Intro and Principles of Soft Tissue Diagnosis- Exam I Flashcards
The medical science and specialty practice, concerned with all aspects of disease, but with special reference to the essential nature, causes, and development of abnormal conditions, as well as the structural and functional changes that result from the disease process:
Pathology
Probabilities from possibilities includes:
1. All possible lesions for a patient of:
2. All possible lesions from:
3. All possible lesions that:
- this age, sex, & race
- this anatomical location
- look this way
Recognition requires thorough knowledge of ___ and ___. This is also known as:
Normal and the “range of normal”; WNL
Components of developing a differential diagnosis include:
- recognition
- description of lesion
- patient contribution
- possibilities
- probabilities
DDx:
Differential Diagnosis
When making a differential diagnosis, patient contributions include: (6)
- Age, gender, race
- Current medical conditions and meds
- Supplements
- Social hx
- Oral habits
- Past medical history
When you see a lesion that can only look a certain way- this is considered:
pathognomic
For diagnosing a soft tissue lesion, what should be considered?
- texture/consistency
- association with surrounding tissue (is it fixed vs. moveable) (is it displacing vs. devouring)
For diagnosing a soft tissue lesion, anatomic location:
changes DDx
A white diagnostic possibility characterized by “surface debris”: (5)
- pseudomembranous candidiasis
- chemical burns
- thermal burns
- chemical sloughs (SLS)
- fibrous membranes- ulcers
A white diagnostic possibility characterized by “sub-epithelial lesions”: (4)
- congenital keratitis cysts
- scars
- fordyce granules
- oral lymphoepithelial cysts
A white diagnostic possibility characterized by “epithelial thickening”: (14)
- alveolar ridge keratosis
- contact mucositis- especially cinnamon
- familial epithelial hyperplasia (white sponge nevus)
- frictional keratosis
- hairy tongue
- hereditary benign intraepithelial dyskeratosis (HBID)
- leukoedema
- leukoplakia
- lichen planus
- linea alba
- morsicatio
- oral hairy leukoplakia
- skin grafts
- snuff dipper’s keratosis
What could be noted with the following conditions?
- Pseudomembraneous Candidiasis
- Chemical Burns
- Thermal Burns
- Fibrous membranes
- Chemical sloughs (SLS)
White surface debris
What could be noted with the following conditions?
- Congenital kertotic cysts
- Scars
- Fordyce granules
- Oral lymphoepithelial cysts
White sub-epithelial lesions
What could be noted with the following conditions?
- Linea alba
- Leukoplakia
- Leukoedema
- Lichen planus
White epithelial thickening
What should you be more concerned about white or red lesions?
Red lesions
What could be noted with the following conditions?
- Alveolar ridge keratosis
- Frictional keratosis
- Snuff Dipper’s keratosis
- Hereditary benign intraepithelial dyskeratosis (HBID)
White epithelial thickening
What could be noted with the following conditions?
- Familial Epithelial hyperplasia (white sponge nevus)
- Hairy tongue
- Oral hairy leukoplakia
- Contact mucositis- esp. cinnamon
- Skin grafts
- Morsicatio
White epithelial thickening
When encountering a white lesion, what steps should be followed? (5)
- wipe first
- sources of friction
- chemicals
- heat
- alter environment and re-evaluate
What is the first step that should be taken when encountering a white lesion?
Wipe first!
White lesions are mostly _____ lesions, but _____ matters
“low risk”; location
What are some possible red diagnostic possibilities caused by trauma?
- physical/sexual
- chemical
- thermal
- radiation
- hematoma
Can you feel a macule?
No
- Hemangioma
- Nevus Flameus
- Kaposi Sarcoma
These are all considered:
vascular lesions (red)
- Lichen planus
- Mucous membrane pemphigoid
- pemphigus vulgaris
These are all considered:
Desquamative gingivitis
What steps should be taken/considered when encountering a red lesion?
- diascopy
- location
- habits
- trauma
- medical history (coagulation)
What type of diagnostic possibilities are listed below?
- Lichen planus
- Erythema migrans
- Nicotinic stomatitis
- SCCa
- Lichen mucositis
Red-white
What type of diagnostic possibilities are listed below?
- contact allergy
- drug reactions
- GVHD
- candidiasis variants
Red-white
What type of diagnostic possibilities are listed below?
- discoid lupus erythmatosus
- chronic ulcerative stomatitis
- speckled leukoplakia
- sick lip syndrome
Red-white
What is the hardest plaque to recognize clinically?
erythroplakia
When encountering a red/white lesion, what should be considered?
- social history
- tooth paste/ floss
- mouthwash
- candies, gums, mints, tic-tacs, lozenges
- herbal supplements
- changes in medications
- oral habits
What is the “magic number” for a differential diagnosis?
3
When encountering a pigmented lesion, what should be considered?
- number
- size
- onset
- distribution
- borders
- location
What can present as a leukoplakia?
- dysplasia’s
- hyperplastic candidiasis
and more
When encountering an ulcer what should be considered?
- number
- size
- onset
- frequency/duration
- location
Being able to describe the lesion allows you to:
include some lesions while excluding others
In describing the lesion, ___ will emerge
patterns
The basic components of describing a lesion:
- size
- shape
- color
- borders
- texture
- consistency
- location
A small circumscribed elevated lesion usually less than 1cm in diameter, usually contains serous fluid:
vesicle
Diagnose the following image:
vesicle
Vesicles usually contain:
serous fluid
Describe the size of a vesicle:
less than 1 cm
Describe what is seen in the following image:
- multiple circumscribed elevated lesions
- less than 1cm lesions
- fluid filled
= vesicle
Diagnose the following image:
Bulla
Bullas usually contain:
serous fluid
Circumscribed elevated lesion that is around 1cm in diameter, usually contains serous fluid
Bulla
What is the size of a bulla?
usually around 1cm
Describe the following image:
- circumscribed elevated lesion
- about 1cm in diameter
- fluid filled
= bulla
Various sized circumscribed elevations containing pus:
Pustule
Diagnose the following image:
pustule
Describe the following image:
- various small circumscribed elevations
- pus filled
An area that is usually distinguished by a color different form that of the surrounding tissue- it is flat and does not protrude above the surface of the normal tissue:
macule
Diagnose the following image:
macule
Describe the following image:
- flat area different in color from surrounding tissue
A small circumscribed lesion usually less than 1cm in diameter that is elevated or protrudes above the surface of normal surrounding tissue:
papule
Diagnose the following image:
papule
Describe the following image:
- small circumscribed lesion
- less than 1cm in diameter
- elevated above surface/ protrudes
A circumscribed lesion usually greater than 1cm in diameter that is elevated or protrudes above or below the surface of normal surrounding tissue:
nodule
Diagnose the following image:
nodule
Describe what can be seen in the following image:
- circumscribed lesion greater than 1cm in diameter
- elevated/protrudes avocet the surface
Attached vy a stem-like stalk or base:
pedunculated
(remember this is an incomplete description alone)
Describe the attachment seen in this image:
pedunculated
Describing the base of lesion that is flat stem-like
sessile
(remember this is an incomplete description alone)
Describe the attachment seen in this image:
sessile
A loss of continuity of the epithelium that penetrates to the underlying connective tissue:
ulcer
Diagnose the lesion in this image:
ulcer
Describe the lesion in this image:
- Loss of continuity of the epithelium
- Penetrates to the underlying connective tissue
A patch or differentiated area on a body surface:
plaque
Diagnose this image:
plaque
(left image = erythematous plaque)
(right image= leukoplakia)
Describe the surface texture seen in this image:
Corrugated (wrinkled)
“wrinkled”
corrugated
A cleft of grove, normal otherwise, showing prominent depth:
fissure
Describe the surface texture seen in this image:
fissured
Resembling small nipple-shaped projections or elevations found in clusters:
papillary
Describe the surface texture seen in this image:
papillary
Surface texture may be described as: (6)
- smooth
- rough
- folded
- corrugated
- fissured
- papillary
Describe the surface textures seen in this image:
smooth
Describe the surface textures seen in this image:
rough
Describe the surface textures seen in this image:
folded
Clinical presentation of radiographic lesions may be categorized as: (3)
- radiolucent
- mixed
- radiopaque
Clinical presentation of mucosal and soft tissue lesions may be categorized as: (8)
- colored
- white
- red
- red/white
- systemic hyperkeratosis- genodermatosis + syndromes
- soft tissue masses
- ulcers/vesiculo-erosive
- papillary
Once you have a list of differential diagnosis, what might you do? (5)
- alter environment
- observe (not active neglect)
- treat
- biopsy
- refer
All a differential diagnosis is:
an educated guess
What is the take home message of differential diagnosis?
recognition and action are the most important