Picture Quiz Flashcards
What is this presentation
Chancroid
What is this?
DGI
1-2mm papules usually on extremeties
What is this
Chancroid
What is this and treatment
Gumma
LLS tx does not require steroids
What is this and tx
Palatal KS
Tx with ART (chemo considered if disseminated disease)
What is this + tx
Seb derm
Ketoconazole
Test for HIV
Echinococcus protoscoleces
Larval stage of canid tapeworm causing hydtid disease
very small – see under x40
Can also see loose hooks in hydatid cyst aspirates
Wet aspirate: fluid from Hydatid cysts aka ‘Hydatid Sand’ (Condenser 2)
what is this?
Verruga peruana - baríonella bacilliformis
what is this? how is it managed
tungiasis - surgery
S. mansoni egg
Plasmodium falciparum
Rings may possess one or two chromatin dots. They may be found on the periphery of the RBC (accolé, appliqué) and multiply-infected RBCs are not uncommon. Ring forms may become compact or pleomorphic depending on the quality of the blood or if there is a delay in making smears. There is usually no enlargement of infected RBCs.
Plasmodium falciparum
Rings may possess one or two chromatin dots. They may be found on the periphery of the RBC (accolé, appliqué) and multiply-infected RBCs are not uncommon. Ring forms may become compact or pleomorphic depending on the quality of the blood or if there is a delay in making smears. There is usually no enlargement of infected RBCs.
Gametocyte of plasmodium falciparum
Schizont p.falciparum
(rare to see in blood except in severe cases)
P. ovale
Developing trophozoites of P. ovale are compact with little vacuolation. Infected RBCs are often slightly enlarged and may exhibit fimbriation and Schüffner’s dots. Pigment is less-coarse and diffuse
P. vivax
Figure B: Trophozoite of P. vivax in a thin blood smear. Note the amoeboid appearance, Schüffner’s dots and enlarged infected RBCs.
P. ovale
Figure C: Trophozoite of P. ovale in a thin blood smear. Note the fimbriation and Schüffner’s dots.
Figure A: Trophozoite of P. vivax in a thick blood smear.
Developing trophozoites of P. vivax become increasingly amoeboid, with tenuous pseudopodial processes and large vacuoles. Schüffner’s dots are visible with proper staining. Pigment tends to be fine and brown. Infected RBCs are usually noticeably larger than uninfected RBCs.
Amastagotes of leishmania
Amastigotes of Leishmania are spherical to ovoid and measure 1-5 µm long by 1-2 µm wide. They possess a large nucleus, a prominent kinetoplast, and a short axoneme, the last of which is rarely visible by light microscopy. The organisms reside in macrophages of the host and can be found throughout the body.
Amastigotes of Leishmania spp. are morphologically indistinguishable from those of Trypanosoma cruzi
Just some normal macrophages for reference
Normal blood smear for reference
Figure A: Toxoplasma gondii tachyzoites, stained with Giemsa, from a smear of peritoneal fluid obtained from a laboratory-inoculated mouse.
Figure A: Toxoplasma gondii cyst in brain tissue stained with hematoxylin and eosin
Entamoeba Histolytica
Figure A: Cyst of E. histolytica/E. dispar in an unstained concentrated wet mount of stool. Notice the chromatoid bodies with blunt, rounded ends (arrow)
Entamoeba Histolytica
Figure A: Cyst of E. histolytica/E. dispar in an unstained concentrated wet mount of stool. Notice the chromatoid bodies with blunt, rounded ends (arrow)
Promastigotes Leish
Infective stage
Ascaris egg
unfertilised
Ascaris egg
Fertilised
Taenia Egg
See a tyre think Taenia
(cannot differentiate between solium and saginata)
Hookworm Egg
Thin shell - hatches early, does not need to be durable. Hatches to rhabiditiform –> filariform larvae (Infectious stage)
Segementum ovum
Trichuris Trhicura
tea tray
big
Fasicola
Treatment of triclabendazole 7/7 BD
Diphyllobothrium Latium
Fish tape worm
Which diseases is this a vector for?
Aedes
Dengue
Yellow fever
Zika
Chickungunya
Which diseases is this a vector for?
Culex
JEV
Yellow Fewer
WNV
Which diseases is this a vector for?
Anopheles
Malaria
Schistosoma Japonicum
Schistosoma Haematobium
Metacyclic trypamastigote (infectious stage)
T.Cruzi
T cruzi and brucei - pretty similar looking. Larger kinetoplast in cruzi
Cryptococcus neoformans
India ink stain
P. malariae trophozoite
band form
P. malariae schizont
Rosette
Wuncheria bancfroti microfilaria
Sheath pink
Empty tail
Nuceli relatively distinct
Loa Loa MF
Ghost sheath
Nuclei towards tail flattened
Brugia Timori
Empty head (Tim has an empty head)
More nuclei in tail
Onchocerciasis
Slab head (swollen empty head)
Empty tail
Onchocerciasis skin snip
Name each MF
