The diagnosis of skin disease requires both clinical and pathological expertise, which subsequently define the laboratory tests required. Central to these investigations is the biopsy, allowing key architectural features of the skin disease to be analysed, emphasizing the importance of dermatopathology to the treatment of skin disorders. In addition, and frequently of vital importance, is a range of laboratory procedures and tests that sit outside the realms of routine dermatopathology and which assist in the diagnosis and aid in the patient management of skin disease.

This special issue of the journal will include a number of review papers, original articles and short innovation communications. These articles will explore why dermatopathology is often key in the diagnosis of skin disease and also explain its relationship and important links to other specialised laboratory services that help define and classify cutaneous disorders.

Topics will include:
- Immunodermatology
- Mycosis
- Molecular diagnostic methods
- Innovations in dermatopathology
- Unusual applications of Mohs micrographic surgery
- Predictive and prognostic markers of melanoma
- Immune checkpoint inhibition in melanomas
- Dermatopathology in alopecia.

We look forward to receiving manuscript submissions on these areas, and other related topics. All manuscripts are published once fully reviewed, ensuring your work is accessible as soon as possible.

Keywords: dermatopathology, immunodermatology, mycosis, histology, skin disease, Mohs surgery, melanoma, alopecia