This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lymphatic System, Subject name: Surgery
[{'content': "Which of the following are seen in chronic lymphedema? \nSelect and explain. \nA. Buffalo hump, B. Square toes, C. Stemmer's sign, D. All of the above", 'role': 'user'}, {'content': "Answer: D \nExplanation: Signs of Chronic Lymphedema Buffalo hump - Contour of the ankle is lost through infilling of the sub malleolar depressions, a 'buffalo hump' forms on the dorsum of the foot Square toes - Toes appear 'Square because of confinement of footwear Stemmer's sign - Skin on the dorsum of the toes cannot be pinched because of subcutaneous fibrosis", 'role': 'assistant'}]