Ab	antibody
ART	antiretroviral therapy
AZM	azithromycin
BID	twice daily
CD4	cluster of differentiation 4
CSF	cerebrospinal fluid
CT	computed tomography
Dox	doxycycline
d	days
EIA	enzyme immunoassay
ERG	ETS-related gene
FTA ABS	fluorescent treponemal antibody absorption test
H&E	hematoxylin and eosin stain
HRA	high-resolution anoscopy
HIV	human immunodeficiency virus
IBD	inflammatory bowel disease
IHC	immunohistochemistry
IM	intramuscular
M	male
MRI	magnetic resonance imaging
MSM	men who have sex with men
NL	normal
NS	not stated
PCN G	penicillin G
PET FDG	positron emission tomography with fluorodeoxyglucose
RPR	rapid plasma reagin
TMP/SMX	trimethoprim/sulfamethoxazole
TPHA	Treponema pallidum hemagglutination assay
Trep EIA	treponemal enzyme immunoassay
TPPA	Treponema pallidum particle agglutination assay
VDRL	Venereal Disease Research Laboratory
WS stain	Warthin–Starry stain
Wt loss	weight loss
↑ diarrhea	increased diarrhea
hematemesis	vomiting of blood
wk	week