You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Superior sulcus tumor of the lungs characteristically presents with: and explain in detail?
Ans: A. Ref: Robbins Pathologic Basis of Disease, 8th edition Explanation: Apical lung cancers in the superior pulmonary sulcus tend to invade the neural structures around the trachea, including the cervical sympathetic plexus. It produces a group of clinical findings that includes severe pain in the distribution of the ulnar nerve and Horner syndrome (enophthal- mos, ptosis, miosis, and anhidrosis) on the same side as the lesion. Such tumors are also referred to as Pancoast tumors.