MORPHOLOGY (90% from ROBBINS BLUE BOX) Flashcards
more extreme heaping of epithelium with
RED, FRIABLE, GRANULAR (sometimes ulcerated) surface
Chronic Cystitis
Aggregation of lymphocytes into lymphoid follicles within bladder mucosa and underlying wall
Chronic FOLLICULAR cystitis
suppurative neutrophilic infiltration
hyperemic bladder with exudation
Acute Cystitis
Acute Cystitis
suppurative neutrophilic infiltration
hyperemic bladder with exudation
Chronic Cystitis
more extreme heaping of epithelium with
RED, FRIABLE, GRANULAR (sometimes ulcerated) surface
Chronic FOLLICULAR cystitis
Aggregation of lymphocytes into lymphoid follicles within bladder mucosa and underlying wall
infiltration with submucosal eosinophils (bladder)
usually as a manifestation from an allergic reaction
Chronic EOSINOPHILIC cystitis
Chronic EOSINOPHILIC cystitis
infiltration with submucosal eosinophils (bladder)
usually as a manifestation from an allergic reaction
MORPHOLOGIC PATTERNS OF ACUTE INFLAMMATION
outpouring of a thin fluid (effusion) derived from plasma or from secretions of mesothelial cells
SEROUS INFLAMMATION
pleural effusion, pericardial effusion, skin blisters
MORPHOLOGIC PATTERNS OF ACUTE INFLAMMATION
bread and butter appearance
FIBRINOUS INFLAMMATION
fibrinous pericarditis
MORPHOLOGIC PATTERNS OF ACUTE INFLAMMATION
fibrin is formed and deposited in extracellular space
FIBRINOUS INFLAMMATION
MORPHOLOGIC PATTERNS OF ACUTE INFLAMMATION
with localized collection of inflammatory tissue consisting of neutrophils, liquefactive necrosis and edema
SUPPURATIVE INFLAMMATION
acute appendicitis, skin abscess
MORPHOLOGIC PATTERNS OF ACUTE INFLAMMATION
with local defect or excavation of the surface of and organ
it is produced by sloughing of inflamed necrotic tissue
ULCERATIVE INFLAMMATION
peptic ulcer disease
What biochemical disorder in HEME SYNTHESIS presents with skin blisters due to photosensitivity?
PORPHYRIA
What biochemical disorder in DNA REPAIR presents with skin blisters due to photosensitivity?
XERODERMA PIGMENTOSUM
3 most common complications of peptic ulcer disease
bleeding
perforation
obstruction
Which blood vessels will be injured with perforation of
gastric ulcer?
duodenal ulcer?
gastric ulcer: LEFT GASTRIC ARTERY
duodenal ulcer: GASTRODUODENAL ARTERY
MORPHOLOGIC PATTERNS OF ACUTE INFLAMMATION
bacterial toxin induced damage of mucosal lining
SHAGGY MEMBRANE of necrotic tissue
PSEUDOMEMBRANOUS INFLAMMATION
Pseudomembranous colitis
PATHOLOGIC CONSEQUENCE OF
DEFECTIVE inflammation
increased SUSCEPTIBILITY to infections
delayed wound healing
PATHOLOGIC CONSEQUENCE OF
EXCESSIVE inflammation
Autoimmune
Allergies
Alzheimer’s
TISSUE PROLIFERATIVE ACTIVITY
continuously dividing cells
proliferate throughout life
LABILE CELLS
skin, oral cavity, vagina and cervix
TISSUE PROLIFERATIVE ACTIVITY
quiescent tissues which normally have a low level of replication
STABLE CELLS
parenchymal cells of liver, kidneys and pancrease
TISSUE PROLIFERATIVE ACTIVITY
nondividing tissues
contain cells that have left the cell cycle and cannot undergo mitotic division
PERMANENT CELLS
neurons, skeletal muscle and cardiac muscle
clearing and separation of the ECM
and subtle cell swelling
EDEMA
engorged alveolar capillaries with alveolar septal edema and focal intra-alveolar hemorrhage
ACUTE PULMONARY CONGESTION
thickened and fibrotic septa
with hemosiderin laden macrophages
CHRONIC PULMONARY CONGESTION
ISCHEMIC centrilobular hepatocytes with periportal steatosis
ACUTE HEPATIC CONGESTION
HEMORRHAGIC centrilobular hepatocytes accentuated agains uncongested tan liver (NUTMEG LIVER)
CHRONIC HEPATIC CONGESTION
HYPEREMIA vs. CONGESTION:
it is an ACTIVE process in which arteriolar dilation leads to increased blood flow
HYPEREMIA
HYPEREMIA vs. CONGESTION
it is a PASSIVE process resulting from reduced outflow of blood from a tissue
CONGESTION
(congested tissues take on a dusky reddish-blue color (cyanosis) due to red cell stasis and accumulation of DEoxygenated hemoglobin)
pale platelet and fibrin deposits alternating with darker red cell-rich layers
signifies thrombus formed in flowing blood (ANTEMORTEM THROMBOSIS)
LINES OF ZAHN
Thrombus with gelatinous with dark red dependent portion and yellow “chicken fat” upper portion
No lines of Zahn
NOT attached to the underlying wall
POSTMORTEM THROMBOSIS
Thrombi occuring in heart chambers or in the aortic lumen
MURAL THROMBOSIS
usually in the left atrium
setting: abnormal myocardial contraction or endomyocardial injury
thrombi usually beginning at sites of TURBULENCE
frequently occlusive
also with lines of zahn
ARTERIAL THROMBOSIS
ARTERIAL THROMBOSIS common sites
CORONARY (MOST common) > CEREBRAL > FEMORAL
thrombi usually beginning at sites of STASIS
invariably occlusive
more enmeshed RBCs and few platelets
VENOUS THROMBOSIS
VENOUS THROMBOSIS common sites
MOST COMMON: CALF VEINS
lower extremity veins, such as in DEEP VENOUS THROMBOSIS
Test for DVT
Homan Sign
A positive sign is present when there is pain in the calf on forceful and abrupt dorsiflexion of the patient’s foot at the ankle while the knee is extended
non-tender, painless, small hemorrhagic macular/nodular lesions on the palms of soles
microabscess of the dermis
JANEWAY LESIONS
painful, red, raised lesions on the hands and feet due to immune complex deposition
OSLERS NODES
Retinal hemorrhages with pale centers composed of coagulated fibrin caused by immune complex mediated vasculitis (observed in fundoscopy)
ROTH’S SPOTS
DVT that presents as a PALE, painful leg with a diminshed arterial pulse due to VASOSPASM
PHLEGMASIA ALBA DOLENS
DVT that presents a CYANOTIC, painful leg due to EXTENSIVE THROMBOTIC OCCLUSION
PHLEGMASIA CERULEA DOLENS
EMBOLISM:
fat globules impacted in pulmonary vessels,
usually in the setting of open long bone fractures
FAT EMBOLISM
presentation: pulmonary insufficiency, neurologic ssx, anemia, thrombocytopenia
BUZZ WORDS:
bends
chokes
Caisson disease
DECOMPRESSION SICKNESS
wedge shaped with occluded vessel at apex and periphery of organ at base
dominant histologic characteristic: COAGULATIVE NECROSIS
area of ischemic necrosis
INFARCTION
INFARCTION:
occurs in:
- venous occlusion
- loose tissues where blood can collect
- tissues with DUAL CIRCULATION (Lungs, Intestines)
- tissues with previously congested by sluggish outflow
- when flow is re-established to a site of previous arterial occlusion and necrosis
HEMORRHAGIC (RED) INFARCTION
INFARCTION:
occurs in solid organs with END-ARTERIAL circulation (Heart, Spleen, Kidneys)
tissue density limits the seepage of blood from adjoining capillary beds into the necrotic area
PALE (WHITE) INFARCTION
systemic HYPOTENSION due to either:
reduced cardiac output OR
reduced effective circulating blood volume
SHOCK
SHOCK:
failure of myocardial pump resulting from myocardial damage, extrinsic pressure or obstruction to outflow
examples: MI ventricular rupture Arryhthymia Cardiac Tamponade
CARDIOGENIC SHOCK
SHOCK:
Inadequate blood or plasma volume
example: hemorrhage vomiting diarrhea burn trauma
HYPOVOLEMIC SHOCK
SHOCK:
peripheral vasodilation and pooling of blood
endothelial activation/injury
leukocyte induced damage
example: Toxic Shock Syndrome
SEPTIC SHOCK
SHOCK:
Anesthetic accident or spinal cord injury with resultant loss of vascular tone and peripheral pooling of blood
NEUROGENIC SHOCK
SHOCK:
systemic vasodilation and increased vascular permeability by an IgE mediated hypersensitivity reaction
ANAPHYLACTIC SHOCK
SHOCK:
cellular and tissue changes:
similar to hypoxic injury
SHOCK:
adrenals:
cortical cell lipid depletion
SHOCK:
renal:
acute tubular necrosis
SHOCK:
lungs:
normal or diffuse alveolar damage (shock lung)
GENETICS: TRINUCLEOTIDE REPEATS:
CAG
Huntington’s Disease
CAG CAG CAG - sound made by the hunters gun
mnemonic: name of disease:middle letter of trinucleotide
X:Girlfriend’s [fragile X:cGg]
First:Aid [Freidrich’s ataxia: gAa]
Helped me: Ace [Huntington’s: cAg]
My: Test [Myotonic dystrophy: cTg]
GENETICS: TRINUCLEOTIDE REPEATS:
CTG
myoTonic dystrophy
(cTg)
mnemonic: name of disease:middle letter of trinucleotide
X:Girlfriend’s [fragile X:cGg]
First:Aid [Freidrich’s ataxia: gAa]
Helped me: Ace [Huntington’s: cAg]
My: Test [Myotonic dystrophy: cTg]
GENETICS: TRINUCLEOTIDE REPEATS:
CGG
fraGile X
(cGg)
mnemonic: name of disease:middle letter of trinucleotide
X:Girlfriend’s [fragile X:cGg]
First:Aid [Freidrich’s ataxia: gAa]
Helped me: Ace [Huntington’s: cAg]
My: Test [Myotonic dystrophy: cTg]
GENETICS: TRINUCLEOTIDE REPEATS:
GAA
friedrich’s Ataxia
(gAa)
mnemonic: name of disease:middle letter of trinucleotide
X:Girlfriend’s [fragile X:cGg]
First:Aid [Freidrich’s ataxia: gAa]
Helped me: Ace [Huntington’s: cAg]
My: Test [Myotonic dystrophy: cTg]