A Guide To Nodular Dermatitis
Friday, April 1st, 2011Nodular rash is a term relating to dermal infiltration in the shape of clusters either solitary or multiple. The illness is analogous to another skin illness called Prurigo nodularis. The condition is distinguished by itchy nodules customarily appearing on the arms or legs. Some of the patients suffering from the disease exhibits multiple excoriated lesions caused by excessive scratching. The effects of nodular dermatitis can be adverse mainly due to pruritus, which is the chronic urge or reflex to scratch. There’ll be a clear elimination of the skin.
The causes of nodular dermatitis as well as PN are still unknown. However, there are pre-existing conditions, i. e. Becker’s nevus, linear IgA illness, autoimmune condition, and T cells, which can prompt nodular rash. The disease can also be linked to internal malignancies, liver and renal failure.
Repetitive scratching of the affected area may result in lasting changes in the skin of patients suffering from nodular dermatitis. Other harmful results of unjustifiable scratching caused by the illness include : lichenification, hyperkeratosis, increase in the colouration and thickening of the skin. Those with excoriated lesions exhibit scaly or crusted skin accompanied by scabs. Patients suffering from the disease often seek treatment during middle-age. It is also possible to have a history of chronic severe pruritus and significant medical history of unrelated conditions. Those who have a history of eczema, especially atopic dermatitis usually exhibit nodular dermatitis at any age. Patients suffering from HIV or AIDS are also vulnerable and may develop the affliction.
The nodules produced by nodular rash are discrete, hyperpigmented, firm and often symmetrical. In addition, the nodules are larger than 0. 5cm in both width and depth. The excoriated lesions are frequently flat and have crusts on top. During the onset of nodular dermatitis, the nodules may begin to appear in the hair follicles making the pattern of invasion follicular.
Like prurigo nodularis, the nodular rash can be diagnosed based totally on visible exam and presence of itching. The doctor would also conduct a skin biopsy so as to exclude other sicknesses the patient is afflicted by. To distinguish if the nodular dermatitis is secondary to atopic dermatitis, a culture of at least one lesion would be conducted. This will determine if there is an infection of staphylococcus.
The condition is very hard to treat. However, there are existing therapies available including the application of steroids and vitamins, cryosurgery and thalidomide. Treatment thru UVB light is available. Antibiotics might be administered if there’s a proof of staphylococcal infection or other illnesses. The doctor could also administer a strong dose of prednisone which will straight away stop the itch and scratch cycle.