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Erythroderma is generalized exfoliative dermatitis, which involves 90% or more of the patient's skin. [3] The most common cause of erythroderma is exacerbation of an underlying skin disease, such as Harlequin-type ichthyosis, psoriasis, contact dermatitis, seborrheic dermatitis, lichen planus, pityriasis rubra pilaris or a drug reaction, such as the use of topical steroids. [4]
[8] [12] In addition to flaky skin, seborrhoeic dermatitis can have areas of red, inflamed, and itchy skin that coincide with the area of skin flaking, but not all individuals have this symptom. [8] Seborrhoeic dermatitis of the scalp can appear similarly to dandruff. [11] When the scalp is affected, there can be associated temporary hair loss ...
Erosive pustular dermatitis of the scalp presents with pustules, erosions, and crusts on the scalp of primarily older Caucasian females, and on biopsy, has a lymphoplasmacytic infiltrate with or without foreign body giant cells and pilosebaceous atrophy. [2]: 650 [3]: 761 The exact cause of erosive pustular dermatitis of the scalp is unknown.
Dry, thick, well-defined lesions consisting of large, silvery scales may be traced to the less common condition of scalp psoriasis. Inflammation can be characterized by redness, heat, pain or swelling, and can cause sensitivity. Inflammation and extension of scaling outside the scalp exclude the diagnosis of dandruff from seborrhoeic dermatitis ...
692.8 Contact dermatitis and other eczema due to other specified agents. 692.81 Dermatitis, due to cosmetics; 692.83 Dermatitis, due to metals; 692.9 Contact dermatitis NOS; 693 Dermatitis due to substances taken internally. 693.0 Dermatitis due to drugs and medicines taken internally; 693.1 Dermatitis due to food taken internally; 694 Bullous ...
Dermatitis was estimated to affect 245 million people globally in 2015, [6] or 3.34% of the world population. Atopic dermatitis is the most common type and generally starts in childhood. [1] [2] In the United States, it affects about 10–30% of people. [2] Contact dermatitis is twice as common in females as in males. [11]
The fungus can also exist in a carrier state on the scalp, without clinical symptomatology. Treatment of tinea capitis requires an oral antifungal agent ; griseofulvin is the most commonly used drug, but other newer antimycotic drugs, such as terbinafine , itraconazole , and fluconazole have started to gain acceptance.
Although the exact cause of PN is unknown, PN is associated with other dermatologic conditions such as untreated or severe atopic dermatitis and systemic causes of pruritus including liver disease and end stage kidney disease. [2] The goal of treatment in PN is to decrease itching. PN is also known as Hyde prurigo nodularis, or Picker's nodules ...