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any of several blood diseases causing subcutaneous bleeding (同)peliosis

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老年の,老衰の,(特に)もうろくした

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/12 08:17:47」(JST)

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Solar purpura (also known as "Actinic purpura," and "Senile purpura") is a skin condition characterized by large, sharply outlined, 1- to 5-cm, dark purplish-red ecchymoses appearing on the dorsa of the forearms and less often the hands.^[1]^:825

The condition is most common in elderly people of Caucasian descent. It is caused by sun-induced damage to the connective tissue of the skin.^[2]

No treatment is necessary. The lesions typically fade over a period of up to 3 weeks.^[3]

References

^ James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.
^ Scheinfeld NS (2009). "Skin Disorders in Older Adults: Vascular, Lymphatic, and Purpuric Dermatides, Part 1". Consultant 49 (6)
^ Actinic Purpura at eMedicine

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1. 斑状の皮膚病変を有する患者へのアプローチ approach to the patient with macular skin lesions
2. 紫斑ができやすい easy bruising
3. 皮膚小血管性血管炎の概要 overview of cutaneous small vessel vasculitis
4. ステロイドの全身投与の主な副作用 major side effects of systemic glucocorticoids
5. クッシング症候群の疫学および臨床症状 epidemiology and clinical manifestations of cushings syndrome

English Journal

Three cases of sacral pressure ulcers presenting primary dermatoporosis on the forearms.

Kurashige Y, Minemuta T, Nagatani T.SourceDepartment of Dermatology, Hachioji Medical Center, Tokyo Medical University, Tokyo, Japan.
Case reports in dermatology.Case Rep Dermatol.2013 Mar 14;5(1):73-8. doi: 10.1159/000350286. Print 2013 Jan.
The relatively new term dermatoporosis refers to chronic deficiencies in the skin's functions in the elderly population due to aging. This syndrome is marked by chronic cutaneous fragility clinically represented by skin atrophy, senile purpura, stellate pseudoscars, skin laceration, and dissecting h
PMID 23626543

Aging in elderly: chronological versus photoaging.

Durai PC, Thappa DM, Kumari R, Malathi M.SourceDepartment of Dermatology, STD and Leprosy, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India.
Indian journal of dermatology.Indian J Dermatol.2012 Sep;57(5):343-52. doi: 10.4103/0019-5154.100473.
BACKGROUND: Skin is a window to aging changes, a biological reality. There is a dearth of studies regarding the various chronological (intrinsic) aging and photoaging (extrinsic) changes seen in Asians. This study was undertaken to detect the clinical pattern of aging skin changes and dermatoses see
PMID 23112352

Japanese Journal

Senile purpura

FEINSTEIN RJ
Arch Dermatol 108, 229-232, 1973
NAID 30005387807

海産無脊椎動物の生殖腺の成熟に関する研究-1-イボニシの生殖腺にみられた季節的変化

今攸 [他],本間義治,村川新十郎
日本水産学会誌 32(6), 484-491, 1966
… The present paper deals with the seasonal histological changes in the gonads of the purple snail, Purpura clavigera, known as an enemy of young oysters and clams. … On the contrary, in a small number of the specimens regarded as the senile ones hole glands degenerate very rapidly. … It seems likely that the cells are homologous to the so-called free-cell reported by Nishiwaki15) of a very related species, Purpura bronni. …
NAID 130000913386