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Feline acne is a problem seen in cats primarily involving the formation of blackheads accompanied by inflammation on the cat's chin and surrounding areas that can cause lesions, alopecia, and crusty sores. [1] [2] [3] In many cases, symptoms are mild and the disease does not require treatment. [1]
An important infectious skin disease of cats is ringworm, or dermatophytosis.Other cat skin infections include parasitic diseases like mange and lice infestations.. Other ectoparasites, including fleas and ticks, are not considered directly contagious but are acquired from an environment where other infested hosts have established the parasite's life cycle.
ICD-9 chapters; Chapter Block Title I 001–139: Infectious and Parasitic Diseases II 140–239: Neoplasms III 240–279: Endocrine, Nutritional and Metabolic Diseases, and Immunity Disorders IV 280–289: Diseases of the Blood and Blood-forming Organs V 290–319: Mental Disorders VI 320–389: Diseases of the Nervous System and Sense Organs ...
Feline diseases are often opportunistic and tend to be more serious in cats that already have concurrent sicknesses. Some of these can be treated and the animal can have a complete recovery. Others, like viral diseases, are more difficult to treat and cannot be treated with antibiotics, which are not effective against viruses.
Psoriasis is a common, chronic, and recurrent inflammatory disease of the skin characterized by circumscribed, erythematous, dry, scaling plaques. [97] [98] [99] Psoriasis vulgaris. Annular pustular psoriasis; Drug-induced psoriasis; Exanthematic pustular psoriasis; Generalized pustular psoriasis (pustular psoriasis of von Zumbusch)
Conditions that are associated with increased rates of seborrhoeic dermatitis include individuals with HIV, Hepatitis C, alcoholic pancreatitis, Parkinson's disease, and alcohol abuse. [12] Seborrhoeic dermatitis is common in people with alcoholism, between 7 and 11 percent, which is twice the normal expected occurrence.
Psoriatic erythroderma can be congenital or secondary to an environmental trigger. [12] [13] [14] Environmental triggers that have been documented include sunburn, skin trauma, psychological stress, systemic illness, alcoholism, drug exposure, chemical exposure (e.g., topical tar, computed tomography contrast material), and the sudden cessation of medication.
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]