Darier like epidermal naevus =الوحمة البشروية الشبيهة بداء دارييه Darier like epidermal naevus Darier disease in a unilateral or localized pattern was first reported at the turn of the last century. This variant often lacked other features that were associated with typical Darier disease and the skin lesions were usually confined to a […]
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Darier’s sign = علامة دارييه Darier’s sign urtication and erythematous halo that are produced in response to rubbing or scratching of lesions of cutaneous mastocytosis. In classical Darier’s sign, gentle rubbing or stroking of the lesions, is followed by local itching, erythema and weal formation within 2-5 min. This may persist from 30min to several hours. […]
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Darier s disease=داء دارييه ▪ DARIER WHITE DISEASE Etiology and Pathogenesis DD is a rare autosomal dominant disease affecting both sexes and all ethnic groups. Its prevalence has been estimated at 1 in 26,300 in Slovenia, 1 in 30,000 in Scotland,1 in 36,000 in northeast England, and 1 in 100,000 in Denmark. Penetrance of the disease […]
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Degos’ disease – Malignant atrophic papulosis = الضمور الحطاطي الخبيث لديغوس Degos Disease- Malignant Atrophic Papulosis In the early 1940s, Köhlmeier first described malignant atrophic papulosis, whereas Degos, Delort, and Tricot recognized it as a specific entity a year later. We now know that the clinically distinctive lesion of the so-called Degos disease is a marker of a cutaneous thrombo-obliterative vasculopathy rather than of […]
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Delusions of parasitosis = وهم الاصابة بالطفيليات Delusions of parasitosis Delusions of parasitosis manifest in the patient’s firm belief that he or she has pruritus due to an infestation with insects. Patients may present with clothing lint, pieces of skin, or other debris contained in plastic wrap, on adhesive tape, or in matchboxes. They […]
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Demodicidiosis = داء الدويدات Demodicidosis Demodicidosis may present as pityriasis folliculitis, papulopustular lesions, rosacea-like eruptions, and granulomatous rosacea-like eruptions. The diagnosis of demodicidosis made by finding extrafollicular mites in the perifollicular inflammatory infiltrate. The papules resolved after 3 weeks of systemic and topical metronidazole, and low-dose oral prednisolone therapy. In summary, demodex granuloma may be […]
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Dermagraphism = الكتوبية الجلدية او الجلد القرطاسي dermographism The term dermographism literally means writing on the skin. Firm stroking of the skin produces an initial red line (capillary dilatation), followed by an axon-reflex flare with broadening erythema (arteriolar dilatation) and the formation of a linear wheal (transudation of fluid/edema) termed the triple response of […]
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Dermal melanocytosis =التملن الأدمي Dermal melanocytosis Mongolian spot refers to a macular blue-gray pigmentation usually on the sacral area of healthy infants. Mongolian spot is usually present at birth or appears within the first weeks of life. Mongolian spot typically disappears spontaneously within 4 years but can persist for life. Pathophysiology Mongolian spot […]
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Dermal naevu s= وحمة أدمية Dermal naevus The DERMAL NEVUS represents the most mature stage of a MELANOCYTIC NEVUS. Its MELANOCYTES have almost totally been replaced by NEVOCYTES, “neuroid” cells that have formed cells clusters within deeper layers of the skin. They are MOLES AT REST, and usually don’t change their aspects over time – […]
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