Lentigo maligna Reflectance confocal microscopy Diagnostic accuracy
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: i. Patients with histologically confirmed primary LM. ii. Patients with histologically confirmed recurrent LM, defined by a clinical recurrence within 10mm from the previously treated area following (non-)surgical treatment ¡Ý 12 months ago. iii. Lesion localization in the head and neck (i.e. supraclavicular/above the 7th cervical vertebrae). iv. Patients eligible for surgical excision. v. Anatomic localization of the lesion allows evaluation by HH-RCM. vi. Patient age ¡Ý 18 years and is willing and able to comply with the study requirements and give written informed consent.
Exclusion criteria
Exclusion criteria: i. Patients with histologically confirmed LMM according to the WHO 2011 criteria (WHO ICD-O-3 8742/3) as assessed by standard of care. ii. Patients with incomplete excised LM or histological confirmed recurrence within < 12 months following (non-)surgical treatment. iii. Lesion localization outside the head and neck (i.e. infraclavicular/below the 7th cervical vertebrae). iv. Patients ineligible for surgical excision (e.g. cosmetic/functional ramifications, co-morbidity, patient refusal). v. Lesion localization is not accessible by HH-RCM.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To determine the diagnostic accuracy of HH-RCM in the presurgical margin delineation for primary and recurrent LM in the head and neck treated by conventional surgical excision. | — |
Secondary
| Measure | Time frame |
|---|---|
| i. To evaluate the influence of HH-RCM on the surgical management of LM. ii. To determine the long-term effect of HH-RCM assisted margin delineation on treatment-failure, defined by histopathological confirmed recurrences and/or the development of invasive melanoma. i. To evaluate patient satisfaction with the use of HH-RCM in the management of LM. | — |