Microbio- fungi/parasites

Question 1

what does cutaneous mycoses cause

Answer 1

Dermatophytes

Question 2

What are the 4 types of cutaneous mycoses

Answer 2

Tinea pedis- athletes foot

Tinea corposis- Ringworm- creates lesion with annular ring appearance and periphery of ring is active fungal growth

Tinea capitis- scalp ringworm

Tinea cruris- jock itch

Question 3

What is subcutaneous mycoses caused by

Answer 3

usually reside in soil and decaying veg

Question 4

What are the two subcutaneous mycoses

Answer 4

Sporotrichosis- characterized by a ganulomatous ulcer at the puncture site

Chromomycosis- characterized by warty nodules that spread along and develop crusty abcesses

Question 5

What are the systemic mycoses

Answer 5

Coccidiomycosis
Histoplasmosis
Blasyomycosis

Question 6

What is Coccidomycosis

Answer 6

Spors that become airborne and enter lungs which form spherules which rupture causing meningitis

Question 7

What is histoplamosis

Answer 7

may cause acute but relatively benign pulmonary infection (fatal sometimes in those w AIDS)

Question 8

What is blastomycosis

Answer 8

initially causes pulmonary inf that rarely disseminates but if it does secondary sites include skin and GI tract where they manifest as ulcerated granulomas

Question 9

What are the opportunistic mycoses (4)

Answer 9

Candidiasis
Cryptococcosis
Aspergillosis
Pneumocytitis jiroveci

Question 10

What is candidiasis caused by and s/s

Answer 10

Candida albicans

-causes oral thrush, white plaques on oral mucosa, tongue, gums

Question 11

What is cryptococcosis caused by and what does it cause

Answer 11

caused by cryptococcus neoformans- causes meningitis

Question 12

What is aspergillosis caused by and s/s

Answer 12

Aspergillus fumigatus
-can range from severe lung inf that travels to brain or milder form; creases aspergilloma that forms in lungs

Question 13

What does pneumocytitis jiroveci cause

Answer 13

causes severe form of pneumonia and 100% fatal if left untx

Question 14

What are the two major intestinal protozoal inf + what do they generally cause

Answer 14

Each cause dysentery

Amebic Dysentery (by Entamoeba histolytic)- causes dysentery

Giardiasis (by Giardia lambia)- causes dysentary and in massive inf can inflame duodenal mucosa

Question 15

What does trichomoniasis cause

Answer 15

Trichomoniasis vaginalis- in females, causes inflammation of the mucosal tissue of the vag, vulva and cervix

Question 16

What is malaria caused by and patho

Answer 16

Plasmodium falciparum- in blood they go to liver forming cysts and invade RBCs causing them to explode and cause sudden fever

Question 17

What does toxoplasma gondii cause

Answer 17

Toxoplasmosis- can be rapid or slow growing and they attack muscle and brain tissue causing necrosis