| Condition | Description | Clinical presentation | Diagnosis and management |
| Tinea corporis | Scaly, erythematous annular plaques with ... | Lesions develop after close contact with ... | Potassium hydroxide preparation may dete ... |
| Tinea corporis | Scaly, erythematous annular plaques with ... | Lesions develop after close contact with ... | Treatment options include topical and sy ... |
| Erythema migrans (Lyme disease) | Expanding, erythematous, annular rash wi ... | Lesion appears three to 30 days after ti ... | Diagnosis is clinical |
| Erythema migrans (Lyme disease) | Expanding, erythematous, annular rash wi ... | Lesion appears three to 30 days after ti ... | Treatment options include doxycycline, . ... |
What is an annular lesion?
Annular lesions are extremely common and striking in appearance, but can also be misleading. The term “annular” stems from the Latin word “annulus,” meaning ringed.
What causes annular erythema?
Often no specific cause for the annular erythema is found. However, it has been noted that annular erythema is sometimes linked to underlying diseases and conditions. These include: Bacterial, fungal and viral infections such as tuberculosis, secondary syphilis, sinusitis, candidiasis or tinea
What causes granuloma annulare?
No one knows exactly what causes granuloma annulare. But in some people, the condition may be triggered by: Animal or insect bites. Infections, including hepatitis. Tuberculin skin tests. Vaccinations. Sun exposure.
What is annular pustular psoriasis in dermatology?
Annular Lesions in Dermatology. Subacute annular pustular psoriasis is a generalized type of pustular psoriasis characterized by multiple annular lesions with erythema, scaling, and pustules at the periphery. [ 10] Annular lichen planus is violaceous in color with very narrow rim of activity and a depressed, slightly atropic center found on penis.
What is an annular lesion?
DEFINITION. Annular skin lesions are figurate lesions characterized by a ring-like morphology. Although plaques represent the most common presentation of annular lesions, lesions may also be macular, nodular, or composed of grouped papules, vesicles, or pustules.
What does an annular lesion look like?
Annular lesions are extremely common and striking in appearance but can also be misleading. The term “annular” stems from the Latin word “annulus,” meaning ringed. The lesions appear as circular or ovoid macules or patches with an erythematous periphery and central clearing.
What causes erythema annulare?
The pathogenesis of erythema annulare centrifugum (EAC) is unknown, but it is probably due to a hypersensitivity reaction to a variety of agents, including drugs, arthropod bites, infections (bacterial, mycobacterial, viral, fungal, filarial), ingestion (blue cheese Penicillium), and malignancy.
Are annular lesions itchy?
Annular lesions can be partial (arciform) and coalesce to form polycyclic (ringed), serpiginous (wavy), and gyrate (revolving) patterns. Classically, the annular or arciform lesions have an advancing outer erythematous edge with a trailing (inner) scaly edge. The rash may be itchy.
Is granuloma annulare the same as ring worm?
Granuloma annulare is often mistaken for ringworm. Ringworm, however, is usually scaly and itchy. Granuloma annulare is not. This rash can also be mistaken for bug bites or a rash caused by a tick with Lyme disease.
How do you get granuloma annulare?
The exact cause of granuloma annulare is unknown (idiopathic). Numerous theories exist linking the cause to trauma, sun exposure, thyroid disease, tuberculosis, and various viral infections.
What does annular erythema look like?
Erythema annulare centrifugum (EAC) is a rare skin rash. The rash has small red bumps that spread out from a central area. The bumps often form a ring-like pattern, but may spread into irregular shapes. The center area may lighten up.
Is annular erythema contagious?
Currently EAC is not known to be contagious, but as many cases are incorrectly diagnosed as EAC, it is difficult to be certain.
What drugs cause erythema annulare Centrifugum?
Which medications may cause erythema annulare centrifugum (EAC)?Amitriptyline.Azacitidine.Chloroquine.Cimetidine.Estrogen.Etizolam.Finasteride.Hydrochlorothiazide.More items...
What causes granuloma annulare to flare up?
Symptoms and Causes Doctors also think granuloma annulare is related to triggers, such as: Skin injuries such as insect bites or trauma. Certain medications, like allopurinol (Aloprim®, Zyloprim®) Some diseases, like human immunodeficiency virus (HIV) and hepatitis C.
Is there a cure for granuloma annulare?
Granuloma annulare can clear on its own over time. Treatment might help clear the skin faster than if left untreated, but recurrence is common. The lesions that return after treatment tend to appear at the same spots, and 80% of those usually clear within two years.
What causes a circular rash?
A circular rash is typical of ringworm (a contagious fungal skin infection. But it may also occur due to other skin conditions such as Lyme disease, eczema, psoriasis, pityriasis rosea, or granuloma annulare. Contact your healthcare provider for a diagnosis of any circular rash that does not resolve quickly.
What is annular psoriasis?
The answer is A: annular plaque psoriasis. Psoriasis is a chronic inflammatory skin disorder with a genetic predisposition. Triggers include infection, drug use, and trauma. Plaque psoriasis is characterized by annular, well-demarcated, erythematous plaques with adherent, silvery-white scales and central clearing.
What is a granuloma on the skin?
Granuloma annulare is a benign (not cancer), often chronic (long-lasting) skin disorder in which inflammation in the skin causes a raised, discolored rash or lumps under the skin. In most cases, rashes form on the hands, feet and forearms.
What is a large blister called?
A larger blister is called a bulla. In many cases, vesicles break easily and release their fluid onto the skin.
What causes erythema Marginatum?
Erythema marginatum is the skin manifestation of acute rheumatic fever, which is is a delayed complication of pharyngitis due to Streptococcus pyogenes, which are also called group A Streptococcus or group A strep.
What is granuloma annulare?
Granuloma annulare. Granuloma annulare. Granuloma annulare is a skin condition that causes a raised rash or bumps (lesions) in a ring pattern, usually on the hands and feet. Granuloma annulare (gran-u-LOW-muh an-u-LAR-e) is a skin condition that causes a raised rash or bumps (lesions) in a ring pattern. The most common type affects young adults and ...
What is the most common type of granuloma annulare?
Localized. This is the most common type of granuloma annulare. The bump (lesion) borders are circular or semicircular, with a diameter up to 2 inches (5 centimeters). The lesions occur most commonly on the hands, feet, wrists and ankles of young adults. Generalized.
What is the lump under the skin called?
Under the skin. A type that usually affects young children is called subcutaneous granuloma annulare. It produces small, firm lumps under the skin, instead of a rash. The lumps form on the hands, shins and scalp.
Where do lesions occur?
The lesions occur most commonly on the hands, feet, wrists and ankles of young adults. Generalized. This type is uncommon and usually affects adults. It causes bumps that form a rash on most of the body, including the trunk, arms and legs. The rash might cause discomfort or itchiness. Under the skin.
Is granuloma annulare a cancer?
Granuloma annulare is occasionally associated with diabetes or thyroid disease, most often when lesions are numerous or widespread. It may, rarely, be related to cancer, especially in older people whose granuloma annulare is severe, doesn't respond to treatment or returns after cancer treatment. By Mayo Clinic Staff.
What is an annular erythema?
Annular erythema is a descriptive term that refers to a number of chronic annular and erythematous skin eruptions. Other descriptive terms used to classify these types of lesions include: Erythema figuratum perstans. Erythema gyratum repens is often classified separately.
How long does an annular erythema last?
Annular erythema usually clears up by itself. Eruptions may last for a few weeks to many years (the average duration is 11 months). Most cases of annular erythema require no treatment (and no curative therapy is known). However, topical corticosteroids may be helpful in reducing redness, swelling and itchiness.
What is the ICd 10 code for annular erythema?
ICD-10: L53.1, L53.3. ICD-11:
When does erythema occur?
Annular erythema may occur at any time throughout life, from infancy to old age. The eruption usually begins as a small raised pink-red spot that slowly enlarges and forms a ring shape while the central area flattens and clears. There may be an inner rim of scale.
Can nnular erythema cause stinging?
A nnular erythema most often appears on the thighs and legs, but may occur on the face, trunk and arms. The lesions rarely cause symptoms but in some patients may cause mild itching or stinging.
