Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Biography

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Physicians often have difficulty diagnosing a generalized rash because many different conditions produce similar rashes, and a single condition can result in different rashes with varied appearances. A rapid and accurate diagnosis is critically important to make treatment decisions, especially when mortality or significant morbidity can occur without prompt intervention. When a specific diagnosis is not immediately apparent, it is important to generate an inclusive differential diagnosis to guide diagnostic strategy and initial treatment.
If the diagnosis remains unclear, the primary care physician must decide whether to observe and treat empirically, perform further diagnostic testing, or refer the patient to a dermatologist. This decision depends on the likelihood of a serious disorder and the patient's response to treatment.

Generalized rashes are among the most common conditions seen by primary care physicians,1,2 and the most common reason for new patient visits to dermatologists.3 Diagnostic errors involving generalized rashes are common.4,5 However, accurate diagnosis is important because treatment varies depending on the etiology, and because some rashes can be life-threatening if not treated promptly. Some generalized rashes have distinctive features that allow immediate recognition, such as psoriasis (silvery white scale on the knees and elbows), pityriasis rosea (herald patch), and atopic dermatitis (lichenified skin in flexural areas). But these conditions, like many others, can present with similar appearances and can be mistaken for each other.

The causes of a generalized rash are numerous, but most patients have common diseases (Table 1).12–26 Many common rashes improve spontaneously or with simple measures, such as discontinuing a medication. Life-threatening rashes are rare in the United States, so they can be easily missed because they are not considered.

Because of the large number of conditions that can manifest as a generalized rash, it is not reasonable to expect physicians to generate a complete differential diagnosis from memory at the point of care. Consulting a list of potential causes allows the physician to narrow the possibilities by noting salient clinical features and test results . If the diagnosis remains unclear, the physician must decide whether to treat the patient symptomatically, pursue further testing, or consult a dermatologist.

Patients with acute generalized maculopapular rashes and no systemic symptoms are often treated symptomatically without a definitive diagnosis. If the rash does not resolve spontaneously, skin biopsy and blood testing (e.g., serologies, complete blood count) may be indicated. There are no widely accepted guidelines that address indications for skin biopsy, but , and Table 340 include common practices. The patient should be referred to a dermatologist if the rash is progressive or does not resolve with observation or empiric treatment. For example, mycosis fungoides (cutaneous T-cell lymphoma) mimics eczema in its early stages and is rarely diagnosed correctly at initial presentation.41 Reevaluation and possible referral are imperative in chronic eczematous conditions that do not respond to therapy.

It is important to look beyond the appearance of the rash itself and search for clues from the patient's history, physical examination, laboratory tests, and skin biopsy. Because of busy schedules and perceived patient expectations, physicians often feel pressured to quickly arrive at a diagnosis. However, unless the diagnosis is obvious, it is usually more productive to start with a differential diagnosis that includes all reasonable possibilities. Before making a final diagnosis, the physician could also refer to a list of rashes that are often confused with each other.

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Skin Rash Diagnosis Pictures Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck