary histiocytosis X
- Pulmonary infiltrates with eosinophilia
- Pulmonary langerhans cell granulomatosis
- Pulmonary nocardiosis
- Pulmonary renal syndrome
- Pulmonary tuberculosis
- Pulmonary valve stenosis
- Pulmonary vaso-occlusive disease
- Pulmonary veno-occlusive disease
- Pulmonary ventilation/perfusion scan
- Pulse
- Pulse - bounding
- Pulse - weak or absent
- Pulse - weak or absent
- Pulseless disease
- Punishment
- Pupil - white spots
- Pupils of different size
- Purgoxin
- Purified protein derivative standard
- Purpura
- Purulent pericarditis
- Pustules
- Pyelonephritis
- Pyelonephritis
- Pyelonephritis
- Pyloric stenosis
- Pyloric stenosis repair
- Pyloromyotomy
- Pyloroplasty
- Pyogenic granuloma
- Pyogenic liver abscess
- Pyorrhea - gum disease
- Pyrethrins
- Pyrexia
- Pyridoxine
- Pyrosis
- Pyruvate kinase
- Pyruvate kinase deficiency
- pH - urine
- pH monitoring - esophageal