Part 1: Pathology (Lung, Renal, NS, Thyroid, GI, Cancer) Flashcards
Example of Metastatic calcification
Hypervitaminosis D
What is Dystrophic calcification?
Calcification into already abnormal/damaged tissue (scar tissue)
Example of Caseous degeneration
Tuberculosis
What type of calcification is seen in TB?
egg shell calcificatino
Fatty degeneration of the liver is known as
nutmeg liver
fatty degeneration of the heart is known as
Tabby cat heart
What does liquefaction degeneration affect?
CNS or Skin
Wallerian degeneration affects
peripheral nerves
degenerates until the next node of ranvier
What is Karyorrhexis degeneration?
destructive fragmentation of the nucleus
what is karyolysis degeneration?
nuclear rupture
what is chromatolysis degeneration?
destruction of cell bodies
Definition of Atrophy
decrease in size (MC in muscle)
Definition of Hypertrophy
increase in size
Definition of Hyperplasia
increase in the number of cells
Definition of Metaplasia
changes from one cell type to another cell type
Example of metaplasia (2)
1) PCCE changing into stratified squamous in smoker lungs
2) barrett’s esophagus
Definition of Dysplasia
change in size, shape or function of a cell
Definition of Anaplasia
Complete disorganization of a cell (cancer)
What type of growth disturbance can be precancerous?
Dysplasia (change in cell shape, size or function)
What is the MC cause of lung cancer
Squamous cell carcinoma
Definition of Agenesis
failure of an organ to develop due to absense of PRIMORDIAL tissue
Definition of Aplasia
defective development of an organ
Definition of Hypoplasia
underdevelopment or incomplete development of an organ
(organ smaller than normal)
What is composed of Type I Collagen?
bone, muscles, tendons, ligaments, fascia
What is composed of Type II Collagen?
Disc (nucleus pulposis)
What is composed of Type III Collagen?
“reticular” spleen & lymph nodes
Type III Collagen does what?
Early wound healing and speeds repair
What cell secretes Type III collagen?
Myofibroblast
What is composed of Type IV Collagen?
Basement Membrane
What causes Silicosis?
silica from sand, rock or glass
What type of calcification is present in Silicosis?
egg shell calcification
What disease is common amoung Sandblasters?
Rocky Quarry Disease
Asbestos leads to
Mesothelioma (malignant tumor of lung)
What causes Siderosis?
Iron dust in the lung
What causes Byssinosis?
cotton dust in the lung “brown lung”
What is known as black lung disease?
Anthracosis
Who is susceptible to Anthracosis? what syndrome can they get?
Coal miners; Caplan’s syndrome (anthracosis + RA)
What is Histomycosis/Histoplasmosis?
Endemin fungus around mississippi or Ohio valleys
What is Coccidiomycosis?
endemic fungus in deserts of southwest
“San Joaquin Valley Fever”
What is Blastomycosis?
endemic fungus on Eastern seaboard
(from Florida to Nova Scotia)
Asthma sputum analysis will show…
Curshmann’s Spirals or Charcot Leyden crystals
What disease affects chloride channels?
Cystic fibrosis
AKA for cystic fibrosis
Salty baby syndrome (mom 1st tastes salt)
What part of the body does cystic fibrosis affect?
GI & Respiratory mucus linings & exocrine secretions
People with Cystic Fibrosis are susceptible to
Pseudomonas Aeruginosa
What is Hemosiderosis?
Iron in lungs due to bleeding
What type of lung is seen in pulmonary fibrosis?
honeycomb lung
What disease is considered “Causeous necrosis in lung”?
Tuberculosis
These 3 characteristics can be seen in tuberculosis
1) Ghon lesion
2) granuloma
3) epitheloid histiocytes
What causes Pott’s disease?
when TB spreads to the spine
If a vertebrae collapses from TB it is called
Gibbus Deformity
What is Wegener’s granulomatosis?
vasculitis of the lung & kidney
Barrel chest is seen in
emphysema
Emphysema pt’s have a deficiency of
Alpha-1-antitrypsin
Characteristics of Emphysema
- loss of elasticity
- decreased forced expiratory volume
- decrease transpulmonary recoil
What is Azotemia?
Decreased tubular excretion of nitrogen
(increased nitrogen in blood)
aka for kideny stones
Nephrolithiasis
MC stone in kidney stones
calcium oxalate
What is seen in the urine with nephritic syndrome?
RBCs & small amounts of protein
Example of a disease that causes Nephritic syndrome
Acute glomerulonephritis
What is found in the urine with Nephrotic syndrome?
massive amounts of protein
Disease example of Nephrotic syndrome
Pre-Eclampsia
Triad of symptoms seen in pre eclampsia
Hypertension
Edema
Proteinuria
Symptoms of Eclampsia
Same as Pre Eclampsia + Coma & Convulsions
What is a Pheochromocytoma
Neuroblastoma of adrenal medulla (benign)
What benign tumor of the adrenal medulla can ccause episodic hypertension?
Pheochromocytoma or neuroblastoma
polycystic kidney has what type of appearance?
moth eaten
aka for Wilm’s tumor
Nephroblastoma
what is a Wilm’s tumor?
Malignant mixed kidney tumor MC in children
aka for Addisons disease
hypocortisolism
hypoadrenalism
clinical signs of Addisons disease
bronze discoloration and hyperpigmentation of the face & lips
Addisons results in _________ and the MC cause is a ___________.
decrease ACTH; pituitary tumor
What is Conn’s disease?
excess aldosetrone from benign adrenal tumor
What is cushings doesase?
hypercortisolism or hyperadrenalism
MC cause of cushings disease
glucocorticoids
clinical signs of cuchings disease
moon face
buffalo hump
purple straie
central obesity
What causes a goiter?
hyperplasia of thyroid cells due to lack of iodine
What is graves disease
Hyperthyroidism
Clinical signs of graves disease?
exophthalmoses (bulging eyes
heat intolerance
weight loss
rapid heart rate
hair loss
What is Hashimotos?
autoimmune cause of hypothyroidism
Hypothyroidism is the MC cause of
Chronic lymphocytic thyroiditis
Myxedema is a form of and is caused by _________
hypothyroidism form decreased T4
Myexdema is known as what in infants?
Cretinism
clinical sign of Myexdema
cold intolerance
weight gain
loss of lateral eyebrow
What virus is implicated in cervical cancer?
HPV 16 or 18
What causes cryptochidism?
failure of testis to descend
MC site of endometriosis
ovary
Epispadias vs. Hypospadias
Epi: urethra opens on dorsal surface of penis
Hypo: urethra opens on ventral surface of penis
What is a Leiomyoma?
benigh tumor of smooth muscle
aka for leiomyoma
uterine fibroids
What is the MC cause of infertility?
PCOS
What is the MC cause of testicular cancer in ages 20-35?
seminoma
What type of cells are seen with a Seminoma?
Mesenchymal cells
5 signs of congenital syphilis:
1) Hutchinson’s teeth (notched upper incisors)
2) Rhagades (cracks @ edge of mouth)
3) Saddle nose deformity (flat nose bridge)
4) Sabre Blade Tibia
5) Interstitial Keratitis (vision changes)
What is an Adie’s pupil?
tonic pupil dilation due to CN3 injury of Edinger Westphal Nucleus
What is Miosis?
Tonic pupil constriction due to sympathetic cervial ganglia
What is a. Chancroid?
soft painful chancroid aused by “Haemophilus Ducreyi”
Gonorrhea produces arthirtis MC in the
Knee
Lymphogranuloma venereum is cause by
Clamydia
How do you diagnose Lymphogranuloma Venereum?
Frei Test
What is Trichimonas?
purulent green, frothy, fishy vaginal discharge (viral)
what is achalasia
sphincters remain closed due to absense of myenteric plexus causing megaesophagus
What is Barretts esophagus
metaplasia of esophageal cells into stomach cells causing GERD
What is Budd Chiari?
occusion of hepatic veins
What is the symptom triad of Budd Chiari?
Abdominal pain, ascites, hepatomegaly
1 cause of gallstones
cholecystitis (inflammation of gallbladder
Signs of Crohns disease
- R. sided problem
- skip lesions
- NO BLOODY diarrhea
aka for Crohns disease
distal/terminal/regional enteritis
MC cause of death in children world wide
Enteritis
MC cause of flank red blood in stool
hemorroids
What is Hirchsprung’s?
Congenital megacolon & absense of myenteric plexus
What is Intussusception?
Telescoping of intestine onto itself
What can cause Intussusception?
rotovirus vaccine
What are the characteristics of Mallory Weiss syndrome?
laceration of esophagus & proximal stomach
What is Mallory Weiss syndrome?
Hematomesis due to alcoholism
What is plummer vinson syndrome?
iron deficiency anemia & esophageal webbing
What is a sliding hiatal hernia caused by
anatomically short esophagus
What is Steatosis?
fat in stool (Gallbladder problem)
aka for Ulcerative colitis
toxic megacolon
clinical signs of ulcerative colitis
- Ulcers
- bloody diarrhea
- left side of abdomen
- lead pipe rigidity
what is Volvulus?
twisting of an organ around its long axis
What is Zenker’s diverticulum
outpouching of the pharynx
Diabetes Insipidous has decreased __________ due to _____________.
ADH; posterior pituitary problem
What is Hemochromatosis?
“bronze diabetes” increased iron in the organs & skin
What is Kwashiorkor?
Protein malnutirtion (enough to eat but not the right things)
What is Marasmus?
Calorie malnutrition (not enough to eat)
What is Wilson’s metabolic disorder?
inborn error of copper metabolism
Clinical signs of Wilson’s metabolic disorder:
Kayser Fleisher rings (copper deposits in eyes)
What causes ALS? (Lou Gehrigs)
damage to anterior horn & corticospinal tracts with NO SENSORY LOSS
LMN in upper extremity & UMN in lower extermity
What is Alzheimer’s disease
progressive atrophy of cerebral cortex
#1 cause of dementia
In Alzheimers there is a decrease of
Acetylcholine
The MC metastasis from the lungs is to the
brain
What is the MC brain tumor
Astrocytoma
What brain tumor has the worst diagnosis
Glioblastoma Multiform
Medulloblastoma’s are MCly seen in _______________ and are the MC _____________ tumor.
children; cerebellum
What is the slowest growing brain tumor?
Oligodendroglioma
What is the MC cause of unilateral sensorineural hearing loss?
Schwannoma
AKAs for Schwanoma
acoustic neuroma
onion bulb tumor
A schwannoma affects what CN?
7
What is Friedrich’s ataxia?
lesion of sclerosis of spinocerebellar tract (Chromosome 9)
What is Horner’s syndrome?
Interruption of cervical sympathetics from trauma or pancoast tumor
Signs & Symptoms of Horners Syndrome
Ptosis, Miosis, Anhydrosis, Enophthalmosis
What is leprosy?
Skin damage & destruction of sensory nerves
akas for leprosy
Hansen’s disease
liquefactive necrosis
What triad of symptoms is seen with Multiple sclerosis?
Charcot’s:
- Scanning speech
- intention tremor
- nystagmus
What is multiple sclerosis?
central demyelination and plaquing o fthe spinal cord or brain
What is Myasthenia gravis?
Autoimmune disease where formation of antibodies that block AcH receptors at the myoneural junction
Myasthenia Gravis produces what symptoms?
1) progressive weakness/fatigue
2) worse @ end of day
3) Tight & Sore jaw
4)Starts in the ocular muscles
aka for Neurofibromatosis
Von Recklinhausen’s disease
What sign is associated with neurofibromatosis?
Cafe au Lait spots
What is Parkinsons disease?
Issue with Dopamine in the basal ganglia
aka for Posterolateral sclerosis
combined systems disease
PLS results from
prolonged pernicious anemia
What nervous system structures area affected in PLS?
Dorsal columns and corticospinal tracts
A syringomyelia at C6 would cause
loss of pain and temp at the C6 level
What is Wernicke Koracoff syndrome?
alcoholic psycosis with dementia
What causes Wernicke Korsokoss syndrome?
depletion of thiamine (B1) from alcoholism
Definition of Adenoma
Tumor of glandular tissue
Defintion of Argentaffinoma
Carcinoid tumor of the neuroendocrine system (specifically intestines)
Characteristics of benign tumors (3)
1) Encapulated (geographic)
2) Short zone of transition
3) usually asymptomatic
What is a Brown’s tumor?
radiolucency due to loss of calcium density from hyperparathyroidism
aka for Burkett’s lymphoma
Epstein Barr Virus
Characteristics of Burrkets lymphoma
- Starry sky appearance
- jaw mass
- central african children
What does Carcinoma in situ mean?
cancer that hasnt spread to the basement membrane
MC form of colon cancer in the US
Adenocarcinoma
MC breast tumor
Fibroadenoma
aka’s for Histiocytosis X
Hans-Schuller-Christian disease
Histolytic granuloma
Eosinophilic granuloma
What happens with a Histiocytosis X?
lipid accumulates -> vertebrae plana
increased IgE reaction -> langerhans cells
Characteristics of Hodgkins Lymphoma
1) Reed Sternberg cells
2) hepatosplenomegaly
3) enlarged lymph nodes
4) Increased IgE
What is Krukenberg’s cancer?
cancer of stomach that metastasizes to ovaries
What is Leukoplakia?
white patch in mouth from tobacco (cant be scrapped off)
MC lung cancer is from
metastasis
MC lung cancer for non smokers
Adenocarcinoma
What lung cancer has the worst prognosis?
Oat cel, small cell
MC lung cancer in smokers
Squamous cell cancer
Where is a Mortons neuroma located
between 3rd & 4th metatarsals
MC benign cardiac tumor
Myxoma
What cancer has the worst prognosis?
pancreatic
Papilloma’s are associated with
warts
What is Rhabdomyoma?
tumor of striated muscle or heart muscles
What does Sarcoma mean?
cancer of connective tissue,, spread through blood
What is a Teratoma?
tumor of all 3 germinal layers
What are Virchow’s nodes?
enlarged supraclavicular lymph nodes
(MC on left side)
What usually causes Virchows nodes?
Mets from GI tract
Anoxia vs. Hypoxia what do they mean?
Anoxia: absense of O2
Hypoxia: O2 deficiency
What is Septicemia (Bacterimia)?
pathogens or toxins in the blood
What is Chemotaxis?
movement of WBCs along concentration gradient
What is Diapedesis (Leukocyte extravasation)?
neutrophils & monocytes squeezing through blood vessel walls toward damaged tissue
What is Pavemanting/Margination?
Adhesion of Leukocytes to endothelium of blood vessels
What causes a clot?
Fibrinogen -> fibrin via thromboplastin
which requires vit K & Calcium
What is an Embolus?
Fatty emboli from a fracture in long bones
What does Exudate mean?
Fluid and high protein in a damaged capillary wall
What are the 5 stages of inflammation?
1) Injury
2) Vasoconstriction
3) Vasodilation
4) Swelling/Edema
5) Healing by mast cells making heparin & serotonin
What is responsible for forming a scar?
Fibrin