Dermatology Commons^™

Isolation Of Leclercia Adecarboxylata From A Patient With A Subungual Splinter., Rina Allawh, Brendan J Camp

Medicine Faculty Publications

Leclercia adecarboxylata is a rarely described motile, aerobic, gram-negative bacillus reported to cause clinically significant solitary infections in immunocompromised patients and polymicrobial wound infections in immunocompetent patients [1-5]. We present a case of a polymicrobial infection including L. adecarboxylata in a healthy female patient with a subungual splinter, to increase awareness and aid in the diagnosis and treatment of cutaneous L. adecarboxylata infections. To our knowledge, this is the first reported case of trauma-related subungual L. adecarboxylata infection reported in the dermatology literature.

Nitric Oxide Generating/Releasing Materials, Honying Liang, Parimala Nacharaju, Adam J. Friedman, Joel Friedman

Dermatology Faculty Publications

Harnessing the impressive therapeutic potential of nitric oxide (NO) remains an ongoing challenge. This paper describes several of the current strategies both with respect to the underlying chemistry and physics and to the applications where they have shown promise. Included in this overview are molecular systems such as NONOates that release NO through chemical reactions and delivery vehicles such as nanoparticles that can generate, store, transport and deliver NO and related bioactive forms of NO such as nitrosothiols. Although there has been much positive movement, it is clear that we are only at the early stages of knowing how to …

Prevalence And Correlates Of Indoor Tanning And Sunless Tanning Product Use Among Female Teens In The United States, Megan Quinn, Arsham Alamian, Joel J. Hillhouse, Colleen Scott, Rob Turrisi, Katie Baker

ETSU Faculty Works

Background

Indoor tanning (IT) before the age of 35 increases melanoma risk by 75%. Nevertheless, IT and sunless tanning product (STP) use have gained popularity among youth. However, there are limited data on the prevalence and sociodemographic correlates of both IT and STP use in a representative sample of American teens.

Methods

Teenage females (N = 778) aged 12–18 years were recruited as part of an on-going longitudinal study conducted between May 2011 and May 2013. Descriptive statistics explored IT and STP usage in teen females at baseline. Logistic regression was used to determine sociodemographic correlates of IT and STP …

Spontaneous Asj-2j Mutant Mouse As A Model For Generalized Arterial Calcification Of Infancy: A Large Deletion/Insertion Mutation In The Enpp1 Gene., Qiaoli Li, C Herbert Pratt, Louise A Dionne, Heather Fairfield, Son Yong Karst, John P Sundberg, Jouni Uitto, Yin Tintut

Department of Dermatology and Cutaneous Biology Faculty Papers

Generalized arterial calcification of infancy (GACI), an autosomal recessive disorder caused by mutations in the ENPP1 gene, manifests with extensive mineralization of the cardiovascular system. The affected individuals in most cases die within the first year of life, and there is currently no effective treatment for this disorder. In this study, we characterized a spontaneous mutant mouse, asj-2J, as a model for GACI. These mice were identified as part of a phenotypic deviant search in a large-scale production colony of BALB/cJ mice at The Jackson Laboratory. They demonstrated a characteristic gait due to stiffening of the joints, with phenotypic similarity …

Jewish Dermatologists In Nazi Germany., Walter H.C. Burgdorf, Lawrence Charles Parish

Department of Dermatology and Cutaneous Biology Faculty Papers

With the development of medical specialties beginning in the 1860’s, physicians could devote their time to the study of specific organ systems or surgical approaches. Although Jews had been given full rights in the new Germany by 1871, prejudice and other restrictions often precluded hospital and university appointments. Major specialities like internal medicine and surgery were almost closed to Jews, as were obstetrics and gynecology. Dermatology with its heavy emphasis on sexually transmitted diseases evolved into a suitable domain for Jewish physicians almost by default. Even those Jews who converted to Christianity were not spared from discrimination. Paul Gerson Unna …

Steatocystoma Multiplex: Those Little Tumours., Ellen H. De Moll, W. Clark Lambert, Lawrence Charles Parish

Department of Dermatology and Cutaneous Biology Faculty Papers

No abstract provided.

Tumour-Stroma Crosstalk In The Development Of Squamous Cell Carcinoma., Yok Zuan Lim, Andrew P South

Department of Dermatology and Cutaneous Biology Faculty Papers

Squamous cell carcinoma (SCC) represents one of the most frequently diagnosed tumours and contributes significant mortality worldwide. Recent deep sequencing of cancer genomes has identified common mutations in SCC arising across different tissues highlighting perturbation of squamous differentiation as a key event. At the same time significant data have been accumulating to show that common tumour-stroma interactions capable of driving disease progression are also evident when comparing SCC arising in different tissues. We and others have shown altered matrix composition surrounding SCC can promote tumour development. This review focuses on some of the emerging data with particular emphasis on SCC …

Darkening And Eruptive Nevi During Treatment With Erlotinib (Poster), Stephen Hemperly Do, Tanya Ermolovich Do, Nektarios I. Lountzis Md

Department of Medicine

No abstract provided.

Herpes Zoster Duplex Bilateralis, Sean Branch Do, Arthur C. Sosis Md, Stephen M. Purcell Do

Department of Medicine

No abstract provided.

Eosinophilic Pustular Folliculitis, Ryan Owen Do, Arthur C. Sosis Md, Stephen M. Purcell Do

Department of Medicine

No abstract provided.

Subacute Cutaneous Lupus Erythematosus With Erythema Multiforme-Like Lesions: Consideration For Rowell Syndrome, Kelly L. Reed Do, Steven Oberlender Md, Phd, Stephen M. Purcell Do

Department of Medicine

No abstract provided.

Mouse Models For Pseudoxanthoma Elasticum: Genetic And Dietary Modulation Of The Ectopic Mineralization Phenotypes., Qiaoli Li, Haitao Guo, David W Chou, Annerose Berndt, John P Sundberg, Jouni Uitto

Department of Dermatology and Cutaneous Biology Faculty Papers

Pseudoxanthoma elasticum (PXE), a heritable ectopic mineralization disorder, is caused by mutations in the ABCC6 gene. Null mice (Abcc6(-/-) ) recapitulate the genetic, histopathologic and ultrastructural features of PXE, and they demonstrate early and progressive mineralization of vibrissae dermal sheath, which serves as a biomarker of the overall mineralization process. Recently, as part of a mouse aging study at The Jackson Laboratory, 31 inbred mouse strains were necropsied, and two of them, KK/HlJ and 129S1/SvImJ, were noted to have vibrissae dermal mineralization similar to Abcc6(-/-) mice. These two strains were shown to harbor a single nucleotide polymorphism (rs32756904) in the …

Human Adipose-Derived Stem Cell Transplantation As A Potential Therapy For Collagen Vi-Related Congenital Muscular Dystrophy., Vitali Alexeev, Machiko Arita, Adele Donahue, Paolo Bonaldo, Daniel A. Monti, Olga Igoucheva

Department of Dermatology and Cutaneous Biology Faculty Papers

INTRODUCTION: Congenital muscular dystrophies (CMD) are a clinically and genetically heterogeneous group of neuromuscular disorders characterized by muscle weakness within the first two years of life. Collagen VI-related muscle disorders have recently emerged as one of the most common types of CMD. COL6 CMD is caused by deficiency and/or dysfunction of extracellular matrix (ECM) protein collagen VI. Currently, there is no specific treatment for this disabling and life-threatening disease. The primary cellular targets for collagen VI CMD therapy are fibroblasts in muscle, tendon and skin, as opposed to muscle cells for other types of muscular dystrophies. However, recent advances in …

Language Barriers To Informed Consent For Dermatologic Interventions., Jordan Wang, Matthew Keller

Department of Dermatology and Cutaneous Biology Faculty Papers

CASE SCENARIO

A 39-year-old Spanish-speaking woman with limited English-language proficiency presents with her 13-year-old son to your private dermatology practice. Through her son, you learn the patient is worried about a mole that has significantly grown in size over the past 3 months. After examination, you recommend the nevus be biopsied to better evaluate it. However, you are barely able to communicate with the patient, and you suspect that her son is not interpreting everything you say based on his especially brief communications with her. To proceed with the biopsy, you must first obtain informed consent.

As the dermatologist, you …

Blockade Of Mast Cell Activation Reduces Cutaneous Scar Formation, Lin Chen, Megan Schrementi, Matthew J. Ranzer, Traci A. Wilgus, Luisa A. Dipietro

Faculty Publications & Research

Damage to the skin initiates a cascade of well-orchestrated events that ultimately leads to repair of the wound. The inflammatory response is key to wound healing both through preventing infection and stimulating proliferation and remodeling of the skin. Mast cells within the tissue are one of the first immune cells to respond to trauma, and upon activation they release pro-inflammatory molecules to initiate recruitment of leukocytes and promote a vascular response in the tissue. Additionally, mast cells stimulate collagen synthesis by dermal fibroblasts, suggesting they may also influence scar formation. To examine the contribution of mast cells in tissue repair, …

Images In Clinical Medicine. Rumpel-Leede Sign., Krystle Wang, Jason Lee

Department of Dermatology and Cutaneous Biology Faculty Papers

No abstract provided.

Is Aggressive Digital Papillary Adenocarcinoma Really Aggressive Digital Papillary Adenocarcinoma?, S. Chen, M. Asgari

Journal Articles

No abstract provided.

Papillary Adenocarcinoma In Situ Of The Skin: Report Of Four Cases, S. Chen, M. Asgari

Journal Articles

Although rare isolated cases of adenocarcinoma in situ of skin have been reported in the literature, adenocarcinoma in situ of skin as a concept and as a diagnostic category has not been established in the field of dermatopathology. In this work, four cases of papillary adenocarcinoma in situ of the skin are presented. In addition, the notion that lesions previously reported in the medical literature under the term of "papillary eccrine adenoma" are actually adenocarcinoma in situ is discussed.

Mediastinal Synovial Sarcoma., Niaz Hussain Soomro, Sanaullah Junejo, Aneeqa Ahsan Zafar, Shirin Siddiqi, Ghulam H

Department of Medicine

The mediastinum is an uncommon site of synovial sarcoma which is a rare soft tissue malignancy. An 18 year old boy was admitted for right sided chest pain since one year. Based on the CT scan chest findings, tru-cut biopsy of the mass was performed and histopathology initially reported as neurofibroma. The tumor was excised via posterolateral thoracotomy and excisional biopsy established the diagnosis of primary synovial sarcoma arising from the mediastinum. Patient was started on adjuvant chemotherapy at the oncologist tumor board’s recommendation and he received 6 cycles of adriamycin and ifosfamide. At last follow up he is free …

In Vivo Bioluminescence Imaging To Evaluate Systemic And Topical Antibiotics Against Community-Acquired Methicillin-Resistant Staphylococcus Aureus-Infected Skin Wounds In Mice, Yi Guo, Romela Irene Ramos, John S. Cho, Niles P. Donegan, Ambrose L. Cheung, Lloyd S. Miller

Dartmouth Scholarship

Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) frequently causes skin and soft tissue infections, including impetigo, cellulitis, folliculitis, and infected wounds and ulcers. Uncomplicated CA-MRSA skin infections are typically managed in an outpatient setting with oral and topical antibiotics and/or incision and drainage, whereas complicated skin infections often require hospitalization, intravenous antibiotics, and sometimes surgery. The aim of this study was to devel