... tumors, or rarely from an aortic aneurysm. Chapter 034. Cough and Hemoptysis (Part 1) Harrison's Internal Medicine > Chapter 34. Cough and Hemoptysis Cough Cough is an explosive ... sinusitis, and pertussis), but more serious disorders, such as pneumonia, pulmonary embolus, and congestive heart failure, can also present in this fashion. Subacute cough (between 3 and 8 weeks) ... it has both afferent and efferent pathways. The afferent limb includes receptors within the sensory distribution of the trigeminal, glossopharyngeal, superior laryngeal, and vagus nerves. The...