Incidence of Hippocampal Metastases: Laterality and Implications for Unilateral Hippocampal Avoiding Whole Brain Radiotherapy

Table 1

Basic clinical characteristics of included patients.

Characteristic	N = 260
Age (mean; years)	57.8
Sex (men; %)	125 (48.1%)
Primary diagnosis
NSCLC	79 (30.4%)
SCLC	34 (13.1%)
Lung-not verified	7 (2.7%)
Breast	48 (18.5%)
Melanoma	30 (11.5%)
GYN	13 (5.0%)
Unknown origin	11 (4.2%)
RCC	11 (4.2%)
GI	9 (3.5%)
GU	5 (1.9%)
others	13 (5.0%)
Initially disseminated	96 (36.9%)
Number of MTS
Mean	10.0
Median	3
IQR (25-75 %)	1-7

MTS: metastasis, NSCLC: non-small-cell lung cancer, SCLC: small-cell lung cancer, GI: gastrointestinal, GYN: gynecology, RCC: renal cell carcinoma, GU: genitourinal, and IQR: interquartile range