Psoriasis is an autoimmune disease characterized by abnormal patches of skin. Psoriasis can start at almost any age and involves both the sexes equally. It manifests in a variety of forms. The most frequent manifestation is called plaque type psoriasis where the lesions characteristically consist of well-demarcated erythematous plaques covered with loosely adherent silvery scales, […]
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Phytophotodermatitis Causes, Symptoms and Treatment
Phytophotodermatitis is phototoxic inflammatory eruption of the skin which results from contact with light-sensitizing botanical [from plants] agent, followed by exposure to ultraviolet light [from the sun or otherwise]. Some plants contain chemicals which can sensitize the skin to sunlight. If an individual comes in contact with such a plant and simultaneously gets exposed to […]
What Is Patch Test?
A patch test is a method used to determine if a specific substance causes inflammation of the skin. It is often used to test for allergens. The Procedure of Patch Test On the first visit, tiny quantities of 25 to 150 materials (allergens) in individual square plastic or round aluminium chambers are applied to the […]
Viral Hepatitis – Presentation and Treatment
Viral hepatitis can be caused by any one of the Hepatitis A, Hepatitis B, Hepatitis C, Hepatitis E and Delta virus, Epstein-Barr virus, cytomegalovirus, herpes simplex virus, rubella virus and virus of yellow fever. Hepatitis A Virus This is an RNA virus transmitted by feco-oral route. Incubation period is 2-6 weeks. It leads to acute […]
Warts – Presentation and Treatment
Warts are a skin growth caused by viral infection. Warts are thought to occur when there is an infection of the skin by the papilloma virus. Papilloma virus is a DNA virus and is known to have more than 40 subtypes distinguished on the basis of the viral genome. Different subtypes are associated with different […]
Candidiasis or Candida Infections
Candidiasis or candida infection can occur in many forms. Thrush or Oral Candidiasis Infection of the oral cavity with Candida albicans produces a curdy white deposit associated with redness and burning sensation in localized areas of the oral mucosa. It is common in infants, extremely debilitated individuals or those being treated with immunosuppressive drugs. Candidal […]
Hemangioma – Causes and Treatment
Hemangioma is a developmental malformation of blood vessels and not a typical tumor. Hemangioma is often present since birth and it never turns malignant. Types of Hemangiomas There are mainly three types of hemangioma Capillary hemangioma – arising from capillaries. Venous or cavernous hemangioma – arising from veins. Arterial or plexiform hemangioma – arising from […]
Sebaceous Cyst – Presentation and Treatment
Sebaceous cyst is a term which was used in old days to denote presumably sebum containing cysts originating from sebaceous glands but which were actually one of the following: Epidermoid cysts (epidermal cyst, epithelial cyst or infundibular cyst) – These are intradermal or subcutaneous cyst. Pilar cysts (trichilemmal cysts, isthmus-catagen cysts)- These originate from sebaceous […]