This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
[{'content': 'Pulp space infection painful due to \nSelect and explain. \nA. Dense fibrous septae, B. Small phalynx, C. Rich blood supply, D. Rich nerve supply', 'role': 'user'}, {'content': "Answer: A \nExplanation: Pulp space infection (felon)Pulp space infection with pus trapped between the specialized fingeip septae cause intense fingeip painIt may lead to terminal phalangeal bone infection, erosion and sequestrum formation. The last of these will need to be drained and debridedA common differential diagnosis with small vesicles and crusts is the self-resolving herpetic whitlow, especially in dental workers, caused by the herpe simplex virus(Refer: SRB's Textbook of Surgery, 5th edition)", 'role': 'assistant'}]