Characterization of Soft Tissue Lesions Flashcards
Define Excisional Biopsy
Remove entire lesion to view under microscope.
Define Incisional Biopsy
Remove part of lesion to view under microscope.
Define Differential Diagnosis
Short list of possible lesion diagnoses using available information and specifying which one is most likely.
Elevated fluid filled lesion
Blisterform
Elevated fluid filled lesion <5mm diameter
Vesicle
Elevated fluid filled lesion ≥5mm diameter
Bulla
Elevated fluid filled lesion with pus
Pustule
Elevated lesion with no fluid
Non-blisterform
Elevated non-fluid filled lesion <5mm diameter
Papule
Elevated non-fluid filled lesion ≥5mm diameter
Nodule
Slightly elevated non-fluid filled lesion with stuck or pasted on appearance
Plaque
Partial loss of epithelium
Erosion; can become an ulcer
Complete loss of epithelium
Ulcer
Properties of ulcers
Lamina propria undergoes necrosis & bacterial invasion
Inflammation
Yellow, white or grey
Variable size, number, border and depth
Epithelial lined pocket
Pit/fissure
Lesion at same level as surrounding mucosa
Flat lesion/macule
Intravascular distention of blood vessel lumen
Dilatation
Intravascular increase in number of blood vessels
Proliferation
Intravascular blanching of cells on slide
Diascopy test
Pinpoint extravascular lesions
Petechia
Diffuse extravascular bleed (bruise)
Ecchymosis (flat)
Localized discrete collection of blood
Hematoma (superficial or deep)
Ring-like appearance
Annular
Straight appearance
Linear