Dr Christophe HSU – dermatologist. Geneva, Switzerland What is it ? Pyogenic granuloma is a benign skin condition caused by the rapid proliferation of blood vessels. Lobular Capillary Hemangioma is the correct name. How does it look like ? Clinically, pyogenic granuloma presents as a fast-growing nodule (s) which is easily broken. Its color (colour)…
Introduction It is a skin disorder which concerns mainly Asians Clinically, Hori’s Nevus can coexist with melasma (chloasma, pregnancy mask) and or solar lentigos. It can be difficult to distinguish them*. *But it is important to distinguish them as Hori’s nevus responds well to the Nd-YAG 1064nm laser. However, solar lentigos (lentigenes) respond well to…
Acne vulgaris (pimples) (common acne) Actinic keratosis Contact allergy (Allergic contact dermatitis) Alopecia Areata Eczema and Atopic dermatitis Basal Cell Carcinoma (BCC) Photos Skin Signs of Internal Cancers Skin cancers Chicken Pox Skin Disorders in Young Children Chloasma (Melasma, Pregnancy Mask) Skin disorders induced by cosmetic products Darier’s Disease (Keratosis Follicularis) Dermatofibroma Diaper Candidiasis Skin…
Lichen Planus What is lichen planus ? It is an inflammatory condition of the skin. What is the chance of having it ? At any time, the frequency is evaluated at 0.5% of the population The development of lesions is triggered by stress. What does it look like ? It is characterized by violet bumps…
Dr Christophe Hsu – dermatologist. Geneva, Switzerland How frequent is it ? It affects 1% of the population with a peak of 3-4 % in the 11 to 30 years old age group. Females are affected 3 times more than males. (controversial as some studies report no difference) How does it present ? It presents…
Dr Christophe Hsu – dermatologist. Geneva, Switzerland What is Hansen’s disease? It is an infection caused by a bacteria called Mycobacterium Leprae. How is it transmitted? This is still incompletely understood but it would be airborne. It is not transmitted during birth and even prolonged contact does not guarantee transmission. How is it diagnosed? Examination…
Dr Christophe Hsu – dermatologist. Geneva, Switzerland What is psoriasis ? It is an inflammatory skin condition. An infiltrate of cells involved in inflammation attract other participants to perpetuate the inflammatory process. What are the chances of having it ? The proportion of the population having psoriasis is 2%. This percentage is higher regionally, particularly…
Lyme disease, what is it? Lyme disease (also called Borreliosis) is a systemic disease with skin manifestations. It is caused by bacteria of the Borrelia family which is transmitted via a tick bite (tick of the Ixodes family). The name Lyme disease refers to “Old Lyme”, a town in Connecticut in the United States where…
Pityriasis Rosea Dr Christophe HSU – dermatologist. Geneva, Switzerland What is pityriasis rosea? Pityriasis rosea is a kind of “skin flu”. It might also be caused by a virus. It is more common in young adults. It tends to have seasonal peaks. What does it look like? It is characterized clinically: initially, it presents as…
What are the types of lupus erythematosus ? There are three types: Systemic (or acute) lupus erythematosus: important involvement of the internal organs with or without skin manifestations. Subacute lupus erythematosus: moderate internal involvement with cutaneous manifestations. Discoid (or chronic) lupus erythematosus: skin involvement only. How does lupus erythematosus appear on the skin? Generally speaking,…
