skin tumors & nevi by: dr. kazhan ali tofiq kadir dr. kazhan ali tofiq kadir april 2014 april...
TRANSCRIPT
![Page 1: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/1.jpg)
Skin tumors & nevi
By: Dr. Kazhan Ali Tofiq
Kadir April 2014
![Page 2: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/2.jpg)
Benign skin tumors:Seborrheic Keratosis
More common in the elderly
Often pigmented Variable size Stuck on“Barnacle-
like” appearance Usually
asymptomatic
![Page 3: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/3.jpg)
Keratoacanthoma Rapidly evolving
tumor, often in the matter of weeks, possibly of viral origin
Composed of keratinizing squamous cells
More common in fair skinned, elderly people
May resolve spontaneously over a period of 2 to 12 months
It can undergo malignant changes, therefore removal is recommended.
![Page 4: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/4.jpg)
Acrochordon (Skin tags)
Occur in approximately 25% of males and females
Occur in the axilla, neck and inguinal region
Increase with age beginning the 20s up into the 50s
Few to multiple
![Page 5: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/5.jpg)
Benign Tumors Derived from the
Epidermal Appendages:
Epidermoid Cyst Common, affecting
young and middle age adults
Usually seen on the head, neck and trunk
Often can identifiy a punctum
Cyst contains keratin
![Page 6: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/6.jpg)
Sebaceous Hyperplasia
Found on the face Singular to
multiple in number Usually 2-3mm up
to 6mm with umbilication
Often begin to appear in the 30s and increase with age
![Page 7: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/7.jpg)
Syringomas
Sweat duct tumors More common in
females May first appear in
adolescence, but more often in the third decade
Found around eyelids and are skin colored to yellow in appearance
![Page 8: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/8.jpg)
Benign Melanocytic
Tumors
NevusA benign cluster of melanocytic cells arising as a result of
proliferation of melanocytes at the dermo-epidermal junction. These may all remain in contact with the basal layer (the junctional nevus)
or may become dettached from the basal layer and lie free in the dermis (the compound and
intradermal nevus).
![Page 9: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/9.jpg)
Halo Nevus
A pigmented nevus with surrounding depigmented zone
Nevus is usually compound or intradermal
May be single or multiple
Usually on the trunk Mostly develop in
teenagers No tx indicated.
![Page 10: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/10.jpg)
Blue Nevus
An area of blue-black dermal pigmentation produced by an aberrant collection of pigment producing melanocytes
The brown pigment absorbs the longer wavelength of light and scatters blue light (Tyndall effect)
Extend into the deep dermis, often occur on extremities and the dorsum of the hand
![Page 11: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/11.jpg)
Benign Tumors Derived from
Mesodermal Tissue: Dermatofibroma Can occur on any
part of the body, most common on the lower extremities, to a lesser degree on the upper extremities and trunk
May be single or multiple
Usually pink or brown
Commonly 6mm or less
Hard consistency
![Page 12: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/12.jpg)
Fibrous Papule
Small facial papule with a fibrovascular content
Usually seen on or next to the nose Usually singular but on occasion can be
multiple
![Page 13: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/13.jpg)
Keloid
An exaggerated reparative fibroblastic response to injury of the skin
Genetic tendency Most commonly
found on the ears, neck, jaw line, shoulders, upper back and anterior chest .
![Page 14: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/14.jpg)
Pyogenic Granuloma
A vasular nodule that develops rapidly, with a glistening moist surface
Often may appear at a site of recent trauma
Composed of proliferating capillaries in a loose stroma
Bleeds easily
![Page 15: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/15.jpg)
Premalignant Tumors:Actinic Keratosis
Hyperkeratotic lesions occurring in sun exposed adult skin
May exist in a premalignant state for years
Often begin as an area of increased vascularity with the surface becoming rough
May progress to squamous cell carcinoma
![Page 16: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/16.jpg)
Squamous Cell Carcinoma in situ
(Bowen’s Disease) A persistent,
progressive, nonelevated, red, scaly or crusted plaque
An intraepidermal proliferation on exposed and nonexposed areas of the body
Often mistaken for eczema or psoriasis
![Page 17: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/17.jpg)
17
Epidermal Malignancies:What is Skin Cancer?
Skin cancer is the most common of all cancers.
Most skin cancers are: slow-growing
easy to recognize
relatively easy to treat when detected early
Most skin cancers are caused by too much exposure to ultraviolet (UV) rays, mostly from the sun but also from tanning beds.
![Page 18: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/18.jpg)
Basal Cell Carcinoma
Most common form of skin cancer
Usually appears on sun damaged skin
Pearly appearance with superficial telangiectasias
Rarely metastasizes
Derived from basal cell layer of the epidermis
![Page 19: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/19.jpg)
Superficial Basal Cell Carcinoma
![Page 20: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/20.jpg)
Pigmented Nodular Basal Cell Carcinoma
![Page 21: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/21.jpg)
Sclerosing Basal Cell Carcinoma
![Page 22: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/22.jpg)
Squamous Cell Carcinoma
Often in older fair skinned persons
Hyperkeratotic and often ulcerates
SCC is separated into two groups based on malignant potential
![Page 23: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/23.jpg)
Malignant Melanoma MM
The ABCDE of melanoma A Asymmetry B Border irregularity C Colour variation D Diameter over 6mm E Evolving (enlarging or
changing)
![Page 24: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/24.jpg)
In Situ Malignant Melanoma
Melanoma cells confined to the epidermis
Lack in invasion may persist for months to years
Simple excision is often curative
![Page 25: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/25.jpg)
Superficial Spreading Melanoma
Most common in middle age
Develops anywhere on the body, back in both sexes and legs in females
Haphazard combination on colors but may be uniformly brown or black
![Page 26: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/26.jpg)
Acral Lentinginous Melanoma
Most common in blacks and orientals
Appears on the palms, soles terminal phalanges and mucous membranes
The tumor is very aggressive and metastasizes early
![Page 27: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/27.jpg)
Nodular Melanoma Occurs in the fifth or
sixth decade More frequent in
males with a ratio of 2:1
Found anywhere on the body
Most frequently misdiagnosed because it can resemble a blood blister, hemangioma, dermal nevus or polyp
![Page 28: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/28.jpg)
Amelanotic Melanoma
![Page 29: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/29.jpg)
Treatment: Treatment options for skin cancers
include surgery, chemotherapy, photodynamic therapy, radiation therapy and biological therapy.
![Page 30: Skin tumors & nevi By: Dr. Kazhan Ali Tofiq Kadir Dr. Kazhan Ali Tofiq Kadir April 2014 April 2014](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649d8b5503460f94a71996/html5/thumbnails/30.jpg)
Thank You