Acromegaly= ضخامة النهايات Acromegaly Growth hormone (GH) is secreted by the pituitary in a pulsatile fashion and reaches its maximum rate during puberty and then declines over time. The pulsatile pattern of secretion is equally important to the amount of hormone for normal function. Secretion of GH is primarily regulated by GH-releasing hormone (GHRH) and somatostatin. Recently, the […]
Read More
Acropustulosis=بثار النهايات Acropustulosis Infantile acropustulosis is a recurrent, self-limited, pruritic, vesicopustular eruption of the palms and the soles occurring in young children during the first 2-3 years of life. Newly described in 1979, infantile acropustulosis is probably much more common than the scarcity of reports would imply.1 Pathophysiology The pathophysiology of infantile acropustulosis is unknown. […]
Read More
Airborne contact dermatitisالتهاب الجلد بالتماس مع مواد منتقلة بالهواء Airborne contact dermatitis Allergic contact dermatitis to aerosol substances can produce an eruption on exposed skin that resembles a photodermatitis. Involvement of typically sun-spared areas such as upper eyelids or submental areas suggests airborne contact dermatitis. Typically, relatively sheltered areas are spared. A careful history […]
Read More
Actinic cheilitis=التهاب الشفتين الضيائي ACTINIC CHEILITIS Actinic cheilitis, a premalignant condition due to chronic ultraviolet light exposure, typically affects the lower lip, resulting in an ill-defined, atrophic, white, scaling plaque that may obliterate the vermillion border. Microscopically, solar elastosis, hyperkeratosis, and atypical basal keratinocytes are seen. Any ulceration or induration requires a biopsy to rule out malignant transformation
Read More
Actinic comedones= الزؤان الضيائي Actinic comedones Solitary plaques developed on the sun-exposed and damaged skin of five elderly, fair-skinned individuals. The lesions, erythematous to bluish confluent nodules and plaques with a cribriform appearance and comedone-like structures, presented a distinctive histologic picture of dilated, keratin-filled follicles within a matrix of amorphous, damaged collagen. We believe […]
Read More
Actinic dermatitis = التهاب الجلد الضيائي Chronic Actinic Dermatitis EPIDEMIOLOGY Chronic actinic dermatitis (CAD) has regularly been diagnosed in the United Kingdom, continental Europe, United States, Australia, New Zealand, Japan, and India, and patients from Africa have also been seen. The disorder therefore appears to be of worldwide incidence and to affect all skin […]
Read More
Actinic granuloma= الحبيبوم الضيائي Actinic granuloma Actinic granuloma is a granulomatous reaction occurring in profoundly sun-damaged skin. Appearing as an erythematous papule, the lesion expands as a red, raised ring, often with central atrophy being evident. Lesions are usually asymptomatic Treatment: The application of potent topical glucocorticoids to the advancing edge is […]
Read More
Actinic keratoses=التقران الضيائي Actinic keratoses Actinic keratosis (AK) is a UV light–induced lesion of the skin that may progress to invasive squamous cell carcinoma.1,2,3 It is by far the most common lesion with malignant potential to arise on the skin. Actinic keratosis is seen in fair-skinned persons on skin areas that have had long-term sun exposure.4 In […]
Read More
Actinic prurigo=الأكال الضيائي Actinic Prurigo EPIDEMIOLOGY Actinic prurigo (AP) appears to occur throughout much of the world. Native Americans at all latitudes are particularly affected but also, more rarely, inhabitants of the United Kingdom, the United States, Europe, Australia, and Japan. PATHOGENESIS AP appears to be UVR induced, in that it is more severe in spring […]
Read More
Actinomycosis= داء الشعيات ▪ ACTINOMYCOSIS Epidemiology Described by Israel in 1878, the disease has a worldwide distribution. It is more commonly seen in males, ages 20 to 60 years old, with females affected at a younger age. In the pre-antibiotic era, the incidence in the Netherlands and Germany was 1:100,000 inhabitants/year; in the […]
Read More