| Farmyard pox | |
|---|---|
 | |
| Orf - a type of farmyard pox (thumb with two denuded orf lesions, following a bite by a sheep) | |
| Specialty | Infectious diseases |
| Types | Bovine papular stomatitis, orf, milker's nodule [1] |
Farmyard pox is a group of closely related Parapoxviruses of sheep and cattle that can cause bovine papular stomatitis, orf and milker's nodule in humans. [1]
Vitiligo is a disorder that causes the skin to lose its color. Specific causes are unknown but studies suggest a link to immune system changes.
Dermatology is the branch of medicine dealing with the skin. It is a speciality with both medical and surgical aspects. A dermatologist is a specialist medical doctor who manages diseases related to skin, hair, nails, and some cosmetic problems.
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. The major function of this system is as a barrier against the external environment.
Darier's disease (DAR) is an inherited skin disorder that presents with multiple greasy, crusting, thick brown bumps that merge into patches.
Erythroderma is an inflammatory skin disease with redness and scaling that affects nearly the entire cutaneous surface. This term applies when 90% or more of the skin is affected.
Discoid lupus erythematosus is the most common type of chronic cutaneous lupus (CCLE), an autoimmune skin condition on the lupus erythematosus spectrum of illnesses. It presents with red, painful, inflamed and coin-shaped patches of skin with a scaly and crusty appearance, most often on the scalp, cheeks, and ears. Hair loss may occur if the lesions are on the scalp. The lesions can then develop severe scarring, and the centre areas may appear lighter in color with a rim darker than the normal skin. These lesions can last for years without treatment.
Disseminate and recurrent infundibulofolliculitis, also called disseminate and recurrent infundibular folliculitis or Hitch and Lund disease, is a rare follicular skin condition that presents with irregularly shaped papules pierced by hair, is mildly itchy at times, and is chronic with recurrent exacerbations.
Erythromelanosis follicularis faciei et colli is an erythematous pigmentary disease involving the follicles, characterized by a reddish-brown, sharply demarcated, symmetrical discoloration involving the preauricular and maxillary regions.
Intermittent hair–follicle dystrophy is a disorder of the hair follicle leading to increased fragility of the shaft, with no identifiable biochemical disturbance, also with an unknown prevalence.
Erythema dyschromicum perstans is an uncommon skin condition with peak age of onset being young adults, but it may also be seen in children or adults of any age. EDP is characterized by hyperpigmented macules that are ash-grey in color and may vary in size and shape. While agents such as certain medications, radiographic contrast, pesticides, infection with parasites, and HIV have been implicated in the occurrence of this disease, the cause of this skin disease remains unknown.
Cutaneous small-vessel vasculitis (CSVV), also known as hypersensitivity vasculitis, cutaneous leukocytoclastic vasculitis, hypersensitivity angiitis, cutaneous leukocytoclastic angiitis, cutaneous necrotizing vasculitis and cutaneous necrotizing venulitis, is inflammation of small blood vessels, characterized by palpable purpura. It is the most common vasculitis seen in clinical practice.
Cutaneous actinomycosis is a chronic disease that affects the deep subcutaneous tissue of the skin. Caused by an anaerobic, Gram-positive, filamentous type of bacteria in the genus Actinomyces, invasion of the soft tissue leads to the formation of abnormal channels leading to the skin surface that discharge pale yellow sulfur granules.
Chromobacteriosis infections are a cutaneous condition caused by chromobacteria characterized by fluctuating abscesses.
Elephantiasis nostras is a cutaneous condition, a final hypertrophic fibrosis following longstanding chronic lymphangitis.
Borderline leprosy is a cutaneous skin condition with numerous skin lesions that are red irregularly shaped plaques.
Borderline lepromatous leprosy is a skin condition with numerous, symmetrical skin lesions.
Histoid leprosy is a skin condition, a rare form of multibacillary leprosy.
Heck's disease, also known as Focal Epithelial Hyperplasia, is an asymptomatic, benign neoplastic condition characterized by multiple white to pinkish papules that occur diffusely in the oral cavity. Can present with slightly pale, smooth or roughened surface morphology. It is caused by the human papilloma virus types 13 and 32. It exhibits surface cells with vacuolated cytoplasm around irregular, pyknotic nuclei and occasional cells with mitosis-like changes within otherwise mature and well-differentiated epithelium. A distinguishing histologic feature is elongated rete ridges with mitosoid bodies. It shows 'cobblestone' appearance clinically. It was first identified in the Aboriginal population of North America.
Cutaneous lymphoid hyperplasia refers to a groups of benign cutaneous disorders characterized by collections of lymphocytes, macrophages, and dendritic cells in the skin. Conditions included in this groups are:
Pyostomatitis vegetans is an inflammatory stomatitis and most often seen in association with inflammatory bowel disease, namely ulcerative colitis and Crohn's disease. Uncommonly, it may be one of the features of orofacial granulomatosis.