Fungi/Protozoa/Helminths Flashcards Preview

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Flashcards in Fungi/Protozoa/Helminths Deck (142):
1

Associated with plant thorns and cutaneous injury

Sporthrix schenckii "rose gardeners disease"

2

Found in bird and bat droppings

Histoplasmosis

3

Mold form contains barrel-shaped arthroconidia

Coccidiodomycosis

4

Associated with dust storms

Coccidiodomycosis

5

Broad based budding

Blastomycosis

6

Multiple budding yeast form

Paracoccidioidomycosis

7

Latin America

Paracoccidioidomycosis

8

Captains wheel

Paracoccidioidomycosis
"Parasail to Latin American with the captain's wheel"

9

Smaller than RBC

Histo

10

Same size as RBC

Blasto

11

Larger than RBC

Coccid

12

Infections associated with birds (5)

Cryptococcus
Histoplasma
Chlamydophila psittaci
West Nile
H5N1

13

Treatment for Sporothrix schenckii

Itraconazole
Potassium iodide

14

Puppy bite

Yersinia

15

Animal urine

Leptospira
Hantavirus

16

Dimorphic fungi form at cold (20degrees) and warm (37degrees)

Cold = mold
Heat = yeast

17

What doesn't form a yeast in tissue?

Coccidiodomycosis forms spherule

18

Spherule in tissue

Coccidiodomycosis

19

Infects macrophages

Histoplasmosis
"hides in macrophages"

20

Granulomatous nodules on skin

Blasto

21

Mycerial in soil

Coccidiodomycosis

22

Tinea dermatophyte classes

Microsporum
Trichophyton
Epidermophyton

23

Branching septae hyphae visible on KOH prep with blue fungal stain

Tinea (dermatophytes)
Microsporum
Trichophyton
Epidermophyton

24

Cause of onchomycosis (thickened discolored nails)

Tinea unguium

25

Cause of tinea versicolor

Malassezia furfur
Yeast like fungus

26

Hypo pigmented skin or pink patches
Scaling plaque but not puritic
In the summer

Tinea versicolor caused by malassezia furfur

27

Spaghetti and meatballs appearance

Tinea versicolor caused by malessezia furfur

28

Narrow septate hyphe branch at 45 degrees

Aspergillus fumigatus

29

AIDS patient with meningitis

Cryptococcus

30

Heavily encapsulated yeast

Cryptococcus

31

Tx of Cryptococcus

Amphoteracin B + Flucotosine (Fluconazole)

32

Stains with India ink

Cryptococcus

33

Latex agglutination detects polysaccharide capsule

Cryptococcus

34

Soap bubble lesions in the brain

Cryptococcus

35

Narrow based budding with wide capsular halos

Cryptococcus

36

Broad irregular nonspetae hype branch at 90 degrees wide

Mucor
Rhizopus

37

Fungal infection in DKA

Mucor/Rhizopus

38

Proliferate in blood vessels and penetrate cribriform plate

Mucor/Rhizopus

39

Frontal lobe abscess
Cavernous sinus thrombosis
Black necrotic eschar on face
Cranial nerve involvement

Mucor/Rhizopus

40

Diffuse interstitial pneumonia in AIDS patients

PCP

41

Diffuse bilateral ground glass opacities on CXR

PCP

42

Disc shaped yeast on methenamine silver stain

PCP

43

Tx/Prophylaxis for PCP

TMP-SMX

44

Rose gardeners disease

Sporothrix Schneckii

45

Local pustule or ulcers draining along lymphatics

Sporothrix Schneckii

46

Double nuclei "owl's eyes"

Giardia lambia

47

Transmission through cysts in water

Giardia
Enatmoeba

48

Bloody diarrhea with liver abscess
RUQ pain
Flask shaped ulcers

Entamoeba histolytica

49

Trophozites interfere with fat absorption

Giardia

50

Severe diarrhea in AIDS
Water diarrhea in IC

Cryptosporidum

51

Oocysts on acid fast stain

Cryptosporidum

52

Prevented by filtering facilities

Cryptosporidium

53

Narrow septate hyphe branch at 45 degrees

Aspergillus fumigatus

54

AIDS patient with meningitis

Cryptococcus

55

Heavily encapsulated yeast

Cryptococcus

56

Rapidly fatal meningoencephalitis from swimming in freshwater lakes

Naegleria fowleri

57

Stains with India ink

Cryptococcus

58

Latex agglutination detects polysaccharide capsule

Cryptococcus

59

Soap bubble lesions in the brain

Cryptococcus

60

Narrow based budding with wide capsular halos

Cryptococcus

61

Broad irregular nonspetae hype branch at 90 degrees wide

Mucor
Rhizopus

62

Fungal infection in DKA

Mucor/Rhizopus

63

Proliferate in blood vessels and penetrate cribriform plate

Mucor/Rhizopus

64

Frontal lobe abscess
Cavernous sinus thrombosis
Black necrotic eschar on face
Cranial nerve involvement

Mucor/Rhizopus

65

Diffuse interstitial pneumonia in AIDS patients

PCP

66

Diffuse bilateral ground glass opacities on CXR

PCP

67

Disc shaped yeast on methenamine silver stain

PCP

68

Tx/Prophylaxis for PCP

TMP-SMX

69

Rose gardeners disease

Sporothrix Schneckii

70

Local pustule or ulcers draining along lymphatics

Sporothrix Schneckii

71

Double nuclei "owl's eyes"

Giardia lambia

72

Transmission through cysts in water

Giardia
Enatmoeba

73

Bloody diarrhea with liver abscess
RUQ pain
Flask shaped ulcers

Entamoeba histolytica

74

Trophozites interfere with fat absorption

Giardia

75

Severe diarrhea in AIDS
Water diarrhea in IC

Cryptosporidum

76

Oocysts on acid fast stain

Cryptosporidum

77

Prevented by filtering facilities

Cryptosporidium

78

Chorioretinitis
Hydrocephalus
Intracranial calcifications

Toxoplasma gondii congenital infection

79

Ring enhancing brain lesion in AIDS pt

Toxoplasma

80

Tx of lice and scabies

Permethrin + Pyrethrin

81

Enlarged lymph nodes
Recurring fevers (due to antigenic variation)
Somnolence
Coma

African sleeping sickness
Trypanosoma brucei
(want to keep it recurring with bruce)

82

Tsetse fly with painful bite

African sleeping sickness
Trypanosoma brucei

83

African sleeping sickness
Trypanosoma brucei Tx

Suramin for blood borne disease or melarsoprol for CNS penetration
(it SURe is nice to go to sleep with MELAtonin)

84

Tranmission of malaria

Anopheles mosquito

85

48 hr cycle of fever HA anemia and splenomegaly

P. vivax/ovale
(Very short Ciruclar fevers)

86

72 hr cycle of fever HA anemia and splenomegaly

P.malariae

87

Severe irregular fever patterns
Parsitized RBCs occlude capillaries in brain, kidneys and lungs

P.falciparum
(longest name for worst one)

88

Banana shaped gametocyte

P. falciparum

89

Diamond ring shaped

Early trophozoite

90

Tx of malaria

Cholorquine + Primaquine with P.vivax/ovale

91

Fever hemolytic anemia in Northeastern US

Babesiosis

92

Transmission of babes

Ioxodes tick, often coinfection with lyme disease

93

Ring form and maltese cross on blood smear

Babesia
Ring form = trophozoite
Maltese cross = merozoite

94

Tx Babesia

Quinine + Clindamycin

95

Dilated cardiomyopathy
Megacolon
Megaesophagus

Chugs disease from Trypanosoma cruzi

96

Transmission via reduviid bug
Kissing bug
Painless bite

T. cruzi

97

Tx T.cruzi?

Benznidazole or nifurtimox

98

Spiking fevers
Hepatosplenomegaly
Pancytopenia
Slowly healing ulcerating papules

Leishmania

99

Dx via macrophages containing amastigotes which lack flagella

Leishmania

100

Tx of Leishmania

Amphotericin B

101

Twitching motility on wet mount

Trichomonas vaginalis

102

Tx Trichomonas

Metronidazole

103

Tx of lice and scabies

Permethrin + Pyrethrin

104

Most common protozoal infection in US

Trichomonas

105

Amoebic dysentery

Entamoeba histolytica

106

Ingestion of larvae from raw freshwater fish

Diphyloobothrium latum

107

What malaria form ruptures the cell host?

Metrozoite

108

What malaria form looks like a diamond ring?

Trophozoite

109

What malaria form replicates intracellularly

Schizont

110

What malaria form is injected from the mosquito

Sphorozite

111

Nematodes transmitted fecal-oral

"EAT"
Enterobius
Ascaris
Trichinella

112

Nematodes transmitted from the soil

"SAND"
Strongolyoides
Ancylostoma
Necator
Duh!

113

Female worm lays egg at anus causing intense anal puritis and intestinal infection
+ scotch tape test

Enterobius

114

Can cause Loffler Eosinophilic Pneumonia

Ascaris

115

Pinworm

Enterobius

116

Giant roundworm

Ascaris

117

Epigastric pain

Strongyloides

118

Anemia and abdominal discomfort

Ancylocstoma
Necator

119

Hookworms

Ancylocstoma
Necator

120

Undercooked meat nematode

Trichinella

121

Encyst in striated muscle cells and cause infammation of muscle

Trichinella

122

Fever
Vomiting
Nausea
Periorbital edema
Myalgia

Trichinella

123

Elphantitis
Hydrocele of scrotum

Wuchereria bancrofti

124

Ingestion of larvae in undercooked pork

Taenia solium intestinal infection

125

Enters intestine
Perforates and travels to the lungs
Swallowed and enters GI tract

Ascaris
Strongyloides
Ancylostoma
Necator

126

Ingestion of Taenia sodium eggs

Cysticercosis
Neurocysticercosis = swiss cheese brain lesions

127

Tx Taenia solium and Diphylloborthrium

Praziquantel

128

Cestode/tapeworm caused Vit B12 deficiency

Diphyloobothrium latum

129

Ingestion of larvae from raw freshwater fish

Diphyloobothrium latum

130

Ingestion of egg from dog feces

Echinococcus granulosus

131

Hydatid cysts in liver cause antigens if released

Echinococcus grnaulosus

132

New immigrant with seizures altered mental status and other psych Sx brain cyts

Neurocysticercosis by Taenia solium

133

Snails are intermediate host then penetrate skin of humans

Shistosoma

134

Can lead to squamous cell carcinoma of the bladder

Shistosoma

135

Egyptian immigrant with hematuria

Schistosoma

136

Tx Schistosoma and Clonorchis

Praziquantel

137

Ingestion from undercooked fish

Clonorchis sinesis

138

Liver fluke

Clonorchis sinesis

139

Biliary tract inflammation
Pigmentated gallstones

Clonorchis sinesis

140

Associated with cholangiocarcinoma

Clonorchis sinesis

141

Portal hypertension
Liver and spleen enlargement

Schistosoma

142

Fungal rhinocerebral sinusitis

Invasive aspergillosis
Usually seen in immunocompromised patients