Pathology EMQ.

Name: Angela Healey

Theme: Giardia, entamoeba, leishmania and other parasites

OPTION LIST

A	E. coli	I	Balantidium coli
B	Entamoeba histolytica	J	Plasmodium falciparum
C	Giardiasis	K	Pyogenic abscess
D	Hepatitis B	L	Staphylococcus aureus
E	Infectious mononucleosis	M	Taenia saginata
F	Leishmania	N	Toxoplasma gondii
G	Leptospirosis	O	Trichomonas vaginalis
H	Lyme borreliosis	P	Trypanosoma

For each scenario below, choose the most appropriate answer from the list above. Each option may be used once, more than once or not at all.

1. A homosexual man presents with bloody diarrhoea, tender hepatomegaly, malaise and a high swinging fever. Microscopic examination of fresh stool shows the presence of motile trophozoites containing red blood cells. Ultrasound scan shows the presence of a liver abscess.

2. A traveller returning from the tropics presents with diarrhoea, nausea, abdominal pain, distension and pale stools. Stool examination reveals cysts.

3. This sporozoa is transmitted by sandflies and manifests clinically with visceral, cutaneous or mucocutaneous signs and symptoms.

4. A patient’s notes say, ‘treated with metronidazole for 10 days; the abscess was drained percutaneously under ultrasound guidance and the bowel cleared of parasites with diloxanide furoate’. What parasitic infection did this patient have?

5. A 43 year cat-lover presents with influenza-like symptoms and lymphadenopathy.

ANSWERS

1. B

2. C

3. F

4. B

5. N