Dermatology 3 Flashcards
Basal cell carcinoma is also known as?
rodent ulcers
What is the most common skin malignancy?
basal cell carcinoma
Basal cell carcinoma
Malignant tumour of _________ ________
Normally affects ______ ______ ____ individuals
Malignant tumour of epidermal keratinocytes
Normally affects middle aged-older individuals
RF for BCC
Risk factors include pale skin type, UV sun exposure,
immunosuppression, previous skin cancer, inherited syndromes
Common sites of BCC
Common sites include face, arms, legs (sun exposed areas)
Name the different types of BCC
Nodular
Superficial
Sclerosing
Pigmented
Which BCC is most common type on the face?
Nodular BCC
Which BCC tends to occur in younger patients?
Superficial
Which BCC is skincoloured waxy, scar-like ?
Sclerosing
Which BCC is brown, blue or greyish lesion that may resemble melanoma?
Pigmented
What is the managemenf of BCC
• Surgical excision is usual treatment of choice - allows histological examination of
the tumour and margins
• Radiotherapy when surgery is inappropriate
• Topical treatment (imiquimod cream) or photodynamic therapy for superficial
subtype
• Prognosis is excellent especially for smaller lesions - locally invasive if untreated
but metastatic spread is extremely rare
• High risk of developing further lesions (~50% ppl develop further lesion within 5
years) and affected individuals at ^ risk of developing other forms of skin cancer
Which skin malignacy is most common in black people?
Squamous Cell Carinoma
TRUE OR FALSE
BCC
Usually grow over weeks – months, can be painful, often ulcerated
FASLE
SCC
RF for SCC
Risk factors include UV sun exposure, (HPV infection in Black
people), immunosuppression and smoking (particularly SCC of lips)
Common sites SCC
Most SCCs are found on sun-exposed sites, particularly the face,
lips, ears, hands, forearms, lower legs & anogenital region in Black
people
Management of SCC
- Surgical excision - treatment of choice
- Radiotherapy - for large, non-resectable tumours
- Early stage tumours >90% 5 year survival
- Approximately 10% rate of metastasis overall
________ ____– excessive
keratin production results in a
hard horn; this can overlie SCC,
pre-cancerous lesions or warts
Cutaneous horn – excessive
keratin production results in a
hard horn; this can overlie SCC,
pre-cancerous lesions or warts
______________ – a rapidly
growing keratinising skin nodule
which can look identical to SCC
but resolves without treatment.
Keratoacanthoma – a rapidly
growing keratinising skin nodule
which can look identical to SCC
but resolves without treatment.
Actinic Keratoses is also known as
solar keartosis
Where does Actinic Keratoses develop usually?
Develop in areas of sun damage (face,
backs of hands, bald scalps), usually
older individuals. Rarely seen in Black
people
Actinic Keratoses is a maligannt tumour
TRUE OR FALSE
FALSE
Premalignant - small minority (<1%)
may eventually progress to SCC
Actinic Keratoses treatment options?
• Treatment options include cryotherapy and curettage for individual lesions or topical 5-fluorouracil for field treatment
WHat is bowne’s disease
SCC in situ
Where is bowen’s disease found?
Commonly found on the lower leg or trunk, more
often in women.
