Demarcated erythematous rash. In ACLE an erythematous rash localized to the nose and cheeks, symmetrically (malar rash) is typical. Significant itch suggests atopic dermatitis or contact dermatitis. The rash was initially on the left thigh, subsequently spreading to the right thigh. She had no maxil-lary or frontal sinus tenderness or oral ulcerations (Figure). See the CKS topic on Pityriasis rosea for more information. Plaque psoriasis is characterized by annular, well-demarcated, erythematous plaques with adherent, silvery-white scales and central clearing. 1). The characteristic skin findings include sharply-demarcated, dry, scaly erythematous plaques that are usually periorificial on the face or the anogenital area. He also reported that he was being treated for a tuberculous A18. To do that, you need to know how to describe a lesion with the associated language. The rash was associated with dryness, desquamation, and a burning sensation. Can you identify these rashes? A 45-year-old moderately obese man presents with well-demarcated erythematous patches on the axillae and an erythematous patch with scale on his scalp. Although many symptoms overlap, there are identifiable factors for each disease. Geometric or linear configuration indicates “outside job” and is a clue to diagnosis Typical targetoid lesions are less than 3 cm in diameter and start as sharply demarcated, round and symmetrical red macules or papules that eventually develop 3 concentric zones: a well-defined Plaque psoriasis, also known as psoriasis vulgaris, is a chronic, immune-mediated inflammatory skin disorder characterized by well-demarcated, erythematous plaques covered with silvery-white scales (see Learn about ICD-10 coding for erythematous conditions, including unspecified erythema (L53. (Reprinted from Psoriasiform diaper rash with well-demarcated erythematous scaly patches and plaque in the diaper area 6 weeks after beginning propranolol therapy. He had initially had a diagnosis of psoriasis and was treated with topical Contact dermatitis presents with blistered or scaly, erythematous plaques, which are often irregular in shape and sharply demarcated. This often has a raised, lace-like appearance and may be itchy, clearing spontaneously within a few days. This man in his early 70s presented with a two year history of an itchy rash on his lower limbs. Facial rashes Patients often present with quite mild signs when they have a facial lesion or rash — due to embarrassment — and the diagnosis may be tricky. 88 scarlatiniform L53. Diagnosis The diagnosis of tinea corporis is most often clinical, especially if the lesion is typical. Itch is defined by a desire to scratch. The lesions had Cellulitis typically presents as an acutely spreading erythematous rash with edema, warmth, tenderness and poorly demarcated borders. The eruption usually begins as a small raised pink-red spot that slowly enlarges and forms a ring shape, while the central area She was afebrile with an edematous, erythematous, well-demarcated rash in a malar distribution. 8 pernio T69. A healthy 13-year-old girl presented with a 1-month history of an asymptomatic, well-demarcated rash on her back and upper chest. An acute or chronic itchy rash is most often due to dermatitis/eczema. She had no maxillary or frontal sinus tenderness or oral ulcerations (Figure). 1 rash, newborn P83. On examination, there are several well-demarcated erythematous plaques with central pallor on the lower back, buttocks, and ankles, with nearby heme-crusted excoriations. Physical examination demonstrated erythematous papules coalescing into a sharply demarcated plaque on the bilateral medial thighs with A 22-year-old woman presented with a worsening nonpruritic rash on the anterior aspect of her chest and underarms for the past 6 months. Tinea corporis—well-demarcated, erythematous plaques with raised, scaly borders. The genital plaque has typical scale in the perianal area, but lack of scale in the perineal and A glass slide can be used as a quick and simple tool to determine whether a lesion is the result of vasodilation or something more concerning. Examination reveals well demarcated erythematous patches; within the area are scattered papules that match the child’s skin or are erythematous. The lesions vary in size and commonly appear on the trunk and extremities. These A 42-year-old woman presented with a rash, present for 1 week, which developed after a vacation to Mexico. Physical examination reveals a well-demarcated zone of erythema in the perianal region. Ampicillin caused this rash. Although the itch improved with this treatment, the rash persisted and worsened. Wheals are a common manifestation of hypersensitivity to medications, stings or bites, autoimmunity, and, less commonly, physical stimuli including temperature, pressure, and sunlight. 8 (recurrent) (exfoliative) solare L55. Within the following roughly 24 hours, the typical herpes zoster rash The rash was initially on the left thigh, subsequently spreading to the right thigh. White blood cell Clearly demarcated erythematous rash 3 April 2025 ← Filling the funding void would mitigate infectious outbreaks and build resilience in Africa → Smartphone and social Clinical image of a patient with sharply demarcated, erythematous rash on the neck following application of a cervical collar for 2 weeks. Fungal cultures of the skin The diagnosis of any skin lesion starts with an accurate description of it. Consider these differential diagnoses for nonblanching skin lesions. The rash is erythematous, well-demarcated, and symmetrical (Fig. This language, reviewed here, can be used to describe any A larger herald patch usually precedes the onset of the generalized rash. 1. The rash began 3 months prior and worsened during warmer weather. It often affects hair-bearing cutaneous vulva including the mons pubis and labia majora while sparing the vulvar mucosa, with poorly demarcated erythematous plaques Diaper rashes due to seborrheic dermatitis usually present as well-demarcated, erythematous patches with inguinal fold involvement but without the degree of scale often seen on the scalp. On examination, there was clearly demarcated erythema on both feet and lower legs, and thickening, deformation, and discoloration of the toenails (fig 1). On In ACLE an erythematous rash localized to the nose and cheeks, symmetrically (malar rash) is typical. The This man in his early 70s presented with a two year history of an itchy rash on his lower limbs. Physical examination demonstrated erythematous papules coalescing into a sharply demarcated Wheals are pruritic and erythematous. Lesions migrate relatively Examination revealed sharply demarcated, erythematous patches, with superficial erosions and desquamative scales, on her anterior aspect of the neck, extending to both This exanthematous, drug-induced eruption consists of brightly erythematous macules and papules, some of which are confluent, distributed symmetrically on the trunk and extremities. The differential diagnosis for symmetric, well- demarcated erythematous patches and plaques on a baby’s lower abdomen includes psoriasis, candidiasis, atopic dermatitis, contact dermatitis, and nutritional Examination revealed sharply demarcated, erythematous patches, with superficial erosions and desquama-tive scales, on her anterior aspect of the neck, extending to both clavicles, upper Approaches to Medical PresentationsNow on sale in the Medical Bookstore. Erythema multiforme, which is due to a hypersensitivity reaction, presents with Patch stage is characterized by solitary or multiple erythematous to hyperpigmented scaling patches on sun-protected body areas. She has had Examination reveals well-demarcated, erythematous macules of her lower legs interspersed with brownish pigmentation. Erysipelas presents as a well-demarcated, erythematous, warm, Erythema marginatum is a rare skin rash that spreads on the trunk and limbs. Weeping, vesicular erythematous papules and plaques that are very itchy. Morphologically, SCLE lesions can be The child complains of slight itchiness but no pain. The term maculopapular is often loosely and improperly used to describe Malar rash, also named a butterfly rash, is a common facial presentation of multiple disorders. Physical examination demonstrated erythematous papules coalescing into a sharply demarcated plaque on the bilateral medial thighs with A 55-year-old woman complained of a five-day-old leg rash. He had initially had a diagnosis of psoriasis and was treated with topical Erythema marginatum refers to a macular, serpiginous, blanching, erythematous rash with sharply demarcated borders. 0 This man in his early 70s presented with a two year history of an itchy rash on his lower limbs. Patients may report associated pain or a burning sensation, usually without pruritus. The rash can appear in rings Initial lesions consist of well-demarcated, erythematous, occasionally confluent macules that are limited to a specific dermatome. These may be pruritic or Examination revealed sharply demarcated, erythematous patches, with superficial erosions and desquamative scales, on her anterior aspect of the neck, extending to both clavicles, upper portion of the chest, This man in his early 70s presented with a two year history of an itchy rash on his lower limbs. There were well-demarcated erythematous crusted plaques with focal erosions of the perioral, genital, and acral skin and scattered scaly erythematous plaques on the extremities (Fig 1, A-C). EMR consists of light-pink serpiginous lesions that have a well-demarcated edge and a clearing central area. Infected dermatitis: painful, swollen, pustules, crusting. Initial management steps The diagnosis of any skin lesion starts with an accurate description of it. Symptoms of erythema multiforme The main symptom of erythema multiforme is a . We would like to show you a description here but the site won’t allow us. Depending on the layer of skin involved, the clinical syndrome can be classified as either erysipelas or cellulitis. It usually gets better on its own in 2 to 4 weeks. A well-demarcated, shiny red erythematous maculopapular rash was distributed symmetrically over the a axillary areas, b inguinal areas, and mons pubis, c sacral and gluteal areas, and Erythematous lesions may be maculopapular or morbilliform, and generally begin on the trunk and are symmetrically distributed (Figure 25). The lesions initially had appeared as erythematous and coin-shaped and then had evolved into hyperpigmented plaques. Well-demarcated, warm, erythematous, confluent plaques were Examples include nevi, warts, lichen planus, insect bites, seborrheic keratoses, actinic keratoses, some lesions of acne, and skin cancers. She also had non-insulin-dependent diabetes, hyperlipidemia, and hypertension, which she managed with insulin, atorvastatin, and labetalol Physicians often have difficulty diagnosing a generalized rash because many different conditions produce similar rashes, and a single condi-tion can result in different rashes with varied Discoid lesions are erythematous, sharply demarcated, round plaques characterized by adherent scale, follicular plugging, telangiectasia, and scarring. Urticaria may be an immediate- or delayed-type reaction, and presents with small Discoid lupus erythematosus is the most common form of chronic cutaneous lupus erythematosus. White blood cell Triggers include infection, drug use, and trauma. Patients may give a history of exposure to a relevant irritant or allergen. She was afebrile with an edematous, erythematous, well-demarcated rash in a malar distribution. Order by Email 1-877-777-4738 Download PDF Read chapter 29 of Symptom to Diagnosis: An Evidence-Based Guide, 3e online now, exclusively on AccessMedicine. A 13-year-old girl presented to the clinic with hair loss and a rash in the axillae for 4 months. A systematic approach is necessary to identify life-threatening conditions and reach a definitive diagnosis. The term maculopapular is often loosely and improperly used to describe On examination, a poorly demarcated, shiny, erythematous rash is noted over the convex surface of the buttocks, lower abdomen, and genitalia, with relative sparing of the In part I of this two-part article, tables listing common, uncommon, and rare causes of generalized rash are presented to help generate an inclusive differential diagnosis. Pityriasis versicolor — well-demarcated multiple round or oval macules of variable colours most Plaque psoriasis generally presents with sharply demarcated, erythematous silver plaques. Morphologically, SCLE On examination, the patient has well-demarcated erythematous plaques with central areas of violaceous discoloration on the face, chest, back, and upper and lower extremities. Fungal cultures of the skin identified Trichophyton Plaque psoriasis generally presents with sharply demarcated, erythematous silver plaques. Allergic contact dermatitis manifests as erythematous vesicles and bullae with scaling and relatively well-demarcated borders on exposed skin, typically along the hands, face, and neck, although When present, the rash represents one of the major Jones’ criteria. The rash at presentation was a well-demarcated, erythematous, papular patch measuring approximately 20 cm ×10 cm (Fig. The eruption consisted of discrete, dark brown papules that coalesced into Rash is a common presenting symptom with many different causes. This language, reviewed here, can be used to describe any Examination revealed sharply demarcated, erythematous patches, with superficial erosions and desquamative scales, on her anterior aspect of the neck, extending to both clavicles, upper portion of the chest, axilla, Erythema multiforme: symmetrical erythematous lesions on the extensor surfaces, palms, soles, or mucous membranes, which may be macular, papular, urticarial, bullous, or purpuric. Dermatitis can be primary, or secondary to scratching. It was associated with Rashes are common and diagnostically challenging conditions encountered in all healthcare settings. This man in his early 70s presented with a two year history of an itchy rash on his lower limbs. 6 A well-demarcated, sharply circumscribed, erythematous, annular, scaly plaque with a raised We have explored the rash that appears as target lesions, with the central and dominant diseases belonging to the Stevens-Johnson syndrome/toxic epidermal necrolysis group. 4 palmar L53. SCLE lesions are usually localized in photoexposed areas of the body. Resolution of A&B, Infantile Psoriasis, mainly involving the folds with sharply demarcated erythematous plaques, which show only discrete scaling because of the hydration The characteristic skin lesions of this disease have sudden-onset, and are generalized, diffusely erythematous rashes accompanied by edema around the eyes, with associated pain, and with A light pink erythematous, macular rash may also appear on the chest, stomach, arms and thighs. AccessMedicine is a subscription-based resource from McGraw Hill that features trusted The purpura usually begins suddenly, a few days to weeks after the onset of a febrile infectious disease, with the development of well-demarcated, rapidly enlarging, erythematous, or purplish macules progressing within hours A 72-year-old man is referred for evaluation of a rash involving his perianal region. Target lesions with clear A woman presented with erythematous, pruritic skin patches on her trunk and extremities that were slowly increasing in size and number. He had initially had a diagnosis of psoriasis and was treated with topical clobetasol propionate. A woman in her 50s presented with bilateral pruritic erythematous plaques in the submammary, axillary, genitofemoral, and intergluteal areas, that had been present for six months. It is important to understand the characteristics of rashes that allow proper He had initially had a diagnosis of psoriasis and was treated with topical clobetasol propionate. The rash is round, with a pale-pink center, surrounded by a slightly raised red outline. 9) and erythema in diseases classified elsewhere (L54). In secondary stage of Trypanosomiasis, transient erythematous or urticarial rashes, with circinate and annular pattern, will develop on the trunk. Skin rashes are common patient complaints. Psoriasis is a chronic relapsing condition affecting skin, nails and joints that most commonly presents with well demarcated erythematous papules and plaques with silvery Diagnosis-VP Diagnosis is based on clinical morphology. A 46-year-old woman presented with an erythematous, scaly eruption that started on her arm and spread to her back, chest, and groin. In most cases, it presents unilaterally and Examples include nevi, warts, lichen planus, insect bites, seborrheic keratoses, actinic keratoses, some lesions of acne, and skin cancers. A 44-year-old man with infliximab-treated Crohn’s disease presented with a 2-day history of rash on his face. Erythema multiforme is a skin condition that can be caused by an infection or some medicines. After presenting the clinical patterns of an Well demarcated erythema surrounding the anogenital area with typical psoriatic plaques in surrounding skin. The rash started on her right leg and then spread to her face and arms (Figure 1). On examination, there On examination, there was clearly demarcated erythema on both feet and lower legs, and thickening, deformation, and discoloration of the toenails (fig 1). [7] Erythema multiforme has target lesions which has three zones: a central Usually poorly demarcated Erythematous or violaceous papules & plaques with overlying scale Blisters containing nonpurulent fluid Blisters containing purulent fluid Reactive rash with various morphology Psoriasis Lichen Annular erythema refers to a number of chronic annular and erythematous skin eruptions. [1] characterized by an erythematous flat or raised rash across the bridge of the nose and cheeks, which usually A 3-year-old girl has a persistent vulvar rash which has not responded to topical antifungal treatment. Reserve your copy today. Acute eczema. Lesions are generally well-demarcated erythematous macules or papules with Lesions are typically well-demarcated, erythematous plaques that may progress to vesicles or bullae. 7hd4m hk7 zka5qg 9tzw1 6rgz ecgmk yntp io2n muzu 87hi