Encyclopedia Home >Diseases & Conditions (A-Z)
Salivary duct stonesSmall intestine insufficiency
Salivary gland disordersSmall non-cleaved cell lymphoma
Salivary gland infectionsSmallpox
Salivary gland tumorsSmoker's keratosis
Salmon patchSocial phobia
Salmonella enterocolitisSociopathic personality
SalmonellosisSodoku
SalpingitisSoft tissue gangrene
Salpingo-oophoritisSoft tissue sarcoma
Salpingo-peritonitisSoiling
San Joaquin Valley feverSolar keratosis
Sanfilippo syndromeSolitary pulmonary nodule
SarcoidosisSomatization disorder
Sarcoidosis - nervous systemSomatoform pain disorder
Sarcoma botryoidesSomatotroph adenoma
Sarcoptes scabieiSomnambulism
SARSSpasm of the esophagus
ScabiesSpasmodic bladder
Scalded skin syndromeSpasmodic croup
Scar - hypertrophicSpasmodic dysphonia
ScarlatinaSpasmus nutans
Scarlet feverSpastic colon
SCDSpastic paralysis
SCFESpeech disorders
Schatzki's ringSpell - newborns
Scheie syndromeSpermatocele
Scheuermann's diseaseSpherocytosis
SchistosomiasisSphingomyelinase deficiency
Schizoaffective disorderSpider angioma
Schizoid personality disorderSpielmeyer-Vogt
SchizophreniaSpina bifida
Schizophrenia - disorganized typeSpinal abscess
Schizophrenia - paranoid typeSpinal cord abscess
Schizotypal personality disorderSpinal cord injury
Sciatic nerve dysfunctionSpinal cord trauma
SciaticaSpinal curvature
SCLCSpinal muscular atrophy
ScleritisSpinal stenosis
SclerodermaSpinal tumor
ScleromaSpinocerebellar degeneration
Sclerosing cholangitisSpirillary fever
ScoliosisSplenectomy - post-surgery syndrome
ScorbutusSplenic infarction
ScrofulaSplenomegalic polycythemia
Scrotal massesSpondylarthropathy
Scrotum - empty (anorchia)Spondylitis
Scrotum - empty (undescended testes)Spondylolisthesis
ScurvySpongy degeneration of the brain
Seasonal affective disorderSpontaneous abortion
SeatwormSpontaneous bacterial peritonitis (SBP)
Sebaceous cystSpontaneous pneumothorax
Seborrheic dermatitisSporadic primary pulmonary hypertension
Seborrheic eczemaSporotrichosis
Seborrheic keratosisSpotted fever
Second cranial nerve atrophySprue
Secondary amenorrheaSquamous cell cancer - mouth
Secondary aplastic anemiaSquamous cell cancer - penis
Secondary cardiac amyloidosis - AA typeSquamous cell skin cancer
Secondary hyperparathyroidismSquint
Secondary hypogonadismSSPE
Secondary parkinsonismSt. Vitus dance
Secondary peritonitisStable angina
Secondary pulmonary hypertensionStage 1 Lyme disease
Secondary syphilisStage 2 Lyme disease
Secondary systemic amyloidosisStage 3 Lyme disease
Secretory otitis mediaStagnant loop syndrome
Segmental glomerulosclerosisStaph aureus food poisoning
Seizure - absenceStaph skin infection
Seizure - fever inducedStaphylococcal meningitis
Seizure - generalizedStaphylococcal scalded skin syndrome (SSS)
Seizure - grand malStaphylococcal toxic shock syndrome
Seizure - partial (focal)Stasis dermatitis and ulcers
Seizure - petit malStasis syndrome
Seizure - temporal lobeSteely hair disease
Seizure - tonic-clonicStein-Leventhal syndrome
Seizure disorderStenosis - renal artery
Selective deficiency of IgAStereotypic movement disorder
Selective mutismSterile meningitis
Semantic dementiaStevens-Johnson syndrome
SeminomaStiff heart syndrome
Senile amyloidosisStiff lung
Senile angiomaStill's disease
Senile cerebral amyloid angiopathyStill's disease - adult
Senile dementia/Alzheimer's type (SDAT)Stomach cancer
Senile keratosisStomach flu 
Senile macular degeneration (SMD)Stomach ulcer
Senile or solar lentiginesStomatitis - herpetic
Senior-Loken syndromeStomatitis - ulcerative
Sensorimotor polyneuropathyStones - bladder
Separation anxiety Stones - cystine
SepsisStones - kidney
Sepsis neonatorumStorage pool disease
Sepsis of the newbornStork bite
Septal hematomaStrabismus
Septic arthritisStrawberry mark
Septic shockStrawberry nevus
SepticemiaStreeter's dysplasia
Septicemic plagueStrep throat
Septicemic shockStreptobacillary fever
Serotonergic syndromeStreptobacillosis
Serotonin syndromeStreptococcal pharyngitis
Serous labyrinthitisStreptococcal proctitis
Serous otitis mediaStreptococcus agalactiae
Sertoli-Leydig cell tumorStress gastritis
Serum sicknessStress incontinence
Seventh cranial nerve palsyStress ulcer
Seventh cranial nerve palsy due to birth traumaStroke
Severe acute respiratory syndrome (SARS)Stroke - hemorrhagic
Sex - delayed ejaculationStroke - ischemic
Sex cord tumorStroke related to cocaine use
Sexual abuse - childrenStroke secondary to atherosclerosis
Sexual apathyStroke secondary to atrial fibrillation
Sexual aversionStroke secondary to cardiogenic embolism
Shaking palsyStroke secondary to carotid dissection
Sheehan syndromeStroke secondary to carotid stenosis
Shigella enteritisStroke secondary to FMD
Shigella gastroenteritisStroke secondary to syphilis
ShigellosisStromal tumor
ShinglesStrongyloidiasis
Shock - anaphylacticStruma lymphomatosa
Shock - cardiogenicStuart-Prower deficiency
Shock - hypovolemicSturge-Weber syndrome
Shock liverStuttering
Shock lungStuttgart disease
Short bowel syndromeStye
ShortsightednessSubacute combined degeneration
Shoulder impingement syndromeSubacute combined degeneration of the spinal cord
Shy-Drager syndromeSubacute lymphocytic thyroiditis
Shy-McGee-Drager syndromeSubacute sclerosing leukoencephalitis
SialadenitisSubacute sclerosing panencephalitis
SialolithiasisSubacute thyroiditis
Sick sinus syndromeSubarachnoid hemorrhage
Sickle cell anemiaSubareolar abscess
Sickle cell diseaseSubclavian artery occlusive syndrome
Sideropenic dysphagiaSubclavian steal syndrome
SIDSSubconjunctival hemorrhage
Silent ear infectionSubcutaneous abscess
Silent otitis mediaSubdural effusion
SilicoproteinosisSubdural hematoma
Silicosis Subdural hematoma - chronic
Silicosis - acuteSubdural hemorrhage
Silver syndromeSubdural hemorrhage - chronic
Silver-Russell syndromeSubfalcine herniation
Simple pulmonary eosinophiliaSublingual space infection
Simple seizureSubmandibular space infection
Singapore hemorrhagic feverSubsternal thyroid
Sinus infectionSubungual warts
Sinus node dysfunctionSudden infant death syndrome
SinusitisSuicide and suicidal behavior
Sinusitis - acuteSun-induced skin changes - keratosis
Sinusitis - chronicSun-induced skin changes - liver spots
SiphonapteraSuperficial thrombophlebitis
Sipple's syndromeSuperior vena cava obstruction
Sjogren syndromeSuperior vena cava syndrome
Skin abscessSupraglottitis
Skin cancerSupranuclear ophthalmoplegia
Skin cancer - basal cellSupraventricular tachycardia
Skin cancer - melanomaSVC obstruction
Skin cancer - squamous cellSwamp fever
Skin growths - fattySweating - excessive
Skin infection - bacterialSwimmer's ear
Skin infection - fungalSwimmer's ear - chronic
Skin infection - staphylococcalSwimmer's itch
Skin infection - yeastSwimmer's shoulder
Skin lesion of blastomycosisSwimming pool granuloma
Skin lesion of coccidioidomycosisSwineherd's disease
Skin lesion of histoplasmosisSydenham chorea
Skin spots - agingSympathomimetic intoxication
Skin tagsSyndrome X
Slapped cheekSynovitis - toxic
SLESyphilis
Sleep - natural short sleeperSyphilis - primary
Sleep apneaSyphilis - secondary
Sleep apnea - centralSyphilis - tertiary
Sleep disordersSyphilitic aneurysm
Sleep disorders in the elderlySyphilitic aseptic meningitis
Sleep paralysis - isolatedSyphilitic myelopathy
Sleep terror disorderSyphilitic stroke
Sleep walkingSyringomyelia
Sleep-wake syndrome - irregularSyrinx
Sleeping sicknessSystemic histoplasmosis
SlipSystemic inflammatory response syndrome (SIRS)
Slipped capital femoral epiphysisSystemic lupus erythematosus
Slipped diskSystemic sclerosis
Small bowel bacterial overgrowthSystolic click-murmur syndrome
Small cell lung cancer 
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