Exam 1: Gross Descriptions and Diagnoses Flashcards
What is the difference Between description and morphological Dx.
Description describes what you see. MDx interprets the description
List some reasons to describe lesions?
- helps you think through the lesion
- part of medical record
- gives lots of info to lab
What are the 8 features of a description?
- Number
- Size
- Location
- Distribution
- Shape
- Color
- Consistency
- Margins/surface
one isolated lesion
focal
numerous similar lesions that can be of variable size
multifocal
lesion throughout a large portion of the effective area
diffuse
multiple foci that are toching
multifocal-coalescing
type of multifocal where there are numerous pin-point foci
Miliary
What is the route of spread of multifocal lesions?
embolic/hematogenous route
what is the route of spread of locally extensive lesions?
local introduction via penetrating wound or anatomic pathway
What is the route of spread of symmetrical lesions?
systemic/metabolic cause of lesion
What does a geometrically shaped lesion tell you?
lesion involves vasculature
What does a lesion whith straight lines tell you?
lesion is following an anatomic structure
blood vessel, bronchiole, nerve
What does a raised lesion tell you?
something has been added
edema, neoplastic/hyperplastic cells
What does a depressedlesion tell you?
something has been lost (necrosis) or the tissue has contracted (CT)
What can it tell you?
Can spread with a knife.
Necrosis and exudate
What can it tell you?
Can’t Spread with a knife
Viable tissue and cells
What can it tell you?
Hard
Bone
What can it tell you?
Gritty
Mineral
What can it tell you?
Lesion has well demarcated margins.
lesion represents a diff. tissue (tumors)
What can it tell you?
Poorly demarcated lesion margins.
The lesion and adjacent tissue may be similar
What are the 5 features of a MDx?
- Organ
- Pathological process
- Distribution
- Chronicity
- Severity
What feature of a MDx separates it from a description?
pathological process
list some examples of pathological processes of a MDx
- Degeneration/necrosis
- Inflammation and repair
- circulatory disorder
- disorder of growth
- deposits and pigmentations
What is the difference between a MDx and an Etiologi Dx
EDx includes cause
