• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/190

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

190 Cards in this Set

  • Front
  • Back
Anemia
  • decrease in volume of RBC or hemoglobin concentration
  • decreased oxygen-carrying capacity
Causes of Anemia
  • iron metabolism*
  • vitamin deficiencies*
  • chronic illness
  • hemolytic anemias
  • hemoglobin disorders
  • malignancy
Symptoms of anemia
  • fatigue
  • headache
  • lightheadedness
  • pallor
  • tachycardia



[makes you tired, light-headed, pale, gives you a headache and racing heartbeat]

Pathology/etiology of sickle cell anemia

  • genetic disorder (point mutation)
  • hemoglobin synthesis
  • beta globlin chain
  • deformed (sickle-shaped) red blood cells
Precipitating factors of sickle cell anemia
  • hypoxia
  • dehydration
  • acidiosis
  • infection
  • hypothermia
Oral manifestations of sickle cell anemia
  • osteomyelitis
  • paresthesia
  • pulpal necrosis
Prognosis for sickle cell anemia
-variable

-disability


-decreased lifespan


-90% survival age 20


-50% survival age 50

Clinical features of sickle cell anemia
  • chronic hemolysis
  • vaso-occlusive complications which can lead to ischemia/infarction
  • severe anemia
  • infection
  • hyperbilirubinemia
  • impaired growth and development
List some ways in which sickle cell anemia can result in vasoocclusive crisis


  • infarction (renal, tissue)
  • stroke
  • seizure
  • ischemia
What causes rare and life-threatening aplastic anemia?
  • The failure of hematopoietic stem cells to differentiate
  • pancytopenia (reduction of ALL blood cells)
Which type of anemia involves all hematopoietic lineages?
aplastic anemia
Etiology of aplastic anemia



(What causes pancytopenia and failure of hematopoietic stem cells to differentiate?)

  • Toxin exposure
  • Drug exposure
  • Infection
  • Immune reaction
  • Genetic disorders
Clinical findings associated with aplastic anemia

pancytopenia -> total marrow shutdown




no platelets = thrombocytopenia; bleeding disorders


no WBC = bacterial/fungal infection


no RBC= anemia;fatigue / weight loss

Management of aplastic anemia
  • withdrawl of toxin/drug
  • antibiotics
  • transfusions
  • marrow transplant
  • steroids
Mortality of aplastic anemia
80%
Pathological features of neutropenia
  • decreased circulating neutrophils (<1500)
  • susceptibility to bacterial infections
  • oral infection may be first sign of disease
  • lymphocytes, plasma cells, monocytes intact
Etiology of neutropenia
  • genetic/congenital
  • idiopathic
  • due to malignancy such as leukemia (reduced production)
  • drugs
  • infection
  • autoimmune reaction (decreased destruction)
Management of neutropenia
-granulocyte colony-stimulating factor (G-CSF)

-antibiotics


-oral hygiene: chlorohexidine rinses

Which hematologic disorder is managed with granulocyte colony-stimulating factor ?
neutropenia
What is thrombocytopenia?
bleeding disorder characterized by a decreased number of circulating PLATELETS (prolonged bleeding time, normal PT and PTT)
What causes thrombocytopenia?*
  1. Reduced production
  2. Increased destruction
  3. Increased consumption
  4. Sequestration
What might cause increased destruction of platelets leading to thrombocytopenia?
immune reaction
What might cause reduced production of platelets leading to thrombocytopenia?
malignancy (leukemia, for example, fills up an area with blood causing a DECREASE in other things), toxins, drugs


What might cause increased consumption of platelets leading to thrombocytopenia?
intravascular thrombi
What might cause sequestration of platelets leading to thrombocytopenia?
splenomegaly
Clinical features of thrombocytopenia
  • petechiae
  • ecchymosis
  • hematomas
  • epistaxis
  • gingival bleeding
What is leukemia?
malignant neoplasm of hematopoietic stem cells (white cells of lymphoid or myeloid origin)
Leukemia can be either _________ or __________ and of _______ or ________ origin.
acute; chronic



lymphoid; myeloid

What causes leukemia?
  • environmental: toxins, radiation, viruses
  • chromosomal anomalies - philadelphia chromosome (CML)
Symptoms of leukemia
  • fatigue, dyspenia, fever, infection
  • petechia - wbc in marrow push platelets out = bleeding
  • anemia - pallor : wbc take over bone marrow
  • lymphadenopathy
  • hepatosplenomegaly
Oral findings of leukemia
  • gingival enlargement
  • gingival hemorrhage
  • ulceration
  • bone destruction
  • candidiasis
  • herpetic infection
What is Langerhans cell histiocytosis?
idiopathic histiocytic proliferation common in children and young adult men!
Clinical features of langerhans cell histiocytosis
  • "floating teeth"
  • swelling, pain, discharge
  • multiple areas: bone (mandible), skin, mucosa, viscera, nodes


Radiographic ft of langerhans cell histiocytosis
  • osteolytic/ radiolucency in periapical region (may mimical periapical pathology)
Histology of langerhans cell histiocytosis
  • histiocytic infiltrate
  • lots of eosinophils
  • indented nuclear contours
  • IHC: CD1a
  • EM: Bibreck granules
Tx of langerhans cell histocytosis
surgical excision - curettage

radiotherapy


chemotherapy

Systemic involvment of LCH
  • bone marrow - pancytopenia
  • liver -fibrosis
  • spleen - splenomegaly
Which hematopoietic disorder mimics periodontal disease and pulpal/periapical pathology?
Langerhans cell histiocytosis
Pt. presents with periodontal disease and eosinophils. Likely diagnosis?






Langerhans cell histiocytosis





("floating teeth")

What is Hodgkin's lymphoma?
  • Malignant lymphoproliferative disease that affects young adults
  • Reed-Sternberg cells
  • Etiology: Epstein-Barr virus
Hodgkin's lymphoma exhibits what type of spread and presents where?
contiguous spread - CONTINUOUS



CERVICAL NODES (70-75%); never oral cavity (non-tender enlargement)

What is the likely diagnosis of a child that presents with fever, night sweats, weight loss, nontender palpable cervical nodes and pruritus?
Hodgkin's lymphoma
Symptoms of Hodgkins lymphoma?
  • fever
  • night sweats
  • weight loss
  • pruritus
Treatment for Hodgkin's lymphoma?
  • radiation therapy
  • chemotherapy
  • fatal if non treated
Non-hodgkin's lymphoma constitutes a diverse group of__________ malignancies characterized by__________ proliferation; 85% are ____ neoplasms.
lymphoid; monoclonal; B-cell
Etiology of ________________ includes immunosuppression, autoimmunity (Sjogren's), and viruses.
non-hodgkin's lymphoma
Which two heme dx are characterized by floating teeth?
1. Langerhan's cell histiocytosis

2. Burkitt lymphoma

_________ arise in bone marrow and circulate in peripheral blood while _________ arise in lymph nodes and may involve extranodal sites.
leukemias; lymphomas
Chronic lymphocytic leukemia (CLL) involves ________ blood
peripheral
Small lymphocytic lymphoma (SLL) involves _____ ______
lymph nodes
Clinical presentation of lymphoma
  • lymphadenopathy
  • bone destruction
  • loose teeth
  • paresthesia
B-cell malignant lymphoma
Burkitt lymphoma
Burkitt's lymphoma is associated with ...
  • children (boys!)
  • endemic = african
  • sporadic = american
  • predilection for jews
  • Epstein-Barr virus
  • Chromosomal translocation (t8, 14)
  • high grade- diffuse small non-cleaved cells (macrophages also)
histopathology of Burkitt's lymphoma

Diffuse, small non-cleaved lymphocytes with macrophages in a starry sky pattern

Agressive malignancy, death 4-6 mo. requires chemotherapy; Associated W/ HIV infection & has the fastest doubling time of any known tumor
Burkitt lymphoma
______ ________ is a ___________ plasma cell malignancy mainly involving _______ _______.
multiple myeloma; multicentric; bone marrow
ASL of multiple myeloma
Black male

60-70


multicentric bone-marrow involvement

Signs/symptoms of multiple myeloma in older black men*
  • bone pain and pathologic bone fracture
  • multiple punched-out radiolucencies
  • amyloid deposition - macroglossia!
  • hypercalcemia/metastatic calcifications
  • renal failure (amyloid deposition in kidney)

*

__________ is a ________plasma cell malignancy usually in spine and is _______________ with 90% occuring in ___________.
plasmacytoma; UNIFOCAL; extramedullary; SOFT TISSUE OF HEAD AND NECK
A "localized form" of myeloma...
plasmacytoma
If a __________ presents as a single lesion in bone (usually spine) 50% will become ________.
plasmacytoma --> myeloma
For which is the prognosis better: extramedullary (soft-tissue) plasmacytoma or unifocal bone plasmacytoma?
osseous ... 50% disseminate in 2-3 years (compared to only 30% in soft-tissue)
___________ is characterized by deposition of extracellular proteinaceous material and comes in two forms: __________ and __________.
amyloidosis: (1) organ-limited and (2) systemic
What are the 4 subtypes of systemic amyloidosis?
1. primary (myeloma-associated)

2. secondary


3. hemodialysis-associated


4. heredofamilial

Primary/myeloma-associated amyloidosis primarily affects ______ ______ and is characterized by skin/oral lesions.
older men
What biochemical entity is associated with primary amyloidosis?
AL amyloid light chain protein
What are the clinical features of primary amyloidosis?
Elderly male presents with nonspecific symptoms (weight loss, fatigue, paresthesia)

-skin and oral lesions


-macroglossia


-dry eyes and mouth


-AL amyloid light chain protein

What causes dry mouth and eyes in primary amyloidosis?
amyloid deposits in the connective tissue constricts the glands associated with moistening our eyes and mouths
________ amyloidosis is associated with chronic inflammatory diseases: osteomyelitis, tuberculosis and sarcoidosis and Amyloid-associated antibody (AA)
Secondary amyloidosis
Hemodialysis associated amyloidosis is characterized by an accumulation of _____________ in ______ and _______.
beta-2-microglobulin in bone and joints
Patients with heredofamilial amyloidosis usually present with
polyneuropathies
Histology of amyloidosis
extracellular eosinophilic material stains with congo red
Death from primary amyloidosis is usually from __________ failure
cardiac
Death from secondary amyloidosis is usually from _________ failure
renal
Most common cause of anemia in the US
iron deficiency
Iron deficiency is most commonly due to
-increased blood loss (menstruating women)

-increased demand (childhood/pregnancy)


-decreased iron intake


-decreased absorption of iron

Clinical ft. of anemia
  • Fatigue, headache, lightheaded, tachycardia, pallor
  • angular cheilitis, atrophic glossitis, burning sensation
What are the lab findings of iron-deficient anemia?
  • hypochromic, microcytic anemia(decreased number of small, pale, red blood cells)
Plummer-Vinson (Paterson Kelly) Syndrome is a triad of
  1. iron deficiency anemia
  2. glossitis
  3. dysphagia
Classic pt. presentation of Plummer-Vinson syndrome
middle-aged women
Plummer-Vinson Syndrome is considered a _________________ process due to an association with increased incidence of ____________
premalignant; oral and esophageal squamous cell carcinoma
What are the oral manifestations of Plummer-Vinson Syndrome?
burning mucosa, angular cheilitis, atrophic glossitis
______________ is a type of megaloblastic anemia due to lack of _________. Autoimmune reaction that destroys parietal cells in the stomach.
pernicious anemia; intrinsic factor
What age group is usually affected by pernicious anemia
old people


What is a distinguishing feature of pernicious anemia?
paresthesia - tingling, numbness of the extremities
Lab findings of pernicious anemia
macrocytic anemia (decreased B12)
What anemia is associated with increased risk of gastric carcinoma?
pernicious anemia
__________ is due to excess production of growth hormone by a functioning _________ __________after closure of the epiphyseal plate
acromegaly; pituitary adenoma
Oral manifestations of acromegaly
-mandibular prognathism

-anterior open bite


-spacing between teeth


-macroglossia

Hypothyroidism is called _______ during childhood and _________ during adulthood.
childhood: cretinism

adulthood: myxedema

What's the difference between primary and secondary hypothyroidism?
primary - thyroid gland isn't secreting enough hormone



secondary - pituitary gland isn't secreting TSH hormone

Clinical ft. of hypothyroidism
-goiter

-lethargy


-cold intolerance



Oral manifestations of hypothyroidism
-swollen lips

-macroglossia (GAG deposition)


-failure of tooth eruption

Laboratory findings for hypothyroidism
T3 and T4 decreased

primary: TSH is increased


secondary: TSH is decreased

Tx for hypothyroidism
levothyroxine
Excess production of thyroid hormone that increased BMR
hyperthyroidism
65% of cases of hyperthyroidism are due to ___________ disease
Graves
In hyperthyroidism, auto antibodies directed against _______ receptors on thyroid cells cause excess release of ___.
TSH; T4
Causes of hyperthyroidism
1) functioning thyroid tumor

2) pituitary adenoma that produces TSH

Laboratory findings for hyperthyroidism
T4 increased

TSH decreased

Primary hyperparathyroidism occurs due to uncontrolled production of ____ by functioning cells.
PTH
Secondary hyperparathyroidism is due to __________ from chronic renal disease.
hypocalcemia
Classic pt. affected by hyperparathyroidism
older female
"stones, bones, and abdominal groans"
clinical triad of hyperparathyroidism
Manifestation of hyperparathyroidism bone
ground glass opacification; loss of lamina dura due to calcium leaching



brown tumor




What is a 'brown tumor'?
large, multilocular radiolucency leading to cortical expansion; associated with hyperparathyroidism



called "osteitis fibrosa cystica" if multiple bones are affected

This histology of hyperparathyroidism involves vascularized fibrous CT interspersed with __________________
multinucleated giant cells
What are the two forms of Addison's disease?
primary - decreased corticosteroid production due to destruction of adrenal cortex



secondary - decreased ACTH due to pituitary abnormality

Clinical ft. of Addison disease
90% of adrenal cortex must be destroyed before symptoms occur



-fatigue, depression, weakness, hypotension


-bronzing of the skin

Oral manifestations of Addison disease
-brown macular pigmentation (gingiva and labial mucosa)
Treatment for Addison's disease:
increase steroid dose before a stressful event such as perio/oral surgery
Inflammatory disease that affects distal portion of small bowel and proximal colon
Crohn's disease
Teenager with apthous-like ulcerations in the depth of the vestibule; cobblestone appearance and metallic taste
Crohn disease
Describe the vestibular ulcers associated with Crohn disease
apthous-like

linear


hyperplastic, elevated borders (hotdog)



Inherited condition in which 2+ ectodermally-derived structures fail to develop
ectodermal dysplasia
Ectodermal dysplasia is ___ linked
x-linked inheritance


Clinical ft. of ectodermal dysplasia
  • missing skin, hair, nails, teeth, sweat glands
  • heat intolerance due to less sweat glands
  • fine, sparse blone hair
  • periocular pigmentation



Due to defect in normal keratinization of oral mucosa
white sponge nevus
inheritance of white sponge nevus
auto dominant
Baby or young child presents with bilateral hyperparakkeratosis and acanthosis on the buccal mucosa
white sponge nevus
Histology of white sponge nevus
- hyperparakeratosis and acanthosis

-eosinophilic consdensation in perinuculear region of epithelial cells

___________ is a type ___ hypersensitivity/ autoimmune disease that affects the skin and mucous membranes
pemphigus; type 2
Autoantibodies in pemphigus are directed against ....
desmoglein 3 and and desmoglein 1 (the glue that holds the epithelial cells together
Oral manifestation of pemphigus:
blister -> ulcer -> crust

desquamative gingivitis


positive Nikolsky sign

Histopathologic features of pemphigus
  • intraepithelial separation just above the basal cell layer
  • acantholysis
  • Tzanck cells (separated epithelial cell)
  • Chicken wire pattern of IgG and C3
Treatment for pemphigus
systemic corticosteroids + immunosupressive drugs
Cicatricial pemphigoid is chronic blistering, mucocutaneous autoimmune disease that is a type ___ hypersensitivity that
II
Which is most common in middle aged WOMEN, pemphigus or pemphigoid?
pemphigoid
Which has ocular manifestations in addition to desquamative gingivitis, pemphigus or pemphigoid?
pemphigoid (symblepharon, entropion, trichiasis)
What is the pattern of IgG and C3 in pemphigus? pemphigoid?
pemphigus: chicken wire pattern



pemphigoid: linear band at BM

________ ________ is a blistering, ulcerative mucocutaneous condition of uncertain pathogenesis with 50% of cases being associated with herpes simplex or mycoplasma pneumoniae and is NOT autoimmune in nature
erythema multiform
Who is most likely to present with eythema multiform?
young adult male!
'Erythema multiform major' (AKA ______-_______ syndrome) is usually triggered by a _____ rather than by __________; _________ may occur.
Stevens-Johnson; drug not infection; symblepharon
What is the most severe form of erythema multiform?
Toxic epidermal necrolysis
Who's most likely to present with toxic epidermal necrolysis?
OLD WOMAN with severe penicillin allergy (almost always triggered by drug)
_________ _________ (geographic tongue) is a common, benign condition that may represent a hypersensitivity to an an environmental factor and usually affects ________
Erythema migrans; women
Clinical ft. of erythema migrans
  • scalloped tongue border
  • erythema
  • hyperparakeratosis
  • acanthosis




Histopath of erythema migrans
Munro abscesses - neutrophils in the superficial epithelium



hyperparakeratosis, spongiosis, acanthosis, elongation of rete ridges

_________ _______ is a common, chronic, dermatologic disease that often affects oral mucosa and is an autoimmune, T-cell mediated process and has a female predilection
Lichen Planus




Cutaneous lichen planus is characterized by what 3 P's?
Purple

Pruritic


Polygonal papules

Wickham's striae
white line associated with cutaneous lichen planus or reticular oral lichen planus
3 forms of oral lichen planus
1. reticular (asymptomatic - thick keratin)

2. erosive (painful; white, radiating bands)


3. desquamative gingivitis

Most common location for lichen planus
buccal mucosa
lichen planus can resemble ....
tertiary syphilis
Histopathology of lichen planus
- orthokeratosis or parakeratosis

-"Saw tooth" rete pegs


- hydropic degeneration of the basal cell layer

immunologically mediated multisystem disease; a type III hypersensitivity
Lupus erythematosus
3 types of lupus erythematosus
1. systemic lupus erythematosus

2. chronic cutaneous lupus erythematosus


3. subacute cutaneous

Characteristics of systemic lupus
- 31 yo female

- butterfly rash over malar/nose area


- kidney failure

oral lesions associated with chronic cutaneous lupus erythematosus are similar to those seen in what other dermatological disease?
erosive lichen planus ; but lupus is NOT bilateral whereas lichen planus IS
the black patches associated with chronic lupus arise to the destruction of _______ ______ _____ and subsequent melanin incontinence
basal cell layer
diagnosis of lupus erythematosus
- shaggy or granular band of IgM , IgG or C3 at the basement membrane zone
What are the direct immunofluoresence findings for Lichen Planus?
linear band of fibrin at BM (t-cell mediated)
IF findings in lupus
shaggy band of IgG, IgM, C3 similar to pemphigoid
An immunologically mediated disease characterized by dense collagen deposition in tissues; typically in adult females
systemic sclerosis
Sclerodactyly /clawlike fingers associated with
systemic sclerosis
oral manifestations of systemic sclerosis
-microstomia

-xerostomia


-diffuse widening of the PDL space

Diagnosis of systemic sclerosis
Anti-SCl 70 (topoisomerase)
Treatment for systemic sclerosis
D-penicillamine (inhibits collagen production)
CREST usually affects ...
eldery women
CREST is an acronym for ...
Calcinosis cutiss

Raynaud's phenomenon


Esophageal dysfunction


Sclerodactyly


Telangectasia

Lab finding of CREST
anticentromere antibodies
Degenerative condition associated with atrophic changes on one side of the face; a localized form of scleroderma
progessive hemifacial atrophy
"Coup de sabre"
"strike of sword" linear scleroderma on midline of forehead; associated with progressive hemifacial atrophy
Clinical presentation of progressive hemifacial atrophy
  • young woman
  • atrophy of the skin and subcutaneous structures
  • coup de sabre
  • enophthalmos (eyes pushed inward due to decrease in periorbital fat)
Oral manifestation of PHFA
unilateral atrophy of the tongue

mouth/nose deviation


unilateral posterior open bite



premature closure of the cranial sutures
Crouzon syndrome
Crouzon syndrome (premature closure of the cranial sutures) exhibits __________ __________ inheritance and is positively correlated with increasing____________ _____.
autosomal dominant; paternal age
Ocular protrusion, hearing loss, occlusal abnormalities, crowding, midface hypoplasia all characterize ________ syndome.
Crouzon
Defects in structure derived from 1st and 2nd branchial arches; autosomal dominant trait associated with increased paternal age
Treacher Collins syndrome
Clinical features of Treacher-Collins
narrow face

downward slanting eyes


hearing loss


hypoplastic zygomas


coloboma (75%) -notch in lower eyelid



Oral manifestations of TC syndrome

  • hypoplastic mandible = reduced chin
  • hypoplastic coronoid and condylar process
  • cleft palate (1/3 of cases)
  • xerostomia from hypoplastic/absent parotid gland!
Auto-recessive trait associated with infection with A. actinomycetemcomitans
Papillon-LeFevre syndrome
Derm. manifestations of Papillon-LeFevre syndrome
diffuse keratosis on the palms, soles, dorsa of hands and feet, elbows and knees
Oral manifestations of papillon-lefevre
advanced periodontitis (primary and secondary dentitions)

floating teeth


exfoliation of teeth

Tx for papillon-lefevre
antibiotics: amoxicillin + clavulanate potassium
Sturge-Weber Angiomatosis is a devlopmental condition characterized by _________ ___________ of face and brain.
vascular hamartomas
Clinical ft. of Sturge-Weber
unilateral port wine stain or nevus flammeus on the face distributed along one or more segments of the trigeminal nerve
Sturge-Weber syndrome is associated with ________ ________ in ipsilateral cerebral cortex and can lead to mental retardation if not detected
leptomeningeal angiomas
defects that primarily involve the skull and clavicles
cleidocranial dysplasia
occular hypertelorism (wideset eyes), broad nose base, midface hypoplasia, mobile shoulders due to hypoplasia/absence of clavicles
cleidocranial dysplasia
oral manifestations of cleidocranial dysplasia
-high palatal arch

-retained primary teeth


-unerrupted secondary teeth


- supernumerary teeth

painless bilateral expansion of the posterior mandible is characteristic of which syndrome in children?
Cherubism
Radiographic ft. of cherubism
bilateral multilocular expansile radiolucencies*
Histology of cherubism
  • fibrous connective tissue containing multinucleated giant cells
  • perivascular eosinophilic cuffing
Freckle-like lesions in periorificial areas are associated with ...
Peutz-Jegher's syndrome
Hamartomatous intestinal polyps in illeum and jejunum can lead to intestinal obstruction in which syndrome ? (1-2% of pt. develop gastric carcinoma)
Peutz-Jegher's syndrome
Hereditary Hemorrphagic telangiectasia is a mucocutaneous disorder that resembles which other syndrome?
resembles Peutz-Jegher's but the macules are red and not blue-brown
Hereditary Hemorrphagic telangectasia is usally initially diagnosed due to
epistaxis
A group of inherited CT disorders; 10 types all characterized by production of abnormal collagen
Ehlers-Danlos
clinical ft. of Ehlers-Danlos
hypermobility of joints, easy bruising, elasticity of skin, poor wound healing