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Other Skin Diseases Picture Cause Basic Lesion

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page: 225 Chapter 11: alphabetical Other skin diseases picture cause basic lesion search contents print last screen viewed back next Other skin diseases Pityriasis rosea page: 226 11.1 Pityriasis rosea alphabetical The eruption consists of pink oval patches measuring 1 to 3 cm in diameter, with fine scaling in a peripheral collarette. The initial lesion, looking like an oval picture medallion, can usually be recognized by its larger size (diameter 5 to 6 cm) and its accentuated margin. cause basic lesion Basic Lesions: Erythematous Macule; Scales Causes: None specific search contents print last screen viewed back next Other skin diseases Pityriasis rosea page: 227 alphabetical Pityriasis rosea continued Its oblique orientation on the trunk is characteristic. picture cause basic lesion Basic Lesions: Erythematous Macule; Scales Causes: None specific search contents print last screen viewed back next Other skin diseases Parapsoriasis page: 228 11.2 Parapsoriasis alphabetical Pityriasis lichenoides ("guttate parapsoriasis") The polymorphic eruption is spread picture over the trunk and the limbs. It consists of red or brownish and more or less scaly maculopapular lesions. The characteristic feature is a brownish macule covered with cause an adherent scale, which detaches in one piece. basic lesion Basic Lesions: Erythematous Macule; Scales Causes: None specific search contents print last screen viewed back next Other skin diseases Parapsoriasis page: 229 alphabetical Varioloid parapsoriasis The eruption affects the trunk and the limbs, it is polymorphic: papulopustular lesions, necrotic, picture often haemorrhagic lesions, crusts, varioloid scars. cause basic lesion Basic Lesions: Dermal Papules; Pustules; Crusts; Scars Causes: None specific search contents print last screen viewed back next Other skin diseases Parapsoriasis page: 230 alphabetical Varioloid parapsoriasis continued picture cause basic lesion Basic Lesions: Dermal Papules; Pustules; Crusts; Scars Causes: None specific search contents print last screen viewed back next Other skin diseases Parapsoriasis page: 231 alphabetical Chronic superficial scaly dermatitis (digitate dermatosis) The lesions are oval, 2 to 5 cm in picture diameter, well-circumscribed, flat and yellowish pink with fine scaling. These patches are disposed in lines, the position of which is fairly stereotyped: slanting along cause the ribs on the trunk, longitudinal on the limbs. basic lesion Basic Lesions: Erythematous Macule; Scales Causes: None specific search contents print last screen viewed back next Other skin diseases Parapsoriasis page: 232 alphabetical Premycotic or prereticulotic eruption with large plaques The lesions consist of wide plaques picture (10 to 20 cm in diameter) located on the trunk and the base of the limbs. Their appearance is polymorphic: sepia-coloured scaly erythematous plaques, atrophic or cause even poikilodermal lesions. basic lesion Basic Lesions: Erythematous Macule; Scales Causes: None specific search contents print last screen viewed back next Other skin diseases Lichen planus page: 233 11.3 Lichen planus alphabetical Simple cutaneous lichen planus The basic lesion is a firm reddish- picture violet polygon. The surface, which has a sheen in oblique illumination, is covered with fine greyish striations known as Wickham's striae. cause basic lesion Basic Lesions: Dermo-epidermal Papules Causes: None specific search contents print last screen viewed back next Other skin diseases Lichen planus page: 234 alphabetical Simple cutaneous lichen planus continued One of the preferred sites is the picture flexor surface of the forearm. cause basic lesion Basic Lesions: Dermo-epidermal Papules Causes: None specific search contents print last screen viewed back next Other skin diseases Lichen planus page: 235 alphabetical Simple cutaneous lichen planus continued Papules may appear along the picture excoriations caused by scratching (Koebner's phenomenon). cause basic lesion Basic Lesions: Dermo-epidermal Papules Causes: Mechanical Factors search contents print last screen viewed back next Other skin diseases Lichen planus page: 236 alphabetical Oral lichen planus The lesions are white and reticulated. Their preferred site is the tongue and the lower posterior picture part of the cheeks ("fern-leaf" appearance). cause basic lesion Basic Lesions: Achromic macules Causes: None specific search contents print last screen viewed back next Other skin diseases Lichen planus page: 237 alphabetical Oral lichen planus continued A rare form is erosive lichen planus: painful red ulcerations with no tendency towards picture spontaneous healing. The ulcers are surrounded by a lichen-like whitish border. cause basic lesion Basic Lesions: Achromic macules; Ulcers Causes: None specific search contents print last screen viewed back next Other skin diseases Lichen planus page: 238 alphabetical Hypertrophic lichen planus The lesions are oval or coalescent, infiltrated, and pink or violet in colour. Their surface is picture hyperkeratotic. The skin disease classically affects the front of the legs. cause basic lesion Basic Lesions: Warts Causes: None specific search contents print last screen viewed back next Other skin diseases Lichen planus page: 239 alphabetical Hypertrophic lichen planus continued picture cause basic lesion Basic Lesions: Warts Causes: None specific search contents print last screen viewed back next Other skin diseases Lichen planus page: 240 alphabetical Lichen planus of the nails Dorsal pterygium and flaps of nail at the sites. picture cause basic lesion Basic Lesions: None specific Causes: None specific search contents print last screen viewed back next Other skin diseases Graft versus host disease (GVHD) page: 241 11.4 Graft versus host disease (GVHD) alphabetical In the subacute stage the graft's reaction against the host can appear as a lichenoid eruption. The lesions are spread all over the skin. picture cause basic lesion Basic Lesions: Dermo-epidermal Papules Causes: None specific search contents print last screen viewed back next Other skin diseases Graft versus host disease (GVHD) page: 242 alphabetical Graft versus host disease (GVHD) continued The lesions are spread all over the picture skin and can involve the mucosa. cause basic lesion Basic Lesions: Achromic macules; Dermo- epidermal Papules Causes: None specific search contents print last screen viewed back next Other skin diseases Lichenification page: 243 11.5 Lichenification alphabetical Well-demarcated thick itchy hyperkeratotic patch on the ankle, forming a grid of scratch lines. The term neurodermatitis is sometimes used to describe this phenomenon. picture cause basic lesion Basic Lesions: Keratoses; Excoriations (or Ulcerations) Causes: Mechanical Factors search contents print last screen viewed back next Other skin diseases Subacute prurigo page: 244 11.6 Subacute prurigo alphabetical The excoriated papules are disposed symmetrically on the extensor surfaces of the limbs, the upper back, and sometimes on the face and the scalp. picture cause basic lesion Basic Lesions: Dermo-epidermal Papules; Excoriations (or Ulcerations) Causes: None specific search contents print last screen viewed back next Other skin diseases Subacute prurigo page: 245 alphabetical Subacute prurigo continued picture cause basic lesion Basic Lesions: Dermo-epidermal Papules; Excoriations (or Ulcerations) Causes: None specific search contents print last screen viewed back next Other skin diseases Lupus erythematosus page: 246 11.7 Lupus erythematosus alphabetical Discoid lupus erythematosus 1. Face The eruption consists of erythematous patches covered with picture an adherent hyperkeratotic layer, predominantly at the hair follicles. It resolves into cicatricial atrophy. cause basic lesion Basic Lesions: Erythematous Macule; Keratoses Causes: Sunlight, Ultraviolet Radiation search contents print last screen viewed back next Other skin diseases Lupus erythematosus page: 247 alphabetical Discoid lupus erythematosus continued 1. Face picture The erythema is associated with severe oedema, producing one or more swollen patches with distinct margins, a smooth surface, and an oedematous consistency. A rare cause form is lupus erythematosus tumidus. basic lesion Basic Lesions: Erythematous Macule; Keratoses Causes: Sunlight, Ultraviolet Radiation search contents print last screen viewed back next Other skin diseases Lupus erythematosus page: 248 alphabetical Discoid lupus erythematosus continued 2. Scalp picture This consists of erythematous and somewhat atrophic alopecic plaques which heal with scarring. cause basic lesion Basic Lesions: Erythematous Macule; Atrophy; Scars Causes: Sunlight, Ultraviolet Radiation search contents print last screen viewed back next Other skin diseases Lupus erythematosus page: 249 alphabetical Subacute lupus erythematosus The eruption corresponds to a profuse form consisting of erythematous and somewhat scaly picture polycyclic annular plaques which resolve to leave depigmentation and telangiectasia. cause basic lesion Basic Lesions: Erythematous Macule; Scales Causes: Sunlight, Ultraviolet Radiation search contents print last screen viewed back next Other skin diseases Lupus erythematosus page: 250 alphabetical Systemic lupus erythematosus 1. Face The eruption is in the form of slightly oedematous erythematous picture sheets, without atrophy or follicular hyperkeratosis. The lesions are often symmetrical and located on areas exposed to the sun ("butterfly" appearance). cause basic lesion Basic Lesions: Erythematous Macule
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