Primary adrenal Ewing sarcoma: A systematic review of the literature

Table 1 Demographics and clinical characteristics

	Number of patients	Percentage (%)
Gender
Male	25	37.9
Female	38	57.6
Not reported	3	4.5
Age (yr)	26.4 ± 15.4 (range 2-74)
Presentation	Reported in 56 patients
Abdominal/flank pain	26	46.4
Palpable mass	14	25.0
Incidentaloma	10	17.9
Mean duration of symptoms	2.6 ± 3.1 mo (range 2-365 d)
Hormone hypersecretion	5/42	11.9
Imaging modality	Reported in 54 patients
CT scan	44	81.5
MRI	11	20.4
PET-CT	6	11.1
Not reported	12
Laterality	Reported in 56 patients
Right	27	48.2
Left	28	50.0
Bilateral	1	1.8
Not reported	10
Mean tumor size (cm)	11.4 ± 4.8 range 3-24

CT: Computed tomography; MRI: Magnetic resonance imaging; PET-CT: Positron emission tomography-computed tomography.