Intro to Path and Differential Diagnosis Flashcards
What are the steps to differential diagnosis?
- Recognition
- Describe the lesion
- Patient Contribution
- Possibilites
- Probabilities
What should you consider about the patient when considering diagnosis?
- Age, gender, race
- Current medical conditions and meds
- Supplements
- Social Hx
- Oral habits
- Past medical history (surgery, chemo, radiation, previous treatment)
What are the basic ways to describe a lesion?
- Size
- Shape
- Color
- Borders
- Texture
- Consistency
- Location
What is a vesicle?
A small circumscribed elevated lesion usually less than 1cm in diameter, usually contains serous fluid
What is a bulla?
Circumscribed elevated lesion that is around 1cm in diameter, usually contains serous fluid
What is a pustule?
Various sized circumscribed elevations containing pus
What is a macule?
An area that is usually distinguished by a color different from that of the surrounding tissue: It is flat and does not protrude above the surface of the normal tissue.
What is a papule?
A small circumscribed lesion usually less than 1cm in diameter that is elevated or protrudes above the surface of normal surrounding tissue.
What is a nodule?
A circumscribed lesion usually greater than 1cm in diameter that is elevated or protrudes above or below the surface of normal surrounding tissue.
What is pedunculated?
Attached by a stem-like or stalk base
What is sessile?
Describing the base of a lesion that is flat
What is an ulcer?
A loss of continuity of the epithelium that penetrates to the the underlying connective tissue
What is a plaque?
A patch or differentiated area on a body surface
What is a corrugated surface texture?
wrinkled
What is a fissure surface texture?
A cleft or grove, normal otherwise, showing prominent depth
What is a papillary surface texture?
Resembling small nipple-shaped projections or elevations found in clusters
vesicle
bulla
pustule
macule
papule
nodule
How is this attached?
pedunculated
How is this attached?
sessile
