Table 1

Participant clinical diagnoses, dates of PET scans, PET scan results and follow-up syphilis results at 3 months, Lima, Peru, 2015

ID #	PET scan date	Age	HIV status	On ART	Baseline CD4 and viral load	Adenopathy (lymphatic)	Aortic inflammation	Cerebral inflammation	Syphilis stage and prior quantitative RPR titres	RPR result
1	February 2015	50	HIV infected	Yes	CD4: 380 cell count, mm³/mL VL: 15 000 copies/mL	Small neck and axillary, larger inguinal adenopathy	Aortitis	None	Early latent syphilis 3 months prior RPR titre non-reactive	1:256
	n/a
	May 2015					None	None	None		1:16
2	April 2015	21	HIV infected	No	CD4: 444 cell count, mm³/mL	Bilateral inguinal	Aortitis	None	Latent syphilis, unknown duration 15 months prior RPR titre non-reactive	1:128
					VL: 8000 copies/mL	Bilateral auxiliary
						Bilateral neck
	May 2015					Bilateral inguinal	None	None
						Bilateral auxiliary
						Neck improved, but still present
	July 2015					Neck improved, but still present	None	None		1:8
						Bilateral inguinal and axial
3	May 2015	37	HIV infected	Yes	CD4: 600 cell count, mm³/mL VL: <400 copies/mL	None	None	None	Early latent syphilis 3 months prior RPR titre 1:4	1:64
	June 2015					None	None	None
	August 2015					None	None	None		1:8
4	June 2015	25	HIV infected	Yes	CD4: 308 cell count, mm³/mL VL: 4000 copies/mL	Extensive neck adenopathy, bilateral auxiliary, abdominal and retro peritoneal adenopathy, bilateral inguinal adenopathy	Mild aortitis	None	Latent syphilis, unknown duration 21 months prior RPR titre non-reactive	1:128
	July 2015					Extensive neck adenopathy/bilateral auxiliary/abdominal + retroperitoneal adenopathy/bilateral inguinal	None	None
	September 2015					Neck, auxiliary, inguinal, retroperitoneal and abdominal improved but still present	None	None		1:16
5	July 2015	32	HIV uninfected			Significant neck adenopathy	Mild aortitis	None	Secondary syphilis No prior RPR results (baseline visit)	1:64
	August 2015					Bilateral neck/small bilateral inguinal (same as first)	None	None
	October 2015					Neck, auxiliary and inguinal adenopathy gone	None	None		1:4
6	November 2015	31	HIV uninfected			Neck bilateral lymphadenopathy, mediastinum, bilateral auxiliary, inguinal and iliac adenopathy	Mild aortitis	None	Secondary syphilis No prior RPR results (baseline visit)	1:128
	December 2015					Improved adenopathy in neck, auxiliary and mediastinum improved but not disappeared. Iliac improved but not gone	None	None
	January 2016					Neck gone, auxiliary gone, inguinal gone	None	None

PET, positron emission tomography; RPR, rapid plasma reagin; VL, viral load.