Pathology

Roots & Lesions

Pathology roots & suffixes

• Ung/o= nail• Py/o = pus• Scler/o= hard• Rhytid/o= wrinkle• Leuk/o= white

• -rrhea = discharge• -ectomy=surgical

removal• -genic= producing• -phagia=eating• -ia= infection

Myc/o= fungus, mycosis

• Tinea capitas- ringworm• Tinea pedis- athlete’s foot

Figure 7-14 Tinea pedisSPL/Photo Researchers, Inc.

Figure 7-6 Types of skin lesions.

Pathology – Surface Lesions

cyst fluid-filled sac under skin, not red

Pathology- skin lesion

fissure cracklike lesion on skin

Pathology – Surface Lesions

laceration torn or jagged wound

Pathology – Surface Lesions

macule flat, discolored spot on skin, melanin spot

Comedo- hardened sebum in follicle, acne

Acne- infection of sebaceous glands & hair follicles creating papules & pustules.

papule small, solid raised spot smaller than 0.5 cm, red

pustule raised spot on skin containing pus, red/white top

Table 7-1 Comparison of Acne Vulgaris and Acne Rosacea

Pathology – Surface Lesions

vesicle small, fluid-filled, raised spot; blister

Figure 7-13 ShinglesGill/Custom Medical Stock Photo, Inc.

Pathology of the Skin

abscess collection of pus in skin

wheal small, round, swollen area; typical of allergic skin reaction

Figure 7-11 Decubitus ulcerCustom Medical Stock Photo, Inc.

ulcer open sore in skin