Update app.py

app.py

@@ -51,6 +51,11 @@ if page == "Patient Information":
 
     has_brain_mets = st.checkbox("Brain Metastases (Brain Mets)")
     brain_mets_primary_cancer = st.selectbox("Primary Cancer", ["Breast", "Lung", "Melanoma", "Colon", "Kidney", "Prostate", "Other"]) if has_brain_mets else None
+    brain_mets_regions = st.multiselect("Affected Brain Regions", [
+            "Frontal Lobe", "Parietal Lobe", "Temporal Lobe", "Occipital Lobe",
+            "Cerebellum", "Brainstem", "Multiple Regions", "Meninges (Leptomeningeal Spread)"
+        ])
+
     stage = st.selectbox("Stage of Cancer", ["I", "II", "III", "IV"])
     separation = st.number_input("Separation (cm)")
     machine = st.selectbox("Machine", ["Co-60", "LINAC", "Teletherapy"])