Specialized Subjects in Dermatology

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Protected: Melasma (Chloasma, Pregnancy Mask) – Table of Contents

Tuesday, October 23rd, 2012

There is no excerpt because this is a protected post.

Tokelau (Tinea Imbricata) – Table of Contents

Tuesday, October 23rd, 2012




Introduction: a “beautiful” fungal infection Causes (Etiology) Geographical Distribution Clinical Presentation Diagnosis and Differential Diagnosis Treatment Bibliography

Cholesterol and the Skin – Table of Contents

Tuesday, October 23rd, 2012




Introduction Drugs inducing increased cholesterol levels Skin conditions associated with elevated cholesterol Skin conditions induced by statin use (treatment) Statins: A new therapeutic drug in Dermatology ?

Dermatology in Infectious Diseases – Table of Contents

Saturday, October 20th, 2012




Carrion’s Disease and the Skin American Trypanosomiasis (Chagas Disease) and the skin Cholera and the skin Dengue Fever and the skin Influenza (flu) and the skin Hansen’s Disease (Leprosy) HIV infection/AIDS and the Skin Malaria and the skin Schistosomiasis (Bilharziosis) and the Skin African Trypanosomiasis (Sleeping Sickness) and the Skin Tuberculosis and the Skin

Seborrheic Keratosis – Table of Contents (For Professionals)

Monday, October 15th, 2012




Table of Contents (For Professionals) Seborrheic keratosis=SK Introduction -Historical Features -Epidemiology Clinical Features -Clinical Presentation -Differential diagnosis on clinical grounds Dermatoscopical Features -Differential Diagnosis on dermoscopical grounds Histological Features Association of SK with systemic disease Etiology -Origin of SK follicular epithelium solar lentigo -Causal factors Uv exposure HPV infection (Human papillomavirus)) deficiency in presenilin vitamin […]

Introduction (For Professionals)

Friday, October 12th, 2012




Seborrheic keratosis (SK) is a benign epidermal neoplasm which presents as an eruption of one to hundreds of  papules or plaques. The major potential burden for the patient is a cosmetic nuisance, but a florid acute appearance of SK lesions can rarely be associated with an internal neoplasm {Vielhauer, 2000; Heaphy, 2000; Grob, 1991}. Sometimes, […]

Clinical Features (For Professionals)

Thursday, October 11th, 2012




Clinical Features (For Professionals) Dr Christophe HSU – dermatologist. Geneva, Switzerland Clinical Presentation Usually, the diagnosis is straightforward. Histology is needed in doubtful cases. {Pierson, 2003}SKs have many ways of presenting, they can appear as macules, papules or plaques which are normally sharply demarcated from the surrounding normal skin.  They are generally brown in colour […]

Dermoscopical Features (dermatoscopy) (For Professionals)

Tuesday, October 9th, 2012




Seborrheic Keratosis = SK Cerebriform like appearance and milia-like cysts Dermoscopical Features (dermatoscopy) (For Professionals) – Hairpin vessels are long capillary rings which develop at the periphery of keratinising tumours {Kreusch, 1996}. Typically, many vessels bunch together and are surrounded with a white halo, thus giving a grape-like appearance {Braun, 2002}. This characteristic is more […]

Histological Features (Histology) (For professionals)

Monday, October 8th, 2012




Histological Features (Histology) (For professionals) Seborrhoeic keratosis=SK In case of diagnostic doubt, a shave biopsy ought to be done. SK are benign epithelial tumours which are part of the group of acanthomas {Brownstein, 1985}. SK is postulated to be of follicular keratinocytic origin {Mehregan, 1964; Degos, 1968}, and can show an exophytic (upwards)  sometimes endophytic […]

Association with Internal Diseases (For Professionals)

Sunday, October 7th, 2012




Association with Internal Diseases (For Professionals) The rapid apparition of SK mostly when it is associated with acanthosis nigricans (35% of patients) and especially pruritus{Holdiness, 1988} should raise the suspicion about an internal malignancy. There is a big polemic about the existence of this rare sign called Leser-Trélat. The information concerning this sign is shown […]

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