Plastics/Derm Flashcards
1
Q
What do you do if you suspect a neaveus is malignant ?
A
Suspicious lesions should undergo excision biopsy. !!
The lesion should be removed in completely as incision biopsy can make subsequent histopathological assessment difficult.
2
Q
what are Merkel cells ?
A
Merkel cells are found in the basal layer of the epidermis, they help us sense light touch
3
Q
what are the features of merkel cell tumours ?
A
- Usually presents on elderly, sun damaged skin
-The lesions consist of sheets and nodules of small hyperchromatic epithelial cells with high rates of mitosis and apoptosis - Lymphovascular invasion is commonly seen
-Surgical excision is first line
4
Q
spot diagnosis
concentric layers of abnormal squamous cells surrounding a core of keratinised, dead skin cells
A
keratin pearls
5
Q
spot diagnosis
pre cancerous lesion caused by sun damage
A
Actinic keratosis
