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Arsenical keratosis (AK) is growth of keratin on the skin caused by arsenic, [1]: 725 which occurs naturally in the Earth's crust and is widely distributed in the environment, [2] Arsenical compounds are used in industrial, agricultural, and medicinal substances.
The patient's medical history, the lesions' clinical appearance, and—most importantly—histopathology with the identification of typical histological characteristics are all important in the diagnosis of acquired perforating dermatosis.
Papules in perforating folliculitis are usually localized to areas of the extremities that bear hair. Lesions are often asymptomatic, though pruritus is a notable characteristic, particularly in those with impaired kidney function.
The patient's medical history, the lesions' clinical appearance, and, most importantly, histopathology with the identification of typical histological characteristics are all important in the diagnosis of acquired perforating dermatosis. [6]
The most common presentation of annular elastolytic giant-cell granuloma is one or more annular or ring-shaped patches with elevated borders, atrophy, and central hypopigmentation.
This is a shortened version of the twelfth chapter of the ICD-9: Diseases of the Skin and Subcutaneous Tissue. It covers ICD codes 680 to 709. The full chapter can be found on pages 379 to 393 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.
Actinic keratosis (senile keratosis, solar keratosis) Adenoid squamous cell carcinoma (pseudoglandular squamous cell carcinoma) Aggressive digital papillary adenocarcinoma (digital papillary adenocarcinoma, papillary adenoma) Basal cell carcinoma; Apocrine gland carcinoma; Apocrine nevus; Arsenical keratosis; Atrophic actinic keratosis
[6]: 562 [10] Multiple minute digitate hyperkeratosis , a rare cutaneous condition, with about half of cases being familial Focal acral hyperkeratosis (also known as "Acrokeratoelastoidosis lichenoides,") is a late-onset keratoderma , inherited as an autosomal dominant condition, characterized by oval or polygonal crateriform papules developing ...