Table 1: Below presents the main features of the studies cited [2,5,6,8,9], together with their epidemiological, clinical and therapeutic data.

Author, year

Age (year)/Sex

Indication of JJ stent/Scope

Symptomatology

Time from insertion to presentation

Imaging performed

Affected/hematoma side

Treatment

Evolution

Altay [2], 2015

35, F

Lithiasis/Yes

Back pain

2 days

CT scan

Left/No

Repositioning

Favourable

Gönülalan [5], 2014,

66, M

Junction syndrome/Not reported

Vomiting, left flank pain and hematuria

1 week

X-ray

CT scan

Left (single renal) /No

Repositioning

Favourable

Nomikos [6],  2012

62; F

Lithiasis/Yes

Macroscopic,  abdominal tenderness

1 day

CT scan

Left/yes

Repositioning

Favourable

Liao [8], 2018

67, F

Lithiasis/Not reported

Hypoxia, hypotension

Immediate postoperative

X-ray, CT scan

Left/Yes

Withdrawal (one week later)

Favorable

Karaköse [9], 2011

63, F

Lithiasis/Not reported

irritative signs

1 day

X-ray, CT scan

Left/No

Change

Favourable

Our case

70 ans, M

prostate cancer/No

Back pain and oliguria

20 days

Ultrasound, CT scan

Bilateral

Change

Favourable