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Complementary Medicines
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1.
Int J Dermatol ; 63(4): 438-442, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38102859

ABSTRACT

Ginger is a traditional herb with medicinal properties. Although most commonly utilized as a spice, it has been used for various medicinal ailments for thousands of years. Over the past century, the anti-inflammatory, antioxidative, and antimicrobial properties of ginger have been increasingly studied. Ginger has been demonstrated to be beneficial for many conditions including dermatologic, gastrointestinal, neoplastic, and respiratory diseases. Herein, we examine the existing literature regarding the clinical uses of ginger with a focus on its dermatologic applications.


Subject(s)
Zingiber officinale , Humans , Antioxidants/pharmacology , Antioxidants/therapeutic use
2.
Int J Dermatol ; 62(7): 962-968, 2023 Jul.
Article in English | MEDLINE | ID: mdl-36880424

ABSTRACT

BACKGROUND: Dating back to the mid-1500s, maggot debridement therapy (MDT) has been a viable treatment modality for chronic wounds. In early 2004, the sterile larvae of Lucilia sericata received FDA approval for medical marketing for neuropathic, venous, and pressure ulcers, traumatic or surgical wounds, and nonhealing wounds that have not responded to standard care. However, it currently remains an under-utilized therapy. The proven efficacy of MDT begs the question if this treatment modality should be considered as a first-line option for all or a subset of chronic lower extremity ulcers. OBJECTIVE: This article aims to address the history, production, and evidence of MDT and discuss future considerations for maggot therapy in the healthcare field. METHODS: A literature search using the PubMed database was conducted using keywords, such as wound debridement, maggot therapy, diabetic ulcers, venous ulcers, among others. RESULTS: MDT reduced short-term morbidity in non-ambulatory patients with neuroischemic diabetic ulcers and comorbidity with peripheral vascular disease. Larval therapy was associated with statistically significant bioburden reductions against both Staphylococcus aureus and Pseudomonas aeruginosa. Faster time to debridement was achieved when chronic venous or mixed venous and arterial ulcers were treated with maggot therapy versus hydrogels. CONCLUSIONS: The literature supports the use of MDT in decreasing the significant costs of treating chronic lower extremity ulcers, with emphasis on those of diabetic origin. Additional studies with global standards for reporting outcomes are necessary to substantiate our results.


Subject(s)
Diabetic Foot , Diptera , Leg Ulcer , Animals , Humans , Debridement/methods , Diabetic Foot/therapy , Larva , Lower Extremity , Ulcer , Wound Healing
3.
Am J Clin Dermatol ; 24(2): 287-297, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36689103

ABSTRACT

The incidence of syphilis has been increasing in the USA since 2000. Notably, the coronavirus disease 2019 pandemic negatively impacted the public health efforts to contain the spread of sexually transmitted diseases including syphilis and congenital syphilis. Clinical manifestations of syphilis are predominantly mucocutaneous lesions, thus dermatologists are primed to recognize the myriad presentations of this disease. Primary syphilis is classically characterized by a painless transient chancre most often located in the genital area. Secondary syphilis typically manifests clinically as systemic symptoms in addition to a mucocutaneous eruption of which a variety of forms exist. Although less common in the era of effective penicillin treatment, late clinical manifestations of syphilis are described as well. In addition to recognition of syphilis on physical examination, several diagnostic tools may be used to confirm infection. Treponema pallidum spirochetes may be detected directly using histopathologic staining, darkfield microscopy, direct fluorescent antibody, and polymerase chain reaction assays. A table detailing the histopathologic features of syphilis is included in this article. Serologic testing, non-treponemal and treponemal tests, is the preferred method for screening and diagnosing syphilis infections. Two serologic testing algorithms exist to aid clinicians in diagnosing positive syphilis infection. Determining the correct stage of syphilis infection combines results of serologic tests, patient history, and physical examination findings. Using the current Centers for Disease Control and Prevention case definitions and treatment guidelines, a management algorithm is proposed here. Penicillin remains the pharmacological treatment of choice although specific clinical situations allow for alternative therapies. Syphilis is a reportable disease in every state and should be reported by stage according to individual state requirements. Screening recommendations are largely based upon risks encountered through sexual exposures. Likewise, sexual partner management includes evaluating and treating persons exposed to someone diagnosed with an infective stage of syphilis. Close clinical follow-up and repeat testing are recommended to ensure appropriate response to treatment. This guide will discuss the current epidemiology of syphilis and focus on practice aspects of diagnosis and management, including public health reporting.


Subject(s)
COVID-19 , Dermatology , Syphilis , Humans , Syphilis/complications , Syphilis/diagnosis , Syphilis/epidemiology , COVID-19/complications , Treponema pallidum , Penicillins/therapeutic use
4.
Arch Dermatol Res ; 315(3): 321-331, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36129522

ABSTRACT

Flavonoids are a class of plant polyphenols found in a variety of fruits, vegetables, teas, and flowers. These compounds are present in many common dietary sources, such as green tea, wine, pomegranates, and turmeric, and possess a broad spectrum of biological activity due to their unique chemical structure. Flavonoids exhibit antioxidant, anti-inflammatory, antiviral, and anticarcinogenic properties that have been widely studied as potential therapeutics for diseases ranging from Alzheimer's disease to liver disease. There is currently significant research into therapeutic benefits of flavonoids in various skin conditions as these compounds have been shown to absorb ultraviolet radiation and modulate cancer and inflammation signaling pathways. This review discusses the current research in the application of flavonoids in skin diseases (e.g., prevention of premature photoaging, prevention and treatment of skin cancer, and promotion of skin wound healing) and their proposed mechanisms to provide a basis for future basic and translational research of flavonoids as potential drugs in the prevention and treatment of skin disorders.


Subject(s)
Skin Diseases , Skin Neoplasms , Humans , Flavonoids/pharmacology , Flavonoids/therapeutic use , Phenols , Ultraviolet Rays , Skin Diseases/drug therapy , Skin Neoplasms/prevention & control , Antioxidants/pharmacology , Antioxidants/therapeutic use , Tea
5.
Altern Ther Health Med ; 29(4): 246-252, 2023 May.
Article in English | MEDLINE | ID: mdl-34264859

ABSTRACT

Trace elements (microminerals) play a role in many physiological functions, including hormone production and cellular growth. However, their importance in diagnosing and treating dermatologic disease has not been well examined. In this review, we discuss the functions, sources, and recommended requirements of each micromineral. In addition, we analyze the systemic and dermatological manifestations associated with micromineral imbalances. The pathogenesis of genodermatoses, such as Wilson disease, Menkes disease, acrodermatitis enteropathica, and allergic dermatitis, are also discussed. Included are studies examining the potential therapeutic role of zinc, selenium, and copper in inflammatory diseases, skin cancer, and photoaging.


Subject(s)
Acrodermatitis , Dermatology , Trace Elements , Humans , Trace Elements/therapeutic use , Zinc/therapeutic use , Copper , Acrodermatitis/diagnosis , Acrodermatitis/drug therapy
6.
Int J Dermatol ; 60(12): e493-e499, 2021 Dec.
Article in English | MEDLINE | ID: mdl-33899217

ABSTRACT

Nigella sativa (N. sativa) is a widely used medicinal herb with a rich cultural and religious history in Unani, Ayurveda, Chinese, and Arabic medicine. N. sativa contains many natural bioactive agents including alkaloids, saponins, alpha-hederin, and thymoquinone that contribute to its broad range of benefits as a diuretic, bronchodilator, antihypertensive, antidiabetic, and analgesic. In addition, N. sativa possesses antimicrobial, anti-inflammatory, and antineoplastic effects, making it an interesting potential therapy for the treatment of dermatological conditions. This article reviews the current literature surrounding the pharmacological effects of N. sativa for the treatment of acne vulgaris, melanoma, vitiligo, atopic dermatitis, plaque psoriasis, and wound healing.


Subject(s)
Dermatology , Nigella sativa , Plants, Medicinal , Anti-Inflammatory Agents , Humans , Plant Extracts/therapeutic use
7.
Int J Dermatol ; 60(2): 166-173, 2021 Feb.
Article in English | MEDLINE | ID: mdl-32815582

ABSTRACT

Melasma, a common cause for seeking dermatologic care, is a chronic condition of skin hyperpigmentation. With a poorly understood pathogenesis, and no universal cure, melasma is a challenge for many dermatologists. For decades, there has been investigation into the role of oxidative stress in melasma. In this literature review, we introduce the role of oxidative stress in melasma and discuss the function of various topical and oral antioxidant therapies for patients suffering from melasma. Numerous studies have shown efficacy of various antioxidant therapies for treatment of hyperpigmentation, and in this review, we focus primarily on those with less widespread use. Vitamin E, niacinamide, polypodium leucotomos, pycnogenol, grape seed extract, amino fruit acids, phytic acid, zinc, silymarin, Korean red ginseng powder, plant extracts, and parsley all have well-demonstrated evidence of antioxidant properties, and these substances have been studied in the context of skin hyperpigmentation. Although there is conflicting evidence of their therapeutic efficacy, the use of these naturally occurring substances is promising for patients and medical providers seeking alternative therapeutic options.


Subject(s)
Antifibrinolytic Agents , Hyperpigmentation , Melanosis , Antioxidants/therapeutic use , Humans , Melanosis/drug therapy , Vitamin E/therapeutic use
8.
Arch Dermatol Res ; 313(4): 291-293, 2021 May.
Article in English | MEDLINE | ID: mdl-32266531

ABSTRACT

There has been an exponential growth in the number of dermatologic procedures performed over the past two decades. This surge in procedural volumes is accompanied by increasing utilization of local anesthetics. A proper technique in administering local anesthesia is necessary to minimize pain and promote comfort, as it is often regarded as the most painful part of cutaneous procedures. Pain is a psychophysiological phenomenon that involves attention, cognitive appraisal, and emotion. Sensory feedback and anxiety are two important aspects of pain perception. This article aims to introduce a novel way that minimizes pain and discomfort associated with local anesthetics. It is the authors' experience that painless injection is achievable by keeping syringes/needles out of sight, proceeding with injection without pre-procedure warning, and engaging patients in a conversation or simple tasks.


Subject(s)
Anesthesia, Local/methods , Anesthetics, Local/administration & dosage , Dermatologic Surgical Procedures/adverse effects , Injections, Subcutaneous/methods , Pain/prevention & control , Anesthesia, Local/adverse effects , Feedback, Sensory/physiology , Humans , Injections, Subcutaneous/adverse effects , Injections, Subcutaneous/instrumentation , Injections, Subcutaneous/psychology , Needles/adverse effects , Pain/etiology , Pain/physiopathology , Pain/psychology , Pain Perception/physiology , Syringes/adverse effects
9.
Altern Ther Health Med ; 27(4): 41-49, 2021 Jul.
Article in English | MEDLINE | ID: mdl-33245705

ABSTRACT

BACKGROUND: Vitamins and their derivatives are used extensively in the field of dermatology to treat a range of conditions, both benign and malignant. Additionally, over the past decade, vitamin supplements have been heavily advertised for improving overall health. Due to the widespread use of vitamins and their derivatives for dermatologic conditions, a comprehensive review of the evidence is needed. OBJECTIVE: Here we review several of the well-established uses of vitamins A, B, C, and D in the management of dermatologic conditions ranging from acne vulgaris to malignant melanoma. Additionally, we examine the dermatologic consequences of both deficiency and excess of vitamins A, B, C, and D. Finally, we delve into newer applications for these vitamins and evaluate the evidence behind them. CONCLUSION: Vitamins, in both topical and oral forms, play a key role in treating many dermatologic conditions. Some of the newer applications of vitamins, such as the use of vitamin B3 for non-melanoma skin cancer prevention, vitamin B6 for prevention of chemotherapy-induced alopecia, and vitamin C as an adjuvant treatment for malignant melanoma, appear promising. Further data is needed to validate these findings. Additionally, many people use vitamin B7 for hair, skin, and nail health. There is evidence that supports vitamin B7 supplementation in patients with uncombable hair syndrome, brittle nail syndrome, and seborrheic dermatitis. Some studies Some studies have also demonstrated a benefit in healthy individuals, although other studies have shown a neutral effect. Further randomized controlled trials are needed. Likewise, the use of vitamin D for the treatment of atopic dermatitis has conflicting results and requires further investigation. New research continues to emerge regarding vitamin supplementation, and it is an important topic for dermatologists.


Subject(s)
Dermatologists , Vitamins , Ascorbic Acid , Dietary Supplements , Humans , Vitamin A/therapeutic use , Vitamin D , Vitamins/therapeutic use
10.
Int J Dermatol ; 60(9): 1070-1075, 2021 Sep.
Article in English | MEDLINE | ID: mdl-33128472

ABSTRACT

Bloodroot (Sanguinaria canadensis) is a plant, native to North America, containing bioactive compounds that interrupt biological processes. It has been around for centuries and is known for its medicinal properties. Today, naturopathic remedies are becoming more and more popular, especially for skin ailments. There are an alarming number of online vendors marketing their bloodroot-containing products as cures for skin cancer without any scientific evidence supporting such claims. Clinical data concerning the efficacy of bloodroot primarily come from case studies with unfavorable outcomes involving patients who self-treated with bloodroot-containing black salves. However, recent preclinical studies have concluded that sanguinarine, the active component of bloodroot, shows positive evidence of being an efficacious treatment for skin cancers at micromolar doses. This article reviews the mechanism of action of bloodroot as a skin cancer treatment, its misuse in clinical dermatology, and the FDA's stance on products containing bloodroot that are marketed and sold to laypersons. Members of the public should be made aware of the dangers of self-treating with bloodroot-containing products through effective communication and education by clinicians.


Subject(s)
Sanguinaria , Skin Neoplasms , Humans , Ointments , Plant Extracts/therapeutic use , Skin
11.
Cureus ; 12(6): e8936, 2020 Jun 30.
Article in English | MEDLINE | ID: mdl-32765982

ABSTRACT

Ichthyotherapy or fish pedicure is a unique form of biotherapy in which the species Garra rufa or doctor fish is used to exfoliate the skin and potentially aid in healing diseases, such as psoriasis. The practice has gained popularity since its origins in Kangal Fish Spring in Turkey; however, safety concerns, especially among immunocompromised patients, remain. This article reviews the studied dermatological benefits of ichthyotherapy and theorized mechanisms of action. Included are cases examining both infectious and noninfectious complications of this procedure. This review highlights the need to educate susceptible patients about possible adverse effects and the need for more studies assessing this procedure.

12.
Int J Dermatol ; 59(5): 543-550, 2020 May.
Article in English | MEDLINE | ID: mdl-31724740

ABSTRACT

Grover disease (GD) is a benign eruption that causes a papulovesicular rash on the trunk and proximal extremities. It often resolves spontaneously but can follow a more chronic and fluctuating course that may last several years. Although the etiology remains unknown, several associated triggers have been identified including heat and sweating, cool and dry air, renal failure, malignancy, and the initiation of several drugs. Since the disease tends to resolve on its own, management is aimed at disease prevention and symptomatic relief. First-line therapy includes topical steroids and vitamin D analogues with adjuvant antihistamines. In more severe cases that are refractory to less aggressive therapy, systemic corticosteroids, retinoids, and phototherapy may lead to successful resolution. Novel therapies are few and have little evidence but involve innovative use of light therapy and immune modulators. Herein, we review the literature and new trends of GD with a focus on established and novel treatments.


Subject(s)
Acantholysis/classification , Acantholysis/drug therapy , Ichthyosis/classification , Ichthyosis/drug therapy , Acantholysis/diagnosis , Acantholysis/etiology , Administration, Cutaneous , Administration, Oral , Darier Disease/diagnosis , Dermoscopy , Diagnosis, Differential , Drug Therapy, Combination/methods , Emollients/administration & dosage , Glucocorticoids/administration & dosage , Histamine Antagonists/administration & dosage , Humans , Hyperpigmentation/diagnosis , Ichthyosis/diagnosis , Ichthyosis/etiology , Pemphigus/diagnosis , Pemphigus, Benign Familial/diagnosis , Photochemotherapy/methods , Retinoids/administration & dosage , Skin/diagnostic imaging , Skin/drug effects , Skin/pathology , Skin Diseases, Genetic/diagnosis , Skin Diseases, Papulosquamous/diagnosis , Vitamin D/administration & dosage
13.
Dermatol Online J ; 25(5)2019 May 15.
Article in English | MEDLINE | ID: mdl-31220891

ABSTRACT

Ashy dermatosis is characterized by asymptomatic, symmetrically-distributed, gray-colored macules located on the trunk, neck, face, and upper extremities. The condition occurs most commonly in patients with Fitzpatrick phototype III-V skin. The etiology is unknown, but drug ingestion, infection, and genetic factors have been suggested to elicit ashy dermatosis. No gold standard treatments have been established yet. The most successful treatment to date has been clofazimine, although topical tacrolimus, oral dapsone, narrowband ultraviolet light B phototherapy, and isotretinoin have shown treatment success. Ashy dermatosis is primarily a cosmetic concern, but can be a very distressing condition, especially for dark skinned individuals. Therefore, an increase in clinician awareness and more studies are needed to further understand the etiology and treatment options for this disease. This review serves as a single source for clinicians to stay up-to-date regarding the history, clinical presentation, histology, pathogenesis, differential diagnosis, and management options for ashy dermatosis. It also suggests an alternative name that more appropriately encompasses the clinical and histopathologic features, while acknowledging our lack of understanding of its etiology: macular hyperpigmentation of indeterminate etiology.


Subject(s)
Hyperpigmentation/pathology , Skin/pathology , Anti-Inflammatory Agents/therapeutic use , Clofazimine/therapeutic use , Disease Management , Humans , Hyperpigmentation/diagnosis , Hyperpigmentation/drug therapy , Hyperpigmentation/physiopathology , Terminology as Topic
14.
Article in English | MEDLINE | ID: mdl-31233172

ABSTRACT

Hyperbaric oxygen therapy (HBOT) is used in the management of a wide array of disease states, including acute thermal burn injuries, carbon monoxide poisoning, and decompression sickness, to name a few. Although HBOT is approved by the Undersea and Hyperbaric Medical Society for the treatment of only 14 conditions, it has been used "off-label" in the management of a variety of dermatological diseases. This review investigates the utilization of HBOT in dermatology and appraises the evidence behind its use. We focus on the role of HBOT in treating necrotizing soft tissue infections, compromised grafts and flaps, hidradenitis suppurativa, and pyoderma gangrenosum.


Subject(s)
Hidradenitis Suppurativa/therapy , Hyperbaric Oxygenation/methods , Pyoderma Gangrenosum/therapy , Soft Tissue Infections/therapy , Fasciitis, Necrotizing/therapy , Humans
15.
Acta Dermatovenerol Alp Pannonica Adriat ; 27(2): 103-107, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29945267

ABSTRACT

Cupping is an ancient procedure that has been practiced for thousands of years. It has been used to treat a variety of medical conditions, including dermatological ones. Cupping has been described in the literature for the treatment of conditions such as acne and eczema. The procedure is fundamentally divided into dry cupping and wet cupping; however, there have been many modern adaptations. Adverse events related to the procedure have been reported in the literature and should be considered by patients. However, cupping has a promising role in helping manage dermatological conditions.


Subject(s)
Complementary Therapies , Skin Diseases/therapy , Acupuncture Points , Humans , Suction
16.
Int J Dermatol ; 57(7): 770-775, 2018 Jul.
Article in English | MEDLINE | ID: mdl-29318598

ABSTRACT

Vitiligo is an acquired pigmentary skin of depigmentation occurring secondary to melanocyte destruction. Vitiligo and other leukodermas have a profound impact on quality of life. Current therapies include medical options, such as phototherapy, topical and systemic corticosteroids, topical calcineurin inhibitors, immunomodulators, and antioxidiants, and surgical options. Surgical options provide melanocytic cells to previously depigmented areas and use either tissue grafting or cellular grafting methods. Topical treatments are often insufficient, and many of the current surgical procedures have shown variable response rates. In this review, we discuss the process of the cellular grafting melanocyte-keratinocyte transplantation procedure (MKTP) and critically analyze its efficacy and safety in the treatment of vitiligo and other leukodermas. PubMed was searched for studies (2001-2017) describing the use of MKTP in patients with vitiligo or other leukodermas. Articles or trials discussing the use of MKTP for these patients were selected for in-depth review. Clinically relevant results regarding efficacy and safety of MKTP in vitiligo and leukoderma patients were analyzed. Numerous trials and case series/reports have demonstrated tolerability and efficacy of MKTP with repigmentation for patients with refractory, stable vitiligo. However, the response rates have been variable, likely influenced by vitiligo type and affected areas. Future research and clinical reporting will provide more insight on which phenotypes may benefit from MKTP.


Subject(s)
Keratinocytes/transplantation , Melanocytes/transplantation , Vitiligo/surgery , Cell Transplantation/adverse effects , Cell Transplantation/methods , Humans
17.
Am J Clin Dermatol ; 19(3): 333-344, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29230666

ABSTRACT

Granuloma annulare (GA) is a benign inflammatory disease associated with many conditions such as malignancy, trauma, thyroid disease, diabetes mellitus, and HIV infection. Common clinical subtypes include localized GA, generalized GA, subcutaneous GA, perforating GA, and patch GA. There exists an abundance of literature on GA, yet we know relatively little about its exact etiology and even less about its treatment. The paucity of conclusive data on effective treatment options is largely because the majority of published studies are limited to small case reports, case series, and retrospective studies. As such, there does not yet exist a gold standard of care to guide clinical management. Depending on the clinical subtype, the clinical prognosis for GA can vary. The localized variant generally self-resolves within 2 years without treatment, whereas the generalized form is more chronic and less responsive to treatment. This focused up-to-date review serves to summarize the latest therapeutic options available for GA.


Subject(s)
Biological Products/therapeutic use , Dermatologic Agents/therapeutic use , Granuloma Annulare/therapy , Phototherapy/methods , Administration, Cutaneous , Administration, Oral , Anti-Infective Agents/therapeutic use , Antimalarials/therapeutic use , Diagnosis, Differential , Fumarates/therapeutic use , Glucocorticoids/therapeutic use , Granuloma Annulare/diagnosis , Granuloma Annulare/epidemiology , Granuloma Annulare/etiology , Humans , Injections, Intralesional , Remission, Spontaneous , Skin/pathology , Treatment Outcome
18.
J Drugs Dermatol ; 16(11): 1145-1151, 2017 Nov 01.
Article in English | MEDLINE | ID: mdl-29141064

ABSTRACT

Port-wine stain (PWS) is the second most common congenital vascular malformation characterized as ectatic capillaries and venules in the dermis that clinically appears as a deep red to purple patch on the skin. Typically, PWS progressively darken and may become hypertrophic or nodular without treatment. There are several treatment options available for PWS from topical antiangiogenic agents to laser therapies. Vascular-specific lasers are the gold standard in treating PWS and classically pulsed dye lasers are usually the treatment of choice. However, some patients with PWS are recalcitrant to PDL and may require a combination of treatment methods. Nonetheless, even with the advancements in laser therapies utilized today, it is can be difficult to achieve complete clearance of the PWS. Thus, new innovations for treating recalcitrant PWS are underway in order to improve overall patient treatment outcomes.

J Drugs Dermatol. 2017;16(11):1145-1151.

.


Subject(s)
Port-Wine Stain/surgery , Humans , Laser Therapy , Lasers, Dye , Low-Level Light Therapy , Port-Wine Stain/pathology , Port-Wine Stain/radiotherapy
19.
Am J Clin Dermatol ; 18(2): 237-251, 2017 Apr.
Article in English | MEDLINE | ID: mdl-28063093

ABSTRACT

For centuries, honey has been utilized for wound healing purposes. In recent times, this specific topic has become a field of interest, possibly due to the advent of antibiotic resistance in microbial pathogens. With constant technological advancement, the information regarding honey's mechanisms of action on wound healing has accumulated at a rapid pace. Similarly, clinical studies comparing honey with traditional wound care therapies are steadily emerging. As a follow-up to a previous review published in the journal in 2011, the current review article outlines publications regarding honey and wound healing that have been published between June 2010 and August 2016. Here we describe the most recent evidence regarding multiple types of honey and their mechanisms of action as antimicrobial agents, immunologic modulators, and physiologic mediators. In addition, outcomes of clinical studies involving a multitude of cutaneous wounds are also examined.


Subject(s)
Anti-Infective Agents/therapeutic use , Bandages , Honey , Immunologic Factors/therapeutic use , Wound Healing/drug effects , Administration, Topical , Humans , Randomized Controlled Trials as Topic
20.
Am J Clin Dermatol ; 17(5): 491-508, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27358187

ABSTRACT

Non-melanoma skin cancer represents one-third of all malignancies and its incidence is expected to rise until the year 2040. Cutaneous squamous cell carcinoma (cSCC) represents 20 % of all non-melanoma skin cancer and is a deadly threat owing to its ability to metastasize to any organ in the body. Therefore, a better understanding of cSCC is essential to strengthen preventative measures and curable treatment options. Currently, research demonstrates that cSCC is diagnosed at a rate of 15-35 per 100,000 people and is expected to increase 2-4 % per year. With respect to metastatic cSCC, this disease is more common in men; people over the age of 75 years; and inhabitants of the south and mid-west USA. In 2010, the American Joint Committee on Cancer updated the Cancer Staging Manual's primary tumor designation to now include high-risk factors; however, factors such as immunosuppression and tumor recurrence were not included. Other staging systems such as Brigham and Women's Hospital have allowed for increased stratification of cSCC. High-risk cSCC is defined as a cSCC that is staged as N0, extends beyond basement membrane, and has high-risk features associated with sub-clinical metastasis. High-risk features are depth of invasion (>2 mm), poor histological differentiation, high-risk anatomic location (face, ear, pre/post auricular, genitalia, hands, and feet), perineural involvement, recurrence, multiple cSCC tumors, and immunosuppression. Epidermal growth factor receptor and nuclear active IκB kinase (IKK) expression are also predictive of metastatic capabilities. Clinically, the initial lesions of a cSCC tumor can present as a painless plaque-like or verrucous tumor that can ultimately progress to being large, necrotic, and infected. Tumors can also present with paresthesias or lymphadenopathy depending on the location involved. With respect to prognosis, metastatic cSCC is lethal, with several large studies demonstrating a mortality rate of >70 %. Therefore, treatment of metastatic cSCC is difficult and depends on the location involved and extent of metastasis. Treatment options include surgery, radiation therapy, chemotherapy, and any combination of the above. Surgery alone can be used for metastatic cSCC treatment, but is not as effective as surgery in conjunction with radiation therapy. Radiation therapy has some success as a monotherapy in low-risk or cosmetically sensitive areas such as the external ear, eyelid or nose. According to the 2013 National Comprehensive Cancer Network Guidelines, cisplatin as a single agent or combined with 5-fluorouracil hold the strongest support for the treatment of metastatic cSCC; however, the supporting evidence is inconsistent and a curative chemotherapeutic approach is still lacking. Epidermal growth factor receptor inhibitors are a newer class of agents being used in metastatic cSCC and hold some promise as a therapy for this disease. Other areas of interest in finding curative treatments for metastatic cSCC include p53, hypermethylation of specific genes, chromatin remodeling genes, and the RAS/RTK/PI3K pathway. This review addresses the epidemiology, staging, risk factors, clinical presentation, management, and new trends in the treatment of high-risk and metastatic cSCC.


Subject(s)
Carcinoma, Squamous Cell/therapy , Skin Neoplasms/therapy , Carcinoma, Squamous Cell/epidemiology , Carcinoma, Squamous Cell/pathology , Female , Humans , Incidence , Male , Neoplasm Metastasis , Neoplasm Recurrence, Local , Neoplasm Staging , Prognosis , Risk Factors , Skin Neoplasms/epidemiology , Skin Neoplasms/pathology
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