Self Assessment Quiz 4

1.

Does this lesion display a symmetrical pigment pattern?

2.

Based on the Chaos and Clues algorithm, what is your summation of this lesion?

3. The following devices are used for skin analysis.

4. A clinicians role is to “diagnose” benign and malignant lesions using dermatoscopy.

5. When analyzing lesions we look at the following features 

6. If a lesion displays dermatoscopic asymmetry, the clinician can possibly –

7. Lentigo are a hyperpigmentation process caused from sun exposure, ageing processes and genetic predisposition. Which of the following features can be associated with senile lentigo of the face?

8. Basal cell carcinomas (BCCs) are the slowest growing skin cancer. The features consistent with basal cell carcinoma are serpiginous vessels in a branching arrangement, pearlised shine (shine sign), sticky fibre sign and background erythema. The following image has another feature. This is called –

9. Melanocytic lesions are –

10. Naevi or moles are determined by the location of the melanocyte nests. The most superficial naevus is –

11. Pigment patterns are only associated with melanocytic lesions.

12. Polymorphous vessels in a lesion are a sign of malignancy.

13. A reticulated pigment network is consistent with a junctional naevus. What is the most common pattern in an intradermal naevus?

14.

Read the following statement from an article and answer the following questions.

“Laser therapy has become a routine procedure in dermatological practice and is frequently also used for pigmented lesions. Few reports exist of melanomas diagnosed in lesions previously treated by laser therapy. Between 2007 and 2014, we identified 11 patients who presented to our department with melanoma diagnosed in a region previously treated by laser therapy. The course of events until diagnosis of melanoma was assessed as well as patient outcome including treatment for disease progression…We conclude that laser treatment of pigmented lesions can complicate the diagnosis of melanoma and lead to diagnosis delay with potentially fatal consequences. Considering the risk, we believe laser therapy for pigmented lesions should either be avoided entirely or at a minimum performed only after prior histological assessment.”  Delker, S., Livingstone, E., Schimming, T., Schadendorf, D., & Griewank, K. G. (2016). Melanoma diagnosed in lesions previously treated by laser therapy. The Journal of Dermatology, 44(1), 23-28. doi:10.1111/1346-8138.13484

Question :

Would dermatoscopy be helpful in the initial consultation process prior to laser therapies?

15.

Read the following statement from an article and answer the following questions.

“Laser therapy has become a routine procedure in dermatological practice and is frequently also used for pigmented lesions. Few reports exist of melanomas diagnosed in lesions previously treated by laser therapy. Between 2007 and 2014, we identified 11 patients who presented to our department with melanoma diagnosed in a region previously treated by laser therapy. The course of events until diagnosis of melanoma was assessed as well as patient outcome including treatment for disease progression…We conclude that laser treatment of pigmented lesions can complicate the diagnosis of melanoma and lead to diagnosis delay with potentially fatal consequences. Considering the risk, we believe laser therapy for pigmented lesions should either be avoided entirely or at a minimum performed only after prior histological assessment.”  Delker, S., Livingstone, E., Schimming, T., Schadendorf, D., & Griewank, K. G. (2016). Melanoma diagnosed in lesions previously treated by laser therapy. The Journal of Dermatology, 44(1), 23-28. doi:10.1111/1346-8138.13484

Question :

The article referred to in this question is valuable reading for any clinician. The reason for this is because –