This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Rain drop skull appearance is seen 
Select and explain. 
A. Multiple myeloma, B. Eosinophilic granuloma, C. Pagets disease, D. Sickle cell anemia
A: Multiple myeloma
Answer: A: Multiple myeloma 
Explanation: Ref. Grainger and Allison's Diagnostic Radiology. Page. 409
 
MULTIPLE MYELOMA –RAIN DROP APPERANCE /PUNCHED OUT LESIONS IN THE SKULL
Imp radiological features –

Expansile osteolytic lesions associated with soft tissue masses
Diffuse osteolysis or generalised osteoporosis
Periosteal new bone formation is characteristically absent
Spine –diffuse lytic lesions