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Onychomycosis (tinea unguium) is dermatophyte infection of nail plate/bed. Onychomycosis = dermatophyte/yeast/non-dermatophyte nail infection. Two types: (1) white superficial onychomycosis (limited to nail surface/tip); (2) subungual (distal lateral/prox
皮肤科Tinea barbae is superficial fungal infection of beard area; same as tinea capitis but different pathogen/site. Worldwide; common in Europe/America; Xinjiang ethnic areas; farmers in close animal contact.
皮肤科Tinea capitis is superficial fungal infection of scalp/hair; divided into favus, white ringworm, black-dot ringworm. Children; contagious in daycare/school/family. Spread by contaminated combs or infected cats/dogs.
皮肤科RSV causes characteristic syncytia in cell culture; serious infant LRTI, occasional rash. Droplet-spread; wide spread/high attack/prolonged; annual/biennial epidemics worldwide.
皮肤科Papovaviridae = papilloma/polyoma/simian vacuolating virus; two genera (Papillomavirus, Polyomavirus), oncogenic DNA viruses.
皮肤科Molluscum contagiosum is a self-inoculating poxvirus skin disease: discrete pearly umbilicated hemispherical papules expressing cheesy molluscum bodies. Children/young adults. Spread by direct contact (public baths/pools), autoinoculation, or sexually.
皮肤科Milker's nodule (paravaccinia/pseudocowpox) is a viral dermatosis from contact with pseudocowpox virus during milking.
皮肤科Cowpox is acute infection of cow teats/udders by cowpox virus, transmitted by contact to milker/slaughterhouse workers. WHO reports now eradicated globally. Infection in humans causes mild illness and confers cross-immunity to smallpox (basis of Jennerian
皮肤科Warts are viral epidermal growths (Nei Jing). Children/young adults; incubation 1-3 months; autoinoculable. Virus in stratum spinosum stimulates epidermal hyperplasia. Types: common/flat/molluscum/condyloma acuminatum.
皮肤科Common warts are benign HPV skin tumors (TCM: thorn warts). Adolescents; fingers/dorsal hands/foot edges. Skin/mucosal breaks are the main cause. Early: hard gray-yellow rough papules; slow course, may regress spontaneously; topical/surgical treatment.
皮肤科Flat warts are viral skin growths caused by HPV3/HPV5 (same virus as common warts). Dispersed soft smooth-topped millet-to-mung-bean sized flat papules, light brown, on face/dorsal hands; highly contagious.
皮肤科Filiform warts are thin thread-like benign epidermal growths ("thread warts"), caused by HPV, moderately contagious, common on the face/eyelids/neck of women >30 years. Treatment: laser/cryosurgery/excision.
皮肤科Monkeypox is an Orthopoxvirus zoonosis of central/west African rainforest monkeys, can infect other animals and occasionally humans. Clinically smallpox-like but milder. Human monkeypox (Yaba monkey virus disease) rarely human-to-human; bite/scratch → 5-7
皮肤科Rickettsioses are a group of acute infections caused by Rickettsiales organisms, worldwide/endemic, ranging in severity. Vectors: arthropods (ticks/lice/fleas/mites); also cat/dog scratches/bites. Most present as fever-headache-rash triad in spring/summer
皮肤科Condyloma acuminatum (genital/venereal warts) is an STD caused by HPV. Incubation ~3 months (3 weeks to >8 months average). Mostly sexually active people, peak 20-30 years. Clinical: pointed, moist-surfaced papillary warts.
性病科Genital herpes (GH) is herpes simplex of the genital region, a viral contagious skin disease (TCM: hot sores). Unlike perioral HSV, it is mostly sexually transmitted.
性病科Trichomoniasis is a contagious parasitic disease mainly sexually transmitted. Three human Trichomonas species: T. vaginalis (GU tract), T. hominis (intestine), T. tenax (mouth). T. vaginalis causes vaginitis. 70% are asymptomatic; women's discomfort may l
性病科Granuloma inguinale (donovanosis) is a chronic mildly contagious STD caused by Klebsiella granulomatis. In infected tissue the organism appears as intracellular oval bodies (Donovan bodies). It features granulomatous plaques, painless ulcers on anogenital
性病科Chancroid (third venereal disease) is a classic STD caused by Haemophilus ducreyi, sexually transmitted, characterized by one or more painful genital ulcers with suppurative inguinal lymphadenopathy.
性病科LGV is an STD caused by Chlamydia trachomatis, presenting as acute-to-chronic genital lesions with regional lymphadenopathy. Synonyms: tropical bubo, climatic bubo, Durand-Nicolas-Favre disease, fourth venereal disease.
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