Pathology Flashcards
Degeneration:
Calcification
Metastatic = Ca++ into normal tissue
Hypervitaminosis D
Dystrophic = Ca++ into abnormal/damaged tissue
Atherosclerosis, atheroma
Degeneration:
Caseous
cheesy
tuberculosis
Types of Degeneration
Albuminous
cloudy swelling
membrane injury, ion transfer fucked
Degeneration:
Coagulation
Infarction (MI)
Degeneration:
Enzymatic
Pancreas
(digests itself inside-out)
Degeneration:
Fatty
- *Liver = “nutmeg liver”** (reversible if caught early)
- *Heart = “tabby cat heart”** (stripes)
fatty dot → fatty streak → fatty plaque (atheroma) → fibroatheroma (fibrous tissue, calcium)
Degeneration:
Liquefactive
- *CNS**
- brain melts, tertiary syphilis, leprosy*
- *or skin**
- infection*
Degeneration:
Wallerian
peripheral nerves
degenerates to next Node of Ranvier
“dying back phenomenon”
Degeneration:
Zenker’s (Waxy)
hyaline cartilage
most common in skeletal muscle
(at epiphyseal plates)
muscle replaced with hyaline cartilage
Cellular Degeneration
Karyolysis: nuclear rupturing/fading/destruction
Karyorrhexis: nuclear swelling
Pyknosis: nuclear condensation
All the above = “nuclear dissolution”
leads to an anuclear necrotic cell
Developmental Changes
Agenesis: absence of organ (usually paired organs; renal, testicular.. odontoid)
Aplasia: small remnants of the organ, lack of development
Hypoplasia: smaller than normal, usually defective
Primary Pathology
vs
Secondary Pathology
Primary
- arrives spontaneously
- organ in question is fucked up
Secondary
- usually insidious
- resultant from other trauma/pathology
- organ in question is malfunctioning, due to some other organ not working properly
Growth Disturbances
Cancer
Metaplasia: functional change from one cell type to another
Dysplasia: change in size/shape/fx, precancerous, but last stage that can be returned to normal
- *Anaplasia:** complete disorganization of a cell (cancer)
- squamous cell carcinoma*
Collagen Types
Type 1
bone, muscle, tendons, ligaments
Type 2
disc (specifically nucleus pulposis)
- *Type 3**“reticular collagen”, spleen and lymph nodes
- *early wound healing**
Type 4
basement membrane of all tissues
Pneumoconiosis
Silicosis
silica from sand, rock, glass
Rocky QUarry disease
Pneumoconiosis
Asbestosis
asbestos
leads to mesothelioma
malignant tumor
Naval shipyard
Pneumoconiosis:
Siderosis
Iron dust particles
Iron Ore Mill/Steel Mill occupants
Pneumoconiosis:
Byssinosis
cotton dust
Brown Lung
Pneumoconiosis:
Anthracosis
Black Lung Disease from miners
Caplan’s Syndrome
(anthracosis + RA)
W.Virginia coal mines
Pneumoconiosis:
Histomycosis/Histoplasmosis
Endemic fungus
Mississippi/Ohio Valleys
“Mississippi Valley Fever”
“Ohio Valley Fever”
Pneumoconiosis:
Coccidiomycosis
Endemic fungus in deserts of SW USA
“San Joaquin Valley Fever”
(just Valley Fever in other states)
Pneumoconiosis:
Blastomycosis
Endemic fungus on Eastern seaboard
Florida to Nova Scotia
Asthma
Sputum analysis:
Curschmann’s Spirals
& Charcot-Leyden Crystals
↑IgE, ↑Eosinophils
(↑<em>IgE: wheezes, sneezes and weird ass diseases)</em>
Cystic Fibrosis
- Chloride channels affected
- “sweat test”
- mother notices, tastes salt = Salty Baby Syndrome
- Affects:
- GI mucous linings
- respiratory mucous linings
- exocrine secretions
- Susceptible to pseudomonas aeruginosa
- frequently requires lung transplants
Hemosiderosis
iron in lungs due to bleeding
rib fracture
pulmonary embolism (?)
stab/gunshot wound
Pulmonary Fibrosis
honeycomb lung
Tuberculosis
caseous necrosis in lung
Gohn complex, granulomas, epithelioid histiocytes
If spread to spine = “Pott’s Disease”
(with fracture or collapse of VB = Gibbus deformity)
Wegner’s Granulomatosis
Vasculitis of lung and kidney arteries
any system can be affected (polyangitis)
Ben Wegman has vasculitis of lung and kidney
Emphysema
Alpha-1-antitrypsin (A1AT) deficiency = loss of elasticity
can’t breathe out
Azotemia
decreased tubular excretion of nitrogen
↑nitrogen in the blood
Hydronephrosis
most commonly caused by prostate problems/ureter stones
Kidney Stones
“Nephrolithiasis”
acute nephritic shock:
mc stone: calcium oxalate/ Ca++ urate
pain pattern: constant LBP, radiates to flank
localized groin pain = stone in ureters
painful voiding, pink urine
Dx: Murphy’s Punch
Nephritic Syndrome
RBCs and minor amount of protein in urine
(hematuria, mild proteinuria)
acute glomerulonephritis
Nephrotic Syndrome
- *“Pre-eclampsia”**
- *“HEP”: H_ypertension / _E**dema / massive Proteinuria
Eclampsia
HEP + seizure/convulsions+ coma
(potentially fatal)
Polycystic Kidney
multiple cysts on kidneys
moth-eaten appearance
idiopathic
Renal Shock
acute tubular necrosis
Wilm’s Disease
“nephroblastoma”
mixed (palpable) tumor of kidney in children
(if kids experience LBP = no bueno)
*mc malignant tumor found in kids
Addison’s Disease
↓cortisol, ↓BP
hypoadrenia/adrenal fatigue
inadequate cortisol levels = ↑↑ACTH to stimulate cortisol release
↑↑ACTH leads to ↑MSH
↑Melanocyte Stimulating Hormone = hyperpigmentation
fatigue
Cushing’s Disease
↑cortisol (z. fasciculata)
hyperadrenia
moon faces, buffalo hump, purple striae, central obesity
hypertension, water retention
<i>(opposite of Addison’s Disease)</i>
Conn’s Disease
↑↑Aldosterone (z. glomerulosa)
↑↑ADH = water retention
hypertension
Goiter
hyperplasia of thyroid cells due to lack of iodine
Grave’s Disease
Hyperthyroidism
exopthalmoses
heat intolerance
weight loss
rapid HR
weight loss
T3/T4 fiddles with thermostat, turns ↑ = <strong>↑HR, ↑BP, hot</strong>
Hashimoto’s
Autoimmune cause of hypothyroidism
Myxedema
Hypothyroidism
Cretinism in child
cold intolerance
weight gain
slow HR/bradycardia
loss of lateral 1/3 eyebrows
slow mental faculties (memory, common sense)
Cryptorchism
undescended testes
can cause testicular cancer
Endometriosis
mc site: ovary
<em>(endometrial cells should only be in uterus or outside body)</em>
Epispadias/Hypospadias
Epispadias: urethra exits dorsal surface of penis
Hypospadias: urethra exits ventral surface of penis
extreme cases lead to chordee
= sharp angulation of penis
↑HCG
- pregnancy
- hydatidiform mole
- non-viable embryo that has implanted
- “cancer-like”
Leiomyoma
tumor of smooth muscle
fibroids in the uterus
(may disappear at menopause)
Polycystic Ovarian Disease
PCOS
anovulation
obesity
hirsutism
(excess hair on body and face)
Seminoma
cancer of testes (mc form)
mesenchymal/stem cells
Congenital Syphilis
born to mother with syphilis
- Hutchinson’s teeth = notched upper incisors
- Rhagades = cracks at edge of mouth
- Saddle nose deformity = bridge flattened
- Sabre Blade Tibia
- Interstitial keratitis = produces visual changes, sometimes at tympanic membrane
Acquired Syphilis
Treponema Pallidum
Primary
Hard, painless chancre on perineum
Secondary
maculopapular rash and condylomata lata
Latency
may or may not have symptoms
Tertiary
tabes dorsalis, aortic aneurysm, gummas in CNS,
Argyll Robertson Pupil/ “prostitute’s pupil”
<em>accomodates, but doesnt respond)</em>
Pupils
Argyll Robertson Pupil
does not react to light, but constricts upon accomodation
Adie’s Pupil
tonic pupil dilation (mydriasis) due to CNIII Edinger-Westphal nucleus
Miosis
tonic pupil constriction due to injury to sympathetic cervical ganglia
Changroid
soft, painful chancre
Haemophilus ducreyi infection
(G- coccobacillus)
Gardnerella vaginalis
bacterial vaginosis
similar to Trichimonas, except bacterial
Gonorrhea
Gram (-) diplococcus
mcc PID/Pelvic Inflammatory Disease
mcc salpingitis (fallopian tube infection)
- *burning urination**
- *yellow/green pus** in urine
may produce arthritis (mc DJD in knee)
coffee bean shaped
Lymphogranuloma venereum
Chlamydia
rectal strictures (elasticity loss)
Dx: Frei Test
Trichimonas Clamydia
Purulent vaginal discharge
Protozoan
vaginosis
(green/yellow, frothy, foul, fish-like)
Achalasia
spasm of lower esophageal sphincter
causes megaesophagus (expansion) of upper esophagus
lack of motility
(due to absence of myenteric plexus)
Barrett’s esophagus
metaplasia of esophageal cells into stomach cells
caused by GERD
Budd-Chiari
occlusion of hepatic veins
Triad
abdominal pain / ascites / hepatomegaly
Acute
rapid severe upper abdominal pain, jaundice, hepatomegaly, ↑liver enzymes, eventual encephalopathy/shock
Celiac Disease
aka “non-tropical sprue”
gluten intolerance/enteropathy
loss of villi = loss of absorption
intestinal lining flattened & hole-punched
GF diet
Cholecystitis
1 cause of gallstones
gallbladder inflammation
Cholelithiasis
gallstones
mcc by cholecystitis
Chron’s Disease
“regional ileitis”, “distal ileitis”, “regional enteritis”
seen in young people
distal small intestine (ileum), cecum, ascending colon
(R-sided problem)
skip-lesions = “cobblestone” appearance
NO bloody diarrhea
autoimmune
leads to dehydration bc most water absorbed in small intestine
Diverticula
outpouching in the intestine
usually lower L quadrant
(sigmoid and descending)
Dysphagia
difficulty swallowing
Enteritis
bowel inflammation due to improper sanitation
mcc of death of children worldwide
due to dehydration from diarrhea
Hemorrhoids
Swollen and inflamed veins in the rectum and anus that cause discomfort and bleeding
mcc of frank red blood in stool
frank blood = bright red
melena = upper GI bleed- - dark, digested blood
Hirschprung’s Disease
Congenital megacolon
absence of myenteric plexus
= parasympathetic motor plexus
*Meissner’s plexus is chemosensitive
Intussusception
telescoping (collapsing) of intestine onto itself
Irritable Bowel Syndrome
IBS
stress related
spastic colon
distention
pain
diarrhea
Mallory-Weiss Syndrome
Hematemesis (vomitting blood)
due to alcoholism
distention of esophageal veins → bleed into stomach
“Mallory Weiss tears”
= distal esophageal/proximal stomach lacerations
Meckel’s Diverticulum
outpouching of distal ileum
(R side: iliocecal/distal ileum)
Peutz Jegher’s Syndrome
Polyposis, characterized by polypz in the entire GI tract
beningn
Plummer Vinson Syndrome
iron deficiency anemia
cheilosis
esophageal webbing
(partial esophageal occlusion)
glossitis
Pyloric stenosis
Infant projectile vomitting
newborns
Sliding hiatal hernia
anatomically shortened esophagus
too short
Steatosis
fat in stool
problem with gallbladder
Guacamole rampage = steatosis
Ulcerative Colitis*
“Toxic Megacolon”
pathological intestingal changes
ulcers
bloody diarrhea
affects L abdomen
(descending colon, sigmoid colon)
“lead pipe rigidity”
starts at colon, moves distally
Volvulus
twisting of an organ around its long axis
Zenker’s Diverticulum
outpouching of esophagus/pharynx
Diabetes Insipidus
↓ADH
due to PP problem
dehydration
Diabetes Mellitus
↓insulin production by β-cells of pancreas
1st seen in eyes
mc die from heart disease or renal failure
polydipsia, polyuria, polyphagia
(Islets of Langerhaans)
Hemochromatosis
iron in organs and skin
“bronze diabetes”
*iron absorption requires vitamin C
Kwashiorkor
protein malnutrition
severe edema
Marasmus
calorie malnutrition, includes protein
wasting away
Wilson’s Disease
inborn error of copper metabolism
Kayser-Fleisher Rings = copper deposits in eye
Hepatolenticular degeneration
ALS
Amyotrophic Lateral Sclerosis
“Lou Gherig’s Disease”
anterior horn and corticospinal tracts affected
complete motor loss
no sensory loss
LMN in upper extremities
UMN in lower extremities
progressive disease
Alzheimer’s
severe atrophy of cerebral cortex
progressive
↓ACh
#1 cause of dementia
50-60+ years old
Arnold Chiari
Type 1
cerebellar tonsils herniate (specifically vermis)
Type 2
[Type1] + meningiomyelocele in lumbar spine
*can get syrinx because of hydrocephalus - Rexed Lamina 10
brain matter outside brain
Brain Tumors
Astrocytoma
Types I and II
mc CNS tumor
best prognosis
Brain Tumors:
Glioma
mc CNS tumor
Brain Tumors:
Glioblastoma multiform
worst prognosis
affects cerebrum
Brain Tumors:
Medulloblastoma
mc seen in cerebellar vermis in children
mc cerebellar tumor
Brain Tumors:
Oligodendroglioma
slowest growing
affects cerebrum
Brain Tumors:
Schwannoma
CN VIII
Acoustic neuroma
onion bulb tumor
mcc of unilateral sensorineural hearing loss
Brain Tumors
mc brain tumor = Astrocytoma
mc cns tumor = Glioma
worst prognosis = Glioblastoma Multiform
mc cerebellum tumor = Medulloblastoma
slowest/cerebrum = Oligodendroglioma
CN VIII/acoustic neuroma = Schwannoma