Biophysical basis of skin cancer margin assessment using Raman spectroscopy
| Autor: | Jason S. Reichenberg, Katherine R. Sebastian, Matthew C. Fox, Xu Feng, Fabiana C.P.S. Lopes, Mia K. Markey, James W. Tunnell |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Sebaceous gland
Pathology medicine.medical_specialty medicine.medical_treatment 01 natural sciences Article 010309 optics 03 medical and health sciences Dermis 0103 physical sciences medicine Mohs surgery Basal cell carcinoma 030304 developmental biology 0303 health sciences integumentary system business.industry medicine.disease Hair follicle Atomic and Molecular Physics and Optics Autofluorescence medicine.anatomical_structure Histopathology Skin cancer business Biotechnology |
| Popis: | Achieving adequate margins during tumor margin resection is critical to minimize the recurrence rate and maximize positive patient outcomes during skin cancer surgery. Although Mohs micrographic surgery is by far the most effective method to treat nonmelanoma skin cancer, it can be limited by its inherent required infrastructure, including time-consuming and expensive on-site histopathology. Previous studies have demonstrated that Raman spectroscopy can accurately detect basal cell carcinoma (BCC) from surrounding normal tissue; however, the biophysical basis of the detection remained unclear. Therefore, we aim to explore the relevant Raman biomarkers to guide BCC margin resection. Raman imaging was performed on skin tissue samples from 30 patients undergoing Mohs surgery. High correlations were found between the histopathology and Raman images for BCC and primary normal structures (including epidermis, dermis, inflamed dermis, hair follicle, hair shaft, sebaceous gland and fat). A previously developed model was used to extract the biochemical changes associated with malignancy. Our results showed that BCC had a significantly different concentration of nucleus, keratin, collagen, triolein and ceramide compared to normal structures. The nucleus accounted for most of the discriminant power (90% sensitivity, 92% specificity - balanced approach). Our findings suggest that Raman spectroscopy is a promising surgical guidance tool for identifying tumors in the resection margins. |
| Databáze: | OpenAIRE |
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