Differential Diagnoses

General Symptoms:
Weight Loss
n Causes may be GI, endocrine, chronic infections, malignancies, depression anorexia nervosa
n Wt loss with high food intake: diabetes, hyperthyroidism, malabsorption or bulimia
Strength
n Fatigue = sense of weariness or loss of energy
Some causes: depression, anxiety, endocrine, infections (mono), anemia
n Weakness = loss of muscular power
n Fever = abnormal increase in body temp
Shaking chills-body shivers, teeth chatter
Menopause = heat and sweating
Head
n Headache = most important attribute is chronological pattern
Acute/Chronic/Progressive
Most common recurring headache = tension + migraine
Changing/progressively severe– tumor
Extremely severe– arachnoid hemorrhage or meningitis
Nausea and vomiting– migraine, brain tumors, subarachnoid
hemorrhage
Eyes
n Blurring — high blood sugars
n Sudden/gradual? Sudden– retinal detachment, vitreous hemorrhage
or occlusion of central retinal artery
n Difficulty with close/far? Close– hyperopia (farsightedness)
presbyopia (aging vision), or Far — myopia (nearsightedness)
n Visual field defect: partial/central/periphal/one side?
Slow central loss — nuclear cataract, macular degeneration
Peripheral loss — glaucoma
One-sided loss — hemianopsia and quadrantic defects
n Moving specks — vitreous floaters
n Flashing lights — vitreous detachment from retina
n Pain, redness of eyes, tearing – read up on this topic
n Diplopia (double vision): horizontal/vertical
Weakness/paralysis of extraocular muscles
Horizontal — CN III, VI
Vertical — CN III, IV
Ears
n Pattern of hearing loss – central or conductive etioloty
n Conductive/Sensorial loss?
Conductive-external or middle ear
Sensorial – inner ear ; Patient has trouble understanding speech
n Tinnitus = perceived sound w/o external stimulus; increase w/ age
n True vertigo = feels like being pulled
n Earache (Pain) — external or middle ear; or referred from mouth, throat Nose and Sinuses
n Rhinorrhea = nasal discharge; occurs with sneezing, watery eyes, itchiness of eyes, nose, throat — viral infections, allergic rhinitis
If with pain and face tenderness, headache, fever — Sinusitis
n Epistaxis = nose bleed — trauma, inflammation, drying
Mouth, Throat, Neck
n Bleeding gums — Gingivitis
n Hoarseness = husky, rough, harsh voice — overuse or infection
Chronic — smoking, allergy
Enlarged lymph nodes — Pharyngitis
n Enlarged thyroid (Goiter)
Breast
n Pain/Discomfort/Lumps?
Lumps — cysts, benign tumors, cancers
Differentiation of breast nodules (see focuses lecture notes)
n Nipple discharge?
Milky, bilateral — pregnancy, imbalance hormone
Non-milky, unilateral — local breast disease
Chest Pain
n Myocardium — MI, angina pectoris
n Aorta — Dissecting aneurysm
n Trachea/large bronchi — Tracheobronchitis
n Parietal pleura — Pleurisy, pericarditis
n Esophagus — Reflux esophagitis, spasm
n Chest wall (musculoskeletal + skin) — Costochondritis, herpes zoster
n Anxiety most common cause of chest pain in kids
n Ask patient to show and watch gestures:
Clenched fist over sternum — angina pectoris
Finger pointing to area of heart — noncardiac
Hand up and down epigastrium to neck — heartburn
n Palpitations = unpleasant awareness of heartbeat
Persistent irregularity — atrial fibrillation
n Selected heart rates and rhythms
Regular fast rate < 120/min — sinus tachycardia
n Dyspnea = nonpainful, uncomfortable awareness of breathing inappropriate to circumstances — can only be reported by patient
Patient description: shortness of breath, smothering, can’t take
deep breath, deep sighs
n Orthopnea = dyspnea when patient lying down, improves when sitting up
Quantified by number of pillows patient sleeps on or patient sleeps
sitting up — left ventricular failure, mitral stenosis, obstructive lung disease
n Paroxysmal noctural dyspnea = sudden dyspnea + orthopnea that waken patient 1-2 hrs. after going to bed — left ventricular failure, mitral stenosis, asthmatic attack
n Edema = excessive fluid in interstitial space — swelling from cardiovascular, rheumatologic, ir immunologic causes
Dependent edema = in lowest body part (feet, legs). Puffy lids and tight rings (if edema elsewhere ) — renal disease or hypoalbuminemia
Enlarged wasteline — ascites = fluid in peritoneal cavity
n Cough = reflex response to irritation of receptors in larynx, trachea
– left-sided heart failure
Sputum (phlegm) – volume, odor, color, consistency
Mucoid Sputum = translucent, white, gray
Purulent Sputum = yellow, green
Mucopurulent = combination
Helpful diagnostic symptoms: fever, chest pain, dyspnea,
orthopnea, wheezing
Hemoptysis = cough up blood– Cystic fibrosis
Blood in stomach darker than respiratory and mix with food (vomited, not coughed up)
GI Tract
n Dysphagia = difficulty swallowing
Point to chest — esophageal disorder
Point to throat — problem with food transfer or esophageal disorder
Only with solid food — esophageal narrowing
Solid + Liquid food — esophageal muscle disorder
n Odynophagia = pain with swallowing
Sharp, burning — mucosal inflammation — reflux esophagitis due to herpesvirus or Candida
Squeezing, cramping — muscular problem
n Indigestion = distress with eating
Heartburn = burning/warmth retrosternally and may radiate from
epigastrium to neck — reflux gastric acid to esophagus
–Heavy meal, lying down
Severe — heart disease
Chronic — reflux esophagitis
Excessive Gas = frequent belching, abdominal bloating, flatus
– foods, intestinal lactase deficiency, irritable bowel
syndrome
Abdominal Pain
–Visceral Pain = hollow organs distended or contract
forcefully
Poorly localized, near midline
Gnawing, burning, cramping, aching
–Parietal Pain = originate in parietal peritoneum due to
inflammation. Steady, aching pain-more severe
and localized than visceral pain — patient usually
lie still
*Acute Appendicitis = visceral + parietal pain
periumbilical pain — right lower quandrant pain
–Referred Pain = felt in distant sites but at same spinal
level of
innervation — Duodenal or pancreatic origin-> Back
pain from biliary tree -> right shoulder or right
posterior chest
n Appetite
Anorexia = loss of appetite
Nausea = sick to stomach
Retching = spasmodic movement of chest and diaphragm. Can lead to
Vomiting = forceful expulsion of gastric contents through mouth
*All three suggest GI disorders, diabetic acidosis, liver disease, anorexia nervosa/bulimia
n Regurgitation = raise esophageal/gastric contents w/o nausea or retch
Hematemesis = red blood + brownish/blackish vomitus with “coffee ground” particles — duodenal/gastric ulcers
n Stools Black — melena
Red blood — hematochezia
Obstipation = constipation with no fecal passage/gas — intestinal
obstruction
Diarrhea = increase frequency of stool passage-watery
Large diarrheal stools — small bowel or proximal colon
problem
Small stools — left colon or rectum
Steatorrhea= large, yellow/gray, greasy, foul-smelling, frothy
– malabsorption
Tenesmus = intense urge but no result — rectal problem
n Jaundice (icterus) = yellow skin and eyes due to increased bilirubin
Mechanism: Increased bilirubin production
Decreased uptake of bilirubin by liver
Decreased ability of liver to conjugate bilirubin
Decreased excretion of bilirubin into bile
–Hepatocellular Jaundice = liver cell damage
–Cholestatic Jaundice = damage liver cells or
intrahepatic bile ducts
Impaired bilirubin excretion — bilirubin conjugated.
Causes : Viral hepatitis, cirrhosis, drug-induced cholestasis
Dark urine — impaired bilirubin excretion
Acholic stool — light color, gray — viral hepatitis
Itching Skin — cholestatic/obstructive jaundice
Risk factors for liver disease:
Hepatitis
Cirrhosis
Toxic liver damage
Gallbladder disease
Hereditary
Urinary Tract
n Kidney Pain: near costovertebral angle — acute pyelonephritis
Can radiate to umbilicus. Visceral pain-dull, aching, steady
n Ureteral Pain: colicky pain originating in costovertebral angle — lower
quadrant of abdomen — upper thigh — testicle/labium
–Obstruction of ureter by urinary stones
n Bladder — suprapubic pain, dull, steady
n Dysuria(?) = pain on urination — inflammation of bladder/urethra
Burning sensation — Cystitis, urethritis, stones, acute prostatitis
Female-internal burning — cystitis/urethritis
–external burning — vulvovaginitis
n Urinary urgency = intense desire to void — bladder infection
Man with bladder obstruction:
–Hesitancy in starting urination
–Strain to void
–Reduced force of urinary stream
–Dribbling
Urethritis = pain on urination w/o frequency or urgency
n Polyuria = increase in 24-hour urinary volume (3 L)
n Urinary frequency = abnormally frequent voiding (no polyuria — bladder
Problem or flow impairment )
n Nocturia = urinary frequency at night
n Polydipsia = abnormally high intake of water, assoc w/ polyuria
n Hematuria = blood in urine — detect by urinalysis
Gross hematuria = detect with eyes
Causes : cystitis, bladder malignancy, kidney stone
n Urinary incontinence = involuntary loss of urine
–urge incontinence = detrusor contractions too strong
–stress incontinence = intraurethral pressure too low
–overflow incontinence = bladder enlarged due to obstruction
–functional incontinence = environmental
Genital System-Female
n Girls in US: menarche begins between 9-16 years old
n Factors determining menarche: nutrition, genetics, socioeconomic status
n Amenorrhea = absence of periods
Primary amenorrhea = failure to initiate periods
Secondary amenorrhea = period stops after having begun — pregnancy,
Lactation, menopause, malnutrition, anorexia nervosa,
Hypothalamo-pituitary
n Oligomenorrhea = infrequent periods
n Polymenorrhea = abnormally frequent periods
n Menorrhagia= increased amount/duration of flow
n Postcoital bleeding = bleeding after intercouse — cercival cancer or polyps
n Menopause = cessationof menses between ages 45-52 years
Postmenopausal bleeding = bleeding after 6 months w/o periods
– endometrial cancer (?)
Hot flashes and sweating
n Dysmenorrhea = pain w/ menstruation: bearing down, aching, cramping in
Lower abdomen, pelvis. PMS = 4-10 days before period:tension, mood swings, irritability, depression
n Amenorrhea + heavy bleeding — threatened abortion or dysfunctional
uterine bleeding
n Vulvovaginitis
Vaginal Discharge (Amount, color, consistency, odor)
itching
n Sexual Dysfunction: base on phase of sexual response -desire, arousal, or
orgasm — health, lack of estrogen, medications, attitudes
Dyspareunia = pain on intercourse
Vaginismus = involuntary spasm of muscles around vaginal orifice
Makes intercourse painful
Genital System-Male
n Penile Discharge: Color, consistency, amount — Penile urethritis
n Sores/growths on penis, swelling/pain in scrotum — STDs
n Infections via oral-penile transmission (i.e. oral sex) — Clamydia,
gonorrhea, syphilis, herpes
n Sexual problem:
Desire Phase — psychogenic, medication, or medical problem
Arousal Phase — erectile disorder due to systemic or psychogenic
problem
Ejaculatory Phase/Orgasm — Premature ejaculation = young men
Reduced/absent ejaculation = middle age men
Ask about medication, surgery, neurological deficit
Peripheral Vascular System
n Swelling of feet/legs — venous disorder
n Coldness/numbness — arterial disorder
n Local inflammation — superficial thrombophlebitis, lymphangitis,
cellulitis, erythema nodosum
n Pallor of fingers -> Cyanosis -> Redness — Raynaud’s Disease/Phenomenon
n Intermittent claudication = pattern of pain accompanying impairment of arterial flow — in older people — aching, cramping, numbness, severe fatigue — appears w/ walking and disappears w/ rest
Musculoskeletal System
n Problems of joints:
Bursitis = inflammation of bursae
Tendonitis = inflammation of tendon
Tenosynovitis = inflammation of tendon sheaths
Sprains = stretching/tearing of ligaments
n Pain in hip joints usually in groin or buttock — can be felt in anterior thigh or in knee – Hip pain near greater trochanter of femur — trochanteric bursitis
n Pain in only one joint area — bursitis, tendinitis, monoarticular arthritis, or
Injury
n Rheumatic fever/gonococcal arthritis — migratory pattern of spread
n Rhematoid arthritis — progressive and symmetrical
n Severe pain + swollen joint (no injury) — gouty or septic arthritis
In children — osteomyelitis
n Associated symptoms:
– Other symptoms in involved joint — swelling, stiffness, limited
motion, tenderness, warmth, redness
Arthralgias = pain in joints without arthritis (redness, warmth)
Myalgias = pain in muscles
Gelling = stiffness after inactivity — degenerative joint disease -
last few minutes
Stiffness in rheumatoid arthritis — 30 minutes +
Tenderness, warmth, redness in joint — acute gout, septic arthritis, Rheumatic fever
–Generalized symptoms — fever, chills, fatigue, anorexia, weight loss
Common in rheumatic fever; High fever + chills — infection
–Symptoms elsewhere in body giving important clues to nature of
problem
Skin: butterfly rash on cheek — Systemic Lupus Erythematosus
Scaly rash + pitted nails of psoriasis — Psoriatic arthritis
Papules, pustules, vesicles on reddened bases on distal
extremities — Gonococcal arthritis
Expanding erythematous patch early in illness — Lyme
Disease
Hives — Serum sickness, drug reaction
Erosions or scales on penis + crusted scaling papules on
soles and palms — Reiter’s Syndrome = arthritis + urethritis + conjuctivitis
Maculopapular rash of rubella — arthritis of rubella
Clubbing of fingers — Hypertrophic osteoarthopathy
Preceding sore throat — Acute rheumatic fever or gonococcal arthritis
Diarrhea + abdominal pain — arthritis w/ ulcerative colitis
Low Back Pain
Numbness, weakness, tingling — nerve root involvement
Neck Pain
Nervous System
n Loss of consciousness — vasodepressor syncope, hyperventilation, tonic-clonic seizure – in young people
n Cardiac sycope — sudden onset, offset – older people
n Sycope = sudden, temporary loss of consciousness that occurs
When blood flow to brain insufficent
Near-sycope (pre-sycope) = symptoms of impending faint– muscle
weakness, lightheadedness, without actual loss of consciousness
n Tonic-clonic seizure (grand mal) = starts faster, lasts longer, can involve injury and incontinence, slower recovery Bilateral, distal weakness — polyneuropathy
Bilateral proximal weakness — myopathy
Weakness w/ repeated effort-improve w/ rest — myasthenia gravis
Involuntary movements (tremors)
n Paresthesias = sensations w/o obvious stimulus – prickling, tingling,
warmth, coldness, pressure (leg goes to sleep-nerve compression)
n Dysesthesias = distorted sensations in response to stimulus, can last longer than stimulus (light touch perceive as burning)
Loss of sensation, paresthesias, dysesthesias — involve peripheral
nerves,
sensory roots, spinal cord
Paresthesias in hand and mouth — hyperventilation
n Restless Legs Syndrome = develops at rest, urge to move about– relieve by walking
Hematologic System
n Congenital bleeding disorder — spontaneous bleeding, common in males
n Petechiae in skin + mucous membraine + small bruises — platelet disorders
Large bruises, hematomas = mass of extravasated blood, hemarthroses = bood in joints — clotting disorders
n Spontaneous bleeding, bleeding w/ minor trauma — general bleeding
disorder
n Possible deficiency in Vit C/K — diet, malabsorption
Endocrine System
n Obesity, weakness, fatigue, ankle edema, decreased/no menstrual periods –
Cushing’s Syndrome (adrenal cortical hyperfunction)
n Weakness, weight loss, nausea, vomiting, darken skin, postural hypotension — Addison’s Syndrome (adrenal insufficiency)
n Diabetes mellitus — polyuria, polydipsia, polyphagia, weakness, fatigue, weight loss, blurred vision
n Cold intolerance, decreased sweating — Hypothyroidism
n Episodic sweating and heat intolerance — menopause
Tags: anemia, Angina Pectoris, anxiety, brain tumors, bulimia, chronic infections, depression, depression anorexia nervosa, diabetes, endocrine, GI, Hoarseness, hyperthyroidism, infections, malabsorption, malignancies, migraine, Mitral Stenosis, mono, obstructive lung disease, pericarditis, Pharyngitis, Pleurisy, reflux gastric acid, Subarachnoid, Tracheobronchitis, ventricular failure
