Prevention and Control of Leprosy
Written by Dr.ChrisLeprosy is a chronic infectious and communicable disease. Many of patients with leprosy are having infectious (bacilliferous) type of the disease. This is the main source of infection. Seggregation of leprosy patients voluntarily or forcibly is one of the steps in control of the. disease. But it is a great task and often leads to […]
Tags: Dermatology, leprosy
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Leprosy (Hansen’s disease)
Written by Dr.ChrisLeprosy (Hansen’s disease) is a chronic infectious disease caused by an acid fast bacillus called Mycobacterium leprae. These organisms are seen in clumps in tissue smears and are less acid fast and less alcohol fast than mycobacterium tuberculosis, the causative organism for tuberculosis. In vitro culture of the organism is still not successful; even though […]
Tags: Dermatology, leprosy, Skin Infection
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Predominant skin lesions
Written by D C MorganMigratory type of thrombophlebitis may sometimes be the manifestation of carcinoma of the head of the pancreas. In cystic fibrosis of the pancreas excess amounts of chlorides are excreted through sweat and estimation of chloride in sweat may help in its diagnosis. Acute haemorrhagic pancreatitis may be manifested as purpura or ecchymosis in the left […]
Tags: Corticosteroids, Dermatology, Skin Inection, skin lesions
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SKIN IN SYSTEMIC DISEASES
Written by D C MorganSkin often mirrors the presence of an internal disease. A detailed dermatological examination often helps the physician to get some clues regarding the primary disease from which the patient is suffering.
Skin and gastrointestinal tract:- Most of the gastrointestinal diseases are associated with some form of skin lesions. In Peutz-Jeghers syndrome intestinal polyps are associated wtih […]
Tags: Dermatology, Gardner s syndrome, Peutz-Jeghers syndrome, Skin Infection, steatorrhoea
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Neurodermatitis
Written by D C MorganNeurodermatitis has already been discussed under eczemas. It is characterized by well circumscribed, intensely pruritic lichenified plaques on the feet or neck. Patient goes on scratching that particular site. This is an outlet for the emotional problems, the patient has. Pruritus ani and pruritus vulvae may be some times purely psychological origin.
Pleasure is achieved by […]
Tags: Dermatology, Pruritus ani, pruritus vulvae, PSYCHO CUTANEOUS DISEASES
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Dermatomyositis
Written by D C MorganThe first symptom noticed by most of the patients with dermatomyositis is difficulty to climb up steps. The proximal group of muscles of the limb; are affected first by the disease process. Tenderness of the muscle may be elicited in most cases.
Skin changes include diffuse erythema, inac.ulopapular eruptions and exfoliative dermatitis. Heliotropic pigmentation in the […]
Tags: Dermatology, sclerodermatomyositis, Skin Infection, SLE
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Treatment of acne
Written by D C MorganAcne is a chronic inflammatory disorder of pilosebaceous apparatus. At the time of puberty there is an increased level Of androgens in body. This androgen causes increase in size and activity of sebaceous glands. It further causes epithelialisation of-follicular orifices which leads to partial block in the follicular opening. This block and subsequent anoxia leads […]
Tags: Dermatology, Skin Infection
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Merits and Demerits of Various in Vivo Tests
Written by D C MorganA positive skin test in itself does not indicate absolutely that the patient will develop systemic reaction upon receiving penicillin and a negative test does not mean that penicillin can be administered safely.
The possibility that routine skin testing with penicillin may itself lead to sensitisation is there. The scratch test though easy to perform is […]
Tags: Dermatology, ID test, Negative Skin Test, Positive Skin Test, Skin Infection, Subcutaneous Test
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Infra Dermal (ID) Test
Written by D C MorganIn Infra Dermal (ID) Test, 0.1 ml of the test solution of penicillin is injected intradermally on the forearm and mark the area with a skin pencil. Development of a flare and wheal at that site with in 15 to 20 minutes indicates sensitivity.
A patient on test dose, should not receive any corticosteroid or antihistamines […]
Tags: Anaphylaxis, Dermatology, ID test, Skin Infection
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Pencillin Sensitisation tests, Scratch Test
Written by D C MorganSensitisation test: There are no reliable sensitisation tests which ca n infallibly predict the occurance of immediate type of reaction to a non protein drug nor is it safe to perform ID tests with suspected drugs as they may sometimes cause severe and even fatal anaphylaxis.
Potassium benzyl penicillin is an excellent antigenic substance which in […]
Tags: Dermatology, Drug Aallergy, Pencillin Allergy, penicilloyl group, Scratch Test, Sensitisation test
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Teratogenic effect, Hypersensitivity
Written by D C MorganTeratogenic effect: - Developmental defects may be produced in the foetus by administration of certain drugs especially between the 34th and 45th days of gestation. Methotrexate, tetracycline, corticosteroids, phenothiazines and thalidomides are the common teratogenic agents.
Hypersensitivity:- There are mainly four types of hypersensitivity reactions. They are: Type I Anaphylaxis Type II Cytotoxic Type III Arthus; […]
Tags: Anaphylaxis, Arthus; serum sickness, Corticosteroids, Cytotoxic, Dermatology, Methotrexate, Skin Infection, teratogenic agents, tetracycline
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Erytheme multiforme
Written by D C MorganErytheme multiforme manifests as sudden eruption of different types of lesions-erythema, papules, nodules, plaques, vesicles and bullae. The lesions are distributed bilaterally on the flexor aspect of the distal part of limbs. The characteristic lesion seen in erythema multiforme is called ‘iris lesion’. It presents as an erythematous, round macule or plaque.
The central part of […]
Tags: Dermatology, Iris lesion, Skin Infection, Stevens Johnson syndrome, Vascular Reactions
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Toxic epidermal necrolysis
Written by D C MorganToxic epidermal necrolysis is a severe condition characterized by sudden development of superficial blisters which join in a few hours, to form ’scald’ like skin lesions. The epidermis gets detached in sheets to leave large raw areas.
Drugs and staphylococcal toxins are the main causes of this often fatal condition. The patient will be highly toxic. […]
Tags: Dermatology, Skin Infection, skin lesions, staphylococcal toxins, Vascular Reactions
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Erythema nodosum
Written by D C MorganErythema nodosum manifests as sudden eruption of erythematous painful and tender cutaneous nodules, bilaterally on the anterior aspect of the legs. Associated fever and arthralgia may be noted in most cases.
The lesion subsides in 7 to 14 days leaving faint hyperpignientation. It does not usually ulcerate except in leprosy. Common causes are streptococcal throat infection, […]
Tags: arthralgia, bromides, Dermatology, iodides, Skin Infection, sulphonamides, Vascular Reactions
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Henoch - Schoenlein Purpura
Written by D C MorganHenoch - Schoenlein Purpura, also called anaphylactoid purpura, usually manifests as bilateral palpable purpuras (purpura on urticarial base) of extremities, more on legs associated with flitting joint pains or sometimes obvious hydrarthrosis and abdominal pain. Urine may show red blood cells and albumin.
The disease is essentially due to an allergic vasculitis and involves not only […]
Tags: Anaphylactoid purpura, Bilateral palpable purpuras, Dermatology, Skin Infection, Vascular Reactions
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