The marked increase in the incidence of melanoma coupled with the rapid drop in the survival rate after metastasis has promoted the investigation into improved diagnostic methods for melanoma. High-frequency ultrasound (US), optical coherence tomography (OCT), and photoacoustic imaging (PAI) are three potential modalities that can assist a dermatologist by providing extra information beyond dermoscopic features. In this study, we imaged a swine model with spontaneous melanoma using these modalities and compared the images with images of nearby healthy skin. Histology images were used for validation.
Imaging technologies are constantly being developed to improve not only melanoma diagnosis, but also staging, treatment planning, and disease progression. We start with a description of how melanoma is characterized using histology, and then continue by discussing nearly two dozen different technologies, including systems currently used in medical practice and those in development. For each technology, we describe its method of operation, how it is or would be projected to be most commonly used in diagnosing and managing melanoma, and for systems in current use, we identify at least one current manufacturer. We also provide a table including the biomarkers identified by and main limitations associated with each technology and conclude by offering suggestions on specific characteristics that might best enhance a technology’s potential for widespread clinical adoption.
Caveolae are flask‐shaped invaginations of the cell membrane rich in cholesterol and sphingomyelin, with caveolin proteins acting as their primary structural components that allow compartmentalization and orchestration of various signalling molecules. In this review, we discuss how pleiotropic functions of caveolin‐1 (Cav1) and its intricate roles in numerous cellular functions including lipid trafficking, signalling, cell migration and proliferation, as well as cellular senescence, infection and inflammation, are integral for normal development and functioning of skin and its appendages. We then examine how disruption of the homeostatic levels of Cav1 can lead to development of various cutaneous pathophysiologies including skin cancers, cutaneous fibroses, psoriasis, alopecia, age‐related changes in skin and aberrant wound healing and propose how levels of Cav1 may have theragnostic value in skin physiology/pathophysiology.
28 February 2019 in International Journal of Dermatology
BACKGROUND: Mohs micrographic surgery (MMS)-associated anxiety is an important issue that remains poorly discussed. Identifying risk factors for MMS-associated anxiety will better equip physicians to manage patients' preoperative anxiety and result in improved patient satisfaction and outcomes. OBJECTIVE: This study aims in identification of risk factors that may play a role in MMS-associated anxiety among patients with nonmelanoma skin cancer. METHODS: A cross-sectional case series was conducted among MMS patients collect information on patient demographics and surgical locations and to measure perioperative anxiety and quality of life (QoL). In addition, adjusted linear and logistic regression analyses were performed to identify potential risk factors that predict MMS-associated anxiety. RESULTS: Significant increases in perioperative anxiety were associated with the eyelid area compared with the noneyelid facial area and nonfacial area (p ≤ .05). Patients with graduate degrees exhibited less anxiety compared with ones who received less education (p ≤ .05). Higher perioperative anxiety was associated with a greater impact on QoL (p ≤ .05). CONCLUSION: This study identified that surgical location and the patient's educational level are 2 critical predicting factors for perioperative anxiety. Furthermore, perioperative anxiety could negatively affect a patient's quality of life and warrants further investigation into effective management.