Case 1: “A 31-year-old man presented with chronic progressive exophytic mass at right leg for 3 months”
Case 2: “A 72-year-old female presented with chronic non-productive cough for 3 months”
Case 3: “A 51-year-old man presented with fever and dyspnea for 1 week”
Case 4: “A 56-year-old woman presented with a solitary mass at right knee for 3 months”