Neoplasms

(Growths)

Neoplasms1. Moles

Pigmented Pigmented MolesMoles

•Benign growth ofMelanocytes

MolesMoles

Neoplasms2. Warts

WARTS!!!WARTS!!!• Caused by Human Caused by Human

Papillomavirus (HPV)Papillomavirus (HPV)

WARTS!!!WARTS!!!• Caused by HPVCaused by HPV

WARTS!!!WARTS!!!• Caused by HPVCaused by HPV

WARTS!!!WARTS!!!• Foot or Plantar WartsFoot or Plantar Warts

Neoplasms3. Skin Cancer

Skin Cancer

•Most common cancer–20% will develop one

•Benign – does not spread to other parts

Skin Cancer

• Malignant – spreads to other organs–Metastasis – process of spreading

Skin Cancers

• UV radiation

Sun-induced

A. Basal Cell Carcinoma

• Basal Layer• Least malignant• Most common

Basal Cell Carcinoma

• Invades dermis and hypodermis

Basal Cell Carcinoma

Shiny dome-shaped nodules

Basal Cell Carcinoma

Mainly in fair- complexions

Basal Cell Carcinoma

Tx – Surgical RemovalCure rate – 99%

B. Squamous Cell Carcinoma

•2nd Most Common• Stratum granulosum• Scaly, reddened, and raised

border

Squamous Cell Carcinoma

Squamous Cell Carcinoma

•If removed, usually complete cure

Squamous Cell Carcinoma

Metastasis can occur

C. Malignant Melanoma

•Cancer of Melanocytes• ~5 % of skin cancers

Malignant Melanoma

• Numbers increasing•Prognosis: Poor• Most deadly of 3

–50% survival w/ treatment

• Rapid metastasis

Malignant Melanoma

• Wherever there is melanin

Malignant Melanoma

• Look for new moles or pigmented spots that appear–ABCD rule for recognizing melanoma

A – B – C – Ds of A – B – C – Ds of MelanomaMelanoma

•AAsymmetrical–2 sides do NOT match

A – B – C – Ds of A – B – C – Ds of MelanomaMelanoma

•BBorder– Uneven edges

A – B – C – Ds of A – B – C – Ds of MelanomaMelanoma

•CColor change–Spot contains different colors

A – B – C – Ds of A – B – C – Ds of MelanomaMelanoma

•DDiameter –Spot larger than 5mm (pencil eraser)