Medicine Syndrome of Inappropriate secretion of Anti-Diuretic hormone (SIADH) may be seen in all of the following except? A Use of vincristine B Oat cell carcinoma of lung C Porphyria-acute attack D Primary pulmonary emphysema 💡 Explanation Syndrome of Inappropriate secretion of Anti-Diuretic hormone (SIADH) may be seen in all of the following except? ✓ Correct Answer: D. Primary pulmonary emphysema