Parasitologia 2 aula

Schistosoma mansoniciclo biológico

1. Ovo de Schistosoma mansoni visto nas fezes(100X).2. Schistosoma mansoni macho e fêmea

                                                                                                                       

                                                       

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• Ovos de Schistosoma mansoni, nos diferentes estágios, visualizados no oograma (200X).

                                                                                                              

Taenia spCiclo biológico de T. saginata e T. solium

•Taenia solium

• 1 a 4 metros; • escólex com 4 ventosas, com um rostro armado com dupla hélice de acúleos;• 700 a 900 proglotes;• Ramificações uterinas pouco numerosas;• Proglotes eliminadas de forma passiva;

•Taenia saginata

• 4 a 10 metros;• escólex com 4 ventosas;• 1000 a 2000 proglotes;• Ramificações uterinas numerosas;• Proglotes eliminadas ativamente;

• Ovo de Taenia sp nas fezes (400X).

 

                                                                                                                                                                                                 

Diferenças

• Escólex de Taenia solium, corado pelo carmim acético, mostrando as quatro ventosas e o rostro (200X).

• Escólex de Taenia saginata

                                                                                                                                                                              

Cisticercoseciclo

Taenia sp.

Complexo Teníase-Cisticercose

Cisticerco

Cisticerco

Cisticerco

Diagnóstico sorológico (w. Blot)PCR

Hymenolepis nanaciclo

Hymenolepis nana

• Ovo de Hymenolepis nana (400X). Tamanho: 30 – 47 um

 

                                                                                                                                                                                                 

Hymenolepis diminutaciclo

Hymenolepis diminuta

• Ovo de Hymenolepis diminuta (200X). Tamanho: 70 – 85 um

 

                                                                                                                                                                                                 

Ascaris lumbricoidesciclo

• Ovo fértil de Ascaris lumbricoides com membrana mamilonada (400X).

                                                                                                                       

                                                       

• Ovo infértil de Ascaris lumbricoides com membrana mamilonada (400X).

                                                                                                                                                                              

• Ovo de Ascaris lumbricoides sem a membrana mamilonada (400X)

                                                                                                                                                                              

Trichuris trichiuraciclo

Trichuris trichiura

1. Ovo de Trichuris trichiura (400X). 2. Trichuris trichiura adulto fêmea

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• Ovo de Trichuris trichiura larvado (400X).  

                                                                                                                                                                              

Enterobius vermicularis

1. Ovo de Enterobius vermicularis com células germinativas (400X).

2. Enterobius vermicularis macho

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• Ovo de Enterobius vermicularis larvado (400X).

                                                                                                                                                                              

• Ovos de Enterobius vermicularis (400X) obtidos pelo Método de Graham (fita durex).

                                                                                                                                                                              

• Fêmea de Enterobius vermicularis mostrando as asas cefálicas (400X).

Ancilostomídeos

• Ovo de Ancilostomídeo (400X). Não é possível fazer a distinção entre os ovos de Ancylostoma duodenale e Necator americanus, embora esse último seja ligeiramente maior.

 

                                                                                                                                                                                                 

• Larva de ancilostomídeo, corada pelo lugol, caracterizada pela presença de vestíbulo bucal longo (1000X).

                                                                                                                                                                              

• Larva de Strongyloides stercoralis corada pelo lugol (400X). Presença de primórdio genital(1) e vestíbulo bucal curto(2).

 

                                                                                                                                                                                                 

RESULTADO DO E.P.F.: • É qualitativo – deve-se usar:- “Negativo para a amostra analisada” ou “Não foram encontrados cistos, ovos ou larvas de parasitas”. - Presença de ovos de ______- Presença de cistos de _______- Presença de trofozoítos de _______- Presença de oocistos de________- Presença de larvas de _______- Presença de proglotes de Taenia solium- Utilizar nomenclatura científica Resultados quantitativos : em desuso.