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The skin is the largest organ of the human body, yet we are able to see dermatologic disorders and skin changes fairly easily. Unlike other internal body organs, we can visualize skin changes using our eyes, without the use of sophisticated technology and invasive procedures. Those interested in clinical dermatology information will benefit from checking back here frequently to learn from our photos and illustrations.


Erythroderma is a condition caused by several etiologies that result in red inflamed skin on 90% or more of the body surface.
Source: Mistry, N., Gupta, A. Alavi, A., & Sibbald, G. (2015). A Review of the Diagnosis and Management of Erythrodema (Generalized Red Skin). Advances in Skin & Wound Care: The Journal for Prevention and Healing, 28(5).   


Irritation to metal salts can worsen atopic skin disease in children. This is the case of a 9-year-old boy with pop-tab dermatitis on his upper lip.
Source: Jacob, S. & Admani, S. (2014). Irritant Dermatitis to Metal in a Child With Atopic Skin Disease. Journal of the Dermatology Nurses' Association, 6(5). 

Pemphigoid gestationisis a rare, self-limited dermoepidermal bullous disease associated with pregnancy and the puerperium. 
Source: Brown, N. (2014). A Case Study of Mistaken Tinea Corporis in a 28-Year-Old Woman. Journal of the Dermatology Nurses' Association, 6(3). 



Inflammatory papules, pustules, and cystic lesions of acne often resolve with postinflammatory hyperpigmentation (areas of discoloration) that can last for several weeks to months. Cysts and nodules can result in long-term scarring. 
Source: Well, D. (2013). Acne vulgaris: A review of causes and treatment options. The Nurse Practitioner, 38(10).


In this photograph, reddish-violaceous plaques are seen above the upper lip of a Black woman with sarcoidosis.
Source: Czerkasij, V. (2013). Skin of Color: A Basic Outline of Unique Differences. The Nurse Practitioner, 38(5). 



Epidermolysis bullosa results in various extents of skin fragility and blistering because of friction, heat, or trauma.
Source: Badger, K., O'Haver, J., & Price, H. (2013). Recommendations for a Comprehensive Management Plan for the Child Diagnosed With Epidermolysis Bullosa. Journal of the Dermatology Nurses' Association, 5(2).


Erythema migrans is the most well-known sign of early localized Lyme disease. Note the targetlike concentric rings with no scale.
Source: Marchese, N. & Primer, S. (2013). Targeting Lyme disease. Nursing2013, 43(5). 


The typical presentation of catch scratch disease is more likely seen in people under age 60. The earliest sign of infection is the development of a pigmented papule at the site of inoculation.
Source: McGraw, M. (2013). Cat Scratch Disease. Nursing2013, 43(2).


Lice are tiny, wingless ectoparasites that live on the body. Head lice are the most common of the three species and can be seen with the naked eye. An adult louse is approximately 2 to 3 mm in length, tan to grayish-white, and is commonly mistaken for dandruff.
Source: Walden, P., Ellis, D., & Hicks, R. (2013). Parasites: What's eating your patient? Nursing Made Incredibly Easy!, 11(1).



Patients with bed bug bites usually present with small clusters of extremely pruritic, erythematous papules or wheals that represent repeated feedings by a single bed bug. The most common bite areas are the arms, legs, ankles, back, neck, and face, but bed bugs will bite in any area of skin to which they’re exposed. Bites are usually a red oval to oblong wheal, but may be as large as 3 cm (1.18 in) or may present as a bulla (blister).
Source: Walden, P., Ellis, D., & Hicks, R. (2013). Parasites: What's eating your patient? Nursing Made Incredibly Easy!, 11(1).



This photograph is of the vertex of the scalp where an ulcerative, erythematous, and crusted lesion of metastatic adenocarcinoma of the scalp can be seen.
Source: Neibaur, N. (2012). What's Your Diagnosis? Journal of the Dermatology Nurses' Association, 4(5). 



The halllmark sign of shingles is a painful rash. The vesicles, or blisters, are clustered and may become purulent before they rupture and form a crust. The rash is confined to a narrow band on one side of the body or the face. 
Source: Ogle, K. (2012).
Shingles: Chicken pox revisited. Nursing Made Incredibly Easy!, 10(4).



Atopic dermatitis is the most severe and long-lasting type of eczema. It's frequently diagnosed in infancy and early childhood. This skin condition can often be found on the insides of the elbows, backs of the knees, and the face, but it can also cover most of the body.
Source: McCanless, T. (2011).
Wound Wise: The irritation of eczema. Nursing Made Incredibly Easy!, 9(3).



The classic malignant melanoma is a black or purple nodule, but it may be flat or pedunculated, pink, red, tan, brown, or amelanotic (no color). A change in a recent or longstanding skin lesion should arouse suspicion, including change in size or shape, border irregularity, color variations, bleeding tendency, and ulceration.
Source: Roebuck, H. & Siegel, M. (2006).
Dermatology Discussion: The ABCs of Melanoma Recognition. The Nurse Practitioner: The American Journal of Primary Health Care, 31(6).



Nodular basal cell carcinoma is the most common form of basal cell carcinoma (BCC) and is most likely to occur on the head and neck. Nodular BCC generally begins as a small, dome-shaped, pink or pearly papule with a translucent appearance. Irregular, torturous, telangiectatic vessels become evident as the lesion grows. With continued enlargement, the structural irregularities become more apparent, causing the surface to become multilobular.
Source: Nolen, M., Beebe, V., King, J., Bryn, M., & Limaye, K. (2011).

<a href="&#10;<p> </p>&#10;&#10;<hr />&#10;<p> </p>&#10;&#10;<p style=" margin-left:="" 40px;"="">Psoriasis lesions are generally red and circular, with a patchy appearance, and covered with heavy, dry, silvery scales. Often referred to as plaques, these patches are usually itchy and may be sore or painful. They most often occur on the elbows, knees, legs, scalp, lower back, face, palms, and soles of the feet; however, psoriasis lesions can occur anywhere on the body.
Pullen, R. (2010).
Wound Wise: The skinny on psoriasis. Nursing Made Incredibly Easy!, 8(5).



To prevent steroid rosacea, pictured here, teach your patient not to use steroids on her face for longer than 2 weeks.
Source: Nedorost, S., Smith, M., & Tackett, B. (2007). HEALTH MATTERS: Facing Up To Withdrawal From Topical Steroids. Nursing2007, 37(9). 



Skin lesions of tinea versicolor typically appear as hypo- or hyperpigmented scaly macules and patches on the trunk and upper arms.The color of the lesions can range from white, to brown, to red, and are covered in a fine, dustlike scale.
Source: Nevas, J.(2012).
Dermatology Dilemmas: Tinea versicolor Understanding effective treatment options. The Nurse Practitioner: The American Journal of Primary Health Care, 37(1). 

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