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: ENT
[{'content': 'Ranula is - \nSelect and explain. \nA. Hypertrophied lymphoid tissue, B. Arises from mucosa of floor of mouth, C. Hard and Hemorrhagic, D. An abscess', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ranula \n\nRanula, also known as mucous retention cyst, is a type of muscle found on the floor of mouth on one side of the frenulum.\nIt arises from sublingual salivary gland, due to obstruction of its duct and is almost always unilateral.\nIt occurs mostly in children and young adults.\n\nClinical features\n\nA ranula is usually asymptomatic, and only complain is fluctuant swelling with a bluish translucent colour.\nSwelling is painless unless it becomes secondarily infected.\nOverlying mucosa is intact and ranula is not fixed.\n\nTreatment\n\nSurgical excision of both the gland as well as the lesion. Ranulas are likely to recur if the sublingual gland causing them is not removed with the lesion.', 'role': 'assistant'}]