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Micosis > Piedra negra > Flashcards

Piedra negra Flashcards

1
Q

Género

A

Piedraia

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2
Q

Especie

A

Piedraia hortae

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3
Q

Nicho ecológico

A

Suelo, agua, plantas, animales

No microbiota

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4
Q

Micología

A

División Ascomycete

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5
Q

Reproducción y ciclo biológico

A

Anamorfo, clamidoconidios
Teleomorfo, ascosporado

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6
Q

Estructuras diagnósticas

A

Examen directo
Ascomata fusiforma o subesférica con 2 a 8 ascosporas, tejido seudoparenquimatoso compacto, hifas septadas de paredes gruesas que simula artroconidios, dematiáceo

Cultivo
Hifa gruesa septada dicotómica dematiácea con muchos blastoconidios

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7
Q

Mecanismos de transmisión

A

Persona, fómites

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8
Q

Factores de riesgo

A

Humedad, falta de aseo

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9
Q

Epidemiología

A

Cosmopolita

Centro y Sudamérica

Tropical, subtropical, precipitación pluvial alta y frecuente

Mayormente 18-35 años zonas rurales, selva o bosque

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10
Q

Enfermedad

A

Piedra negra (Enfermedad de Horta, arenilla)

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11
Q

Descripción

A

Cronica, asintomático

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12
Q

Patogénesis

A

Espora tallo piloso, adhiere cutícula, no perfora
Cemento mucilaginoso

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13
Q

Signos y síntomas

A

Concreción parda o negra, bien limitada, fusiforme, duro, más pequeño que piedra blanca, cabello, barba, tercio distal pelo

Raro axila y pubis

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14
Q

Diagnóstico diferencial

A

Pediculosis

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15
Q

Tratamiento

A

Imidazoles

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Micosis (26 decks)

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