2017年11月25日 星期六

Pulmonary Mucormycosis in a Kidney Transplant Recipient

(2017.11.25刊登於 2017 30th ICC國際化療及感染會議) 

Yu-An Chen, Chia-Hui Chou, Mao-Wang Ho

Background
Fungi of the order Mucorales are ubiquitous in nature but rarely cause human infection. However, because of the rising amount of immunocompromised patients, the incidence of invasive fungal infection also increased. There was only one case report of pleural empyema related to mucormycosis to date. Here we report the first case in Taiwan and review the literature of the previous reports.

Methods
A 54-year-old man with a history of end stage diabetic nephropathy presented to our hospital 35 days after receiving kidney transplantation, complaining progressive dyspnea and pleuritic right chest pain for 5 days. The initial laboratory data showed leukocytosis (WBC 16,200 cells/ micro liter) and chest plain film showed right side ill-defined opacity with pleural effusion. Broad-spectrum antibiotic was initiated but the clinical improvement was limited. The pleural effusion Gram’s stain and further analysis yielded mold of Rhizopus species.

Results
Pig-tail was inserted for pleural effusion drainage, and we started Liposomal Amphotericin B for mold of Rhizopus species. Fever subsided and the respiratory condition also improved. The pig-tail was removed 40 days later when the drainage amount decreased to 30 ml. Liposomal Amphotericin B was discontinued after 25 days of therapy, and was shifted to oral Posaconazole for maintenance. Currently the patient is doing well and received regular follow-up in our outpatient clinic.

Conclusions
The advance of solid organ or hematologic stem cell transplantation, improvement of survival in patients with hematologic malignancy, and the increasing number of HIV-infected patients all contributed the enlarged number of immunocompromised patient. And the number of previously rarely, opportunistic infection will rise with time. Obtain the adequate sample and make the right diagnosis will reverse the potentially life-threatening infection of the patients and is of paramount importance to achieve long-term survival in these patients.