Myiasis
Written by D C MorganThe invasion of mammalian tissue by dipterous larvae is called myiasis. Commonly it is caused by the larvae of house fly (musca domestica). On open ulcers, the flies lay their eggs. The eggs hatch and larvae are formed which burrow through deeper parts of ulcers. Treatment consists of removal of maggots with forceps and douching […]
Tags: Skin Infection
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Larva Migrans (Creeping Eruption)
Written by D C MorganIt is produced by the migration of larval parasites, usually of nematodes, through the skin producing tortuous, linear eruptions. Human skin, here becomes an unnatural host for these larvae. Larvae of Ancylostoma brazilies and Ancylostoma caninum are commonly responsible for this eruption. After a few hours of entrance of larva, an erythematous papule develops at […]
Tags: Skin Infection
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Treating Insect Bites
Written by D C MorganMost patients develop an allergic reaction to the venom introduced during bites by the insects. Mosquitoes, when suck blood deposit some amount of saliva also in the skin. The first response in an infant, to mosquito bite is development of an indurated papule at site of bite. This is mediated by T lymphocytes, resulting in […]
Tags: Insect Bites, Skin Infection
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Ground Itch
Written by D C MorganThis is a dermatitis usually seen on the feet especially in the interdigital spaces. It is produced at site of penetration of skin infective larvae of Ancylostoma duodenale. Clinically the lesions are intensely pruritic erythematous areas with papules and vesicles. The skin lesions regress and disappear in two weeks if there is no secondary bacterial […]
Tags: Insect Bites, Skin Infection
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Enterobiasis
Written by D C MorganPredominent symptom in pin worm infestation is pruritus of the anal region especially at night. Pruritus is produced by the mechanical and allergic irritation of the perianal skin by the migrating female worms. Sometimes the worms may migrate into vagina also produceing pruritus vulvae. Intense pruritus provokes scratching which leads to eczematisation. Oral administration of […]
Tags: Insect Bites, Skin Infection
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Cimicosis, Pulicosis
Written by D C MorganCimicosis: During insect bites by bed bugs, some amount of saliva also is injected into the skin which causes an allergic response characterised by development of itchy papules on the sides and back of trunk. The papules are characteristically arranged in linear and semilunar fashion. Treatment consists of administration of antihistamines. Prevention is by avoidence […]
Tags: Insect Bites, Skin Infection
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Blister Beetle Dermatitis
Written by D C MorganThis Insect bite is an irritant dermatitis produced by the ‘Blister Beetles’. The insect has smalln sacs at the joints of legs. These sacs have cantharidine containing fluid inside. During sleep, the insect may get crushed in between the skin surfaces or between the skin and bed resulting in release of vesicating fluid from sacs. […]
Tags: Insect Bites
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Louse Infestation: Pediculosis Pubis or Phthiriasis Pubis
Written by D C MorganThis is caused by Phthirus pubis or crab louse. The organisms are seen in the public area, lower abdome; axillae and eyelashes. Itching may be the only symptom. Sometimes it causes hyperpigmentation of skin in lower abdomen and pubic area. These are called maculae caerulae. It is due to deposition of haemosiderin in skin. Treatment […]
Tags: Dermatology, Skin Infection
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Louse Infestation: Pediculosis Corporis
Written by D C MorganHere the eggs are laid on the inside seams of the clothing of those with poor hygiene. Generalised pruritus is the main symptom which leads to scratching, secondary bacterial infection and hyperpigmentation. This is also known as Vagabond’s disease. Treatment must include the thorough disinfestation of the clothings and beddings.
Tags: Skin Infection
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Louse Infestation: Pediculosis Capitis
Written by D C MorganThis is infestation of the scalp with pediculi. Itching is the commonest symptom. Scratching predisposes to secondary bacterial infctions and subsequejnt cervical lymph adenopathy. It is common in children. All the family members may be affected. Treatment consists of application of 25% benzyl benzoate emulsion or 1% gammaxene. A second application of benzyl benzonate emulsion […]
Tags: Skin Infection
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Treatment of Scabies
Written by D C MorganIf there is severe secondary bacterial infection it should be treated with appropriate antibiotics. Penicillin is the drug of choice, if the organism isolated is streptococcus. The patient should take a scrub bath so that all the burrows can be opened. After mopping and drying the skin antiscabitic ointment, lotion or emulsion can be applied. […]
Tags: Bacterial Infection, Fungal Infection, Skin Infection
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What is Scabies
Written by D C MorganIt is a contagious disease causd by sarcoptes scabiei varhominis, also called acarus scabiei or itchmite. It is a dorsiventrall flattened, eight legged animal. The female is larger then the male and usually measures 0.3 mm in length. Fertilized female mites burrow through the horny layer of skin at about 2 mm per day and […]
Tags: Scabies, Skin Infection
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Different types of Scabies
Written by D C MorganClean Scabies:
This occurs in people who have good hygiene. The usual sites affected by scabies may not be involved. One can see only a few papules here and there. This often causes a diagnostic problem.
Scabies Galeusus:
Development of primary lesions of syplilis in scabitic lesions on the external genitalia may often cuse misdiagnosis of syphilis.
Scabies in […]
Tags: Clean Scabies, Nodular Scabies, Sarcoptes Mange, Scabies, Scabies Galeusus, Scabies in Children, Scabies Incognito
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Norwegian Scabies (scabies keratotica)
Written by D C MorganThis is a special type of scabie characterisd by highl keratotic and crusted lesions in the hands, ears, feet and other parts of body. It is usually asymptomatic. Scabis is a highly pruritic disease. The exact pathophysiologic mechanism of pruritus is not well understood. It is probabl a hpersensitivity reaction to th faecal pellets or […]
Tags: Dermatology, Scabies, Skin Infection
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