18 February 2026
: Case report 
Retroperitoneal Bronchogenic Cysts: A Case Series
Challenging differential diagnosis, Rare disease
Shu-Xin Jing BCDEF 1, Zhi-Fei Jing ABCDEF 2*DOI: 10.12659/AJCR.950085
Am J Case Rep 2026; 27:e950085
Table 1 Case demographics, presentations, imaging features, preoperative diagnoses, and surgical information.
| Case | ||||||
|---|---|---|---|---|---|---|
| Case 1 | Case 2 | Case 3 | Case 4 | Case 5 | Case 6 | |
| Year | 2023 | 2024 | 2024 | 2024 | 2024 | 2025 |
| Sex | Male | Female | Male | Female | Male | Male |
| Age, yr | 51 | 32 | 21 | 27 | 41 | 56 |
| Side | Left | Left | Left | Left | Left | Left |
| Presentation | Pain | Asymptomatic | Asymptomatic | Asymptomatic | Asymptomatic | Asymptomatic |
| Width, cm | 3.9 | 8.9 | 4 | 3.8 | 5 | 3.3 |
| Height, cm | 1.6 | 8.3 | 1.8 | 1.3 | 3.2 | 2.7 |
| Shape | Fusiform | Ovoid | Fusiform | Fusiform | Fusiform | Irregular |
| NCCT, HU | 56 | 40 | 48 | 45 | 42 | 9~44 |
| CECT, HU | 56 | 40 | 59 | 56 | 42 | 22~62 |
| Calcification | No | No | Yes | Yes | No | Yes |
| Ultrasound | Hypoechoic mass with ill-defined margins | Multiple hyperechoic spots floating in a dense hypoechoic round mass with several septa | NA | Anechoic mass with irregular border and septa | Hypoechoic, with well-defined borders | NA |
| Preoperative diagnosis | Ganglione-uroma | Retroperitoneal mass | Bronchogenic cyst | Retroperitoneal mass | Adrenal adenoma | Ganglione-uroma |
| Endocrine test | Normal | Normal | NA | NA | Normal | Normal |
| Operative time, min | 113 | 95 | 54 | 59 | 95 | 90 |
| Follow-up | Asymptomatic 25 months after surgery | NA | 6 months | 6 months | 6 months | Asymptomatic 2 months after surgery |
| NCCT – non-contrast CT; HU – Hounsfield unit; CECT – contrast-enhanced CT. | ||||||