Publications by authors named "Cynthia Nicholson"

High-flow vascular malformations have been associated with multiple syndromes including capillary malformation-arteriovenous malformation (CM-AVM) syndrome, hereditary hemorrhagic telangiectasia syndrome, and less commonly, phosphatase and tensin homolog hamartoma tumor syndrome (PHTS). We present a series of three patients with clinically challenging complex AVMs who were found to have underlying PHTS. In all patients, diagnosis was delayed, and the presence of the AVM prompted sampling and genetic testing for PHTS in the absence of other clinical features of the condition.

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Improved understanding of the genetic basis of vascular anomalies has uncovered a growing need for targeted medical therapies. This is especially important for lesions not amenable to surgical interventions or interventional radiologic techniques. Recent studies and case reports have documented the effective use of tailored medical therapies in several distinct types of vascular anomalies.

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For infantile hemangiomas (IH) requiring treatment, including those in high-risk locations or in the setting of ulceration, oral propranolol is first-line therapy. Here, we present three cases of infantile hemangioma with worsening ulceration following initiation or escalation of oral propranolol at standard doses.

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Capillary malformation-arteriovenous malformation (CM-AVM) syndrome is an autosomal dominant condition characterized by multifocal, noncontiguous pink patches on the skin that often have a surrounding pale halo. In some cases, an association with a fast flow, arteriovenous malformation (AVM) can be identified. Here, we describe a case report of a 16-year-old woman with CM-AVM syndrome and significant cardiac compromise successfully treated with trametinib, a mitogen-activated protein kinase (MEK) inhibitor.

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Reactive infectious mucocutaneous eruption (RIME) was proposed as new terminology to encompass postinfectious mucocutaneous eruptions. The term includes all postinfectious mucocutaneous eruptions such as the widely reported Mycoplasma pneumoniae-induced rash and mucositis (MIRM). Very few reports in the literature regarding recurrent RIME are found.

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Hidradenitis suppurativa (HS) is a chronic inflammatory disease affecting intertriginous skin areas, and it is characterized by recurrent painful episodes of inflammatory drainage. Although the pathophysiology of HS is not fully understood, recent research points to an imbalance of cytokines as a contributing factor to the associated symptoms of purulent drainage and sinus tract formation. HS lesions are often characterized by a superimposed pathogenic/commensal bacterial infection that can improve with targeted antibiotic therapy.

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Excess amounts of skin surface oil can lead to adverse psychological consequences. Grease-spot photometry-based techniques measure sebum production rate. However, besides being tedious, these measurements are influenced by contact area, applied pressure, and time of application.

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Postinflammatory hyperpigmentation (PIH) occurs following cutaneous injury and is common following resolution of acne especially in patients with skin of color. The objective of this study was to further validate a trichloroacetic acid (TCA)-induced PIH model and compare it to acne-induced PIH using topical bakuchiol, a botanical extract that has been shown to have antimicrobial, anti-inflammatory, antioxidant, and antiacne properties. A prospective, non-randomized clinical trial was conducted on subjects with skin phototypes IV-VI with a history of acne-induced PIH.

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Background: causes an estimated 500000 enteric illnesses in the United States annually, but the association with socioeconomic factors is unclear.

Methods: We examined possible epidemiologic associations between shigellosis and poverty using 2004-2014 Foodborne Diseases Active Surveillance Network (FoodNet) data. cases (n = 21246) were geocoded, linked to Census tract data from the American Community Survey, and categorized into 4 poverty and 4 crowding strata.

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BACKGROUND: Visible light (VL) has multiple effects on the skin that currently available sunscreens do not protect against. Polypodium leucotomos extract (PLE) has properties that may offer protection against VL. OBJECTIVES: To determine the effectiveness of PLE in preventing VL-induced effects.

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Background: Beach vacations are high-risk settings for overexposure to ultraviolet radiation.

Objective: To compare the sunburn protective efficacy of SPF 50+ and SPF 100+ sunscreens under actual use at the beach.

Methods: A prospective, randomized, double-blind, single-center, split-body/face study of 55 healthy individuals.

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Solar radiation is a major contributor to the development of skin cancer. Recent studies have shown that visible light (VL), a major portion of solar spectrum, induces biologic effects on the skin. Ultraviolet filters in currently available broad-spectrum sunscreens do not offer protection against VL.

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Background: Vitiligo is a disorder of dyspigmentation that can impact quality of life. While narrow-band ultraviolet B (NBUVB) is an effective treatment for vitiligo, a subset of patients are unable to respond to phototherapy as they cannot photoadapt. However, nonsteroidal anti-inflammatory drugs (NSAIDs) have been shown to increase the minimal erythema dose.

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The 2nd Annual Symposium on Hidradenitis Suppurativa Advances (SHSA) took place on 03-05 November 2017 in Detroit, Michigan, USA. This symposium was a joint meeting of the Hidradenitis Suppurativa Foundation (HSF Inc.) founded in the USA, and the Canadian Hidradenitis Suppurativa Foundation (CHSF).

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Background: A paucity of knowledge exists regarding the use of ertapenem in hidradenitis suppurativa. Our retrospective chart review and telephone interview aims to investigate the utility of intravenous ertapenem in severe, refractory hidradenitis suppurativa.

Methods: This retrospective chart review and telephone interview included patients with severe, refractory hidradenitis suppurativa treated with intravenous ertapenem between March 2013 and December 2016.

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Background: Although recent hidradenitis suppurativa studies have shown that early-onset disease is associated with a positive family history and more widespread disease, research in pediatric hidradenitis suppurativa is limited.

Methods: Thirty-three children diagnosed with hidradenitis suppurativa during an 18-month period were included in this institutional review board-approved, retrospective chart review. Information on demographic characteristic, family history, and timing of onset (prepubescent vs postpubescent) was extracted.

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Background: Psoriasis and hidradenitis suppurativa (HS) exhibit distinct clinical features, but no studies have directly compared the health-related quality of life (HRQoL) in patients with moderate-to-severe manifestations of these conditions.

Objective: To determine which disease is associated with more severe HRQoL impairment.

Methods: Weighted averages of each of the following baseline HRQoL measures were determined and compared between HS and psoriasis populations from 5 clinical trials: Visual Analog Scale (VAS) for pain, Total Work Productivity Impairment, Dermatology Life Quality Index; EuroQOL 5D VAS, and Short Form-36 Health Survey.

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Hidradenitis suppurativa (HS) is a devastating disease involving abscesses, sinus tracts, and inflammation classically affecting the axilla, groin, and/or anogenital region. Although the disease pathogenesis is not fully understood, recent advances suggest that HS pathology runs much deeper than the cutaneous manifestations. It is now believed that HS is a systemic inflammatory disease that gives rise to the characteristic cutaneous manifestations.

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Hidradenitis suppurativa (HS) is a chronic skin disease that is difficult to manage and often refractory to medical management. Light and laser therapies have been utilized in the field of dermatology to treat a variety of skin conditions, but more recently were studied in the management of HS. Usually performed as outpatient procedures with a low risk of complications, they offer several advantages to traditional cold knife surgical procedures.

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For decades, culture has been the mainstay of diagnostic testing for bacterial enteric pathogens. This paradigm is changing as clinical laboratories adopt culture-independent methods, such as antigen-based tests and nucleic acid-based assays. Public health surveillance for enteric infections addresses 4 interrelated but distinct objectives: case investigation for localized disease control; assessment of disease burden and trends to prioritize and assess impact of population-based control measures; outbreak detection; and microbiologic characterization to improve understanding of pathogens, their virulence mechanisms, and epidemiology.

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