A 29-year-old woman was admitted due to persistent dry cough and dyspnea worsening nocturnally. She was exposed to stimulants for the last five months. She mentioned a contact with a pigeon before the development of her pulmonary manifestations. She was divorced, without any children, had an office work and smoked less than 2 cigarettes a day. In the following months the patient had out-patient visits and received antitussive and anti-allergic drugs and occasionally antibiotics which did not improve her symptoms.
Eventually, after about 4 months and emergence of mild constitutional symptoms she was admitted to the Pulmonary Department and diagnostic tests were performed along with imaging studies (Figure 1) .