Case 1: " A 78-year-old female presents with alteration of consciousness for 6 days"
Case 2: "A-26-year-old female presents with mass at right shoulder for 6 months"
Case 3: "A 45-year-oldfemale presents with dyspnea on exertion for 4 months"
Case 4: "A 51-year-old male presents with alteration of consciousness for 7 hours"