title: Do inhaled corticosteroids increase the risk of Pneumocystis pneumonia in people with lung cancer?
abstract: Pneumocystis pneumonia (PCP) is a life-threatening infection in immunocompromised patients. It is relatively uncommon in patients with lung cancer. We report a case of PCP in a 59-year-old man with a past medical history of chronic obstructive pulmonary disease treated with formoterol and a moderate daily dose of inhaled budesonide. He had also advanced stage non-small lung cancer treated with concurrent chemo-radiation with a cisplatin-etoposide containing regimen. The diagnosis of PCP was suspected based on the context of rapidly increasing dyspnea, lymphopenia and the imaging findings. Polymerase chain reaction testing on an induced sputum specimen was positive for Pneumocystis jirovecii. The patient was treated with oral trimethoprim-sulfamethoxazole and systemic corticotherapy and had showed clinical and radiological improvement. Six months after the PCP diagnosis, he developed a malignant pleural effusion and expired on hospice care. Through this case, we remind the importance of screening for PCP in lung cancer patients under chemotherapeutic regimens and with increasing dyspnea. In addition, we alert to the fact that long-term inhaled corticosteroids may be a risk factor for PCP in patients with lung cancer. Despite intensive treatment, the mortality of PCP remains high, hence the importance of chemoprophylaxis should be considered.
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Sameh
authors.initials: S
authors.lastname: Msaad
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Ilhem
authors.initials: I
authors.lastname: Yangui
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Najla
authors.initials: N
authors.lastname: Bahloul
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Narjes
authors.initials: N
authors.lastname: Abid
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Makram
authors.initials: M
authors.lastname: Koubaa
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Yosr
authors.initials: Y
authors.lastname: Hentati
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Mounir
authors.initials: M
authors.lastname: Ben Jemaa
authors.affiliation: Sameh Msaad, Ilhem Yangui, Najla Bahloul, Narjes Abid, Samy Kammoun, Department of Respiratory Medicine, Hedi Chaker University Hospital, 3029 Sfax, Tunisia.
authors.forename: Samy
authors.initials: S
authors.lastname: Kammoun
keywords: Inhaled corticosteroids; Lung neoplasms; Pneumocystis jiroveci; Pneumonia; Prophylaxis