Improving Hairdressers' Knowledge and Self-efficacy to Detect Scalp and Neck Melanoma by Use of an Educational Video

Diagnosis and Management of Melanoma of the Scalp: A Review of the Literature

Cutaneous melanoma is a public health issue and the head and neck region is of particular interest, despite accounting for only 9.0% of the total body surface, it harbours 20% of melanoma cases. Data from the literature show that scalp melanomas (SM) carry high mortality rates, with a 10-year survival rate of 60% which lead them to be named as the “invisible killer”. Moreover, SMs are more common in the elderly than in young population, and they occur six times more frequently in men than in women. This is probably related to the higher incidence of androgenetic alopecia and a higher cumulative and intermittent ultraviolet damage on the scalp. Histologically, SM is a heterogenous group, including lentiginous melanoma (LM), desmoplastic melanoma, superficial spreading and nodular melanoma. Thin melanomas tend to display an atypical network or pseudo-network and regression in dermoscopy. Blue-white veil, irregular pigmented blotches and an unspecific pattern are most commonly detected in thick lesions. On reflectance confocal microscopy (RCM), the most frequent pattern is irregular meshwork, but also ringed and disarranged pattern have been described. Differential diagnosis includes benign solar lentigo, actinic keratoses, lichen planus like keratosis, melanocytic nevi and blue nevi. All suspicious lesions should be biopsied; therefore, an excisional biopsy with 2 mm margins is usually the best option. The management of SM is the same as for melanoma on other body sites. However, sentinel node biopsy tends to be more challenging, as well as achieving adequate excision margins of the primary tumor. In this review, we summarize clinical, pathologic, dermoscopic and RCM features of SM, and focus on its epidemiology, risk factors and best management options.

Skin cancer knowledge, attitudes, and practices among non-medical skin care professionals: A narrative review of cross-sectional and interventional studies

BACKGROUND

Skin cancers are the most common malignancies in the United States. Total body skin examination by a physician, especially a dermatologist, is the gold standard for detecting suspicious lesions that may require further evaluation. Non-medical professionals (NMPs) including massage therapists, estheticians, hairdressers, and cosmetologists have the unique opportunity to frequently examine their client's skin outside of a clinical setting. By evaluating their knowledge of and comfort with evaluation of suspicious lesions, multiple studies have gauged the utility of patient encounters with NMPs for skin cancer detection. Several studies have also focused on assessment of intervention strategies for assessing and improving NMPs ability to detect suspicious lesions and to refer for physician evaluation when necessary.

AIMS

To conduct a narrative review of skin cancer knowledge, attitudes, and practices among NMPs.

PATIENTS/METHODS

A systematic search of the databases yielded 16 studies for review. A total of 8 cross-sectional studies examined the knowledge and attitudes of NMPs toward skin evaluation, and 8 studies assessed interventional strategies for improving NMPs' ability to assess skin lesions for consideration of physician referral.

RESULTS

This review finds that NMPs are open to the idea of examining the exposed body surfaces relevant to their work with clients and are willing to refer for physician evaluation when needed. Multiple interventional strategies have demonstrated success with educating NMPs on the importance of skin surveillance and the characteristic physical examination findings associated with skin cancers.

CONCLUSION

Strengthening the readiness of NMPs to examine their client's skin offers an opportunity to reduce time to skin cancer diagnosis, improve patient outcomes, and lower healthcare-associated costs of skin cancer treatment.

Melanomas of the scalp: is hair coverage preventing early diagnosis?

BACKGROUND

Scalp melanomas are usually thicker and show worse prognosis than other sites and other head and neck melanomas. One hypothesis to explain this aggressive behavior could be diagnosis delay attributed to hair concealment of lesions.

METHODS

Primary melanomas of the scalp diagnosed over two decades at four reference centers in Australia and Italy were included. Hair coverage and visibility of the lesions were assessed on preoperative photographic documentation by two investigators and correlated with some prognostic factors (Breslow thickness, mitotic rate, and ulceration). Patients records and pathology reports provided clinical and histological data.

RESULTS

The majority of 113 melanomas included were located on easily visible areas of the scalp - hairless scalp (49%) or hairline (15%). The remaining ones (36%), considered to be hair-covered, showed more frequently thinning of hair (63%) than a dense hair coverage (37%). Melanomas of "hairy scalps" were more frequently invasive (81%) and had higher median Breslow (0.8 ± 1.3 mm) than those arising on bald scalps or areas with thinning of hair (43%; 0 ± 0.6 mm), P = 0.004. However, when considering only the invasive cases (n = 55), Breslow thickness and mitotic rate were not statistically different between concealed and easily visible areas. Melanomas detected by a doctor were thinner than those first noticed by the patient, relatives, or a hairdresser (P < 0.001).

CONCLUSIONS

Most scalp melanomas arose on easily visible areas, which are more prone to ultraviolet damage. Hair-covered ones, despite rare, could be overlooked during examination. Proactive screening of the scalp area should be encouraged.