A CASE OF CHRONIC PULMONARY ASPERGILLOSIS AS THE INITIAL PRESENTATION FOR SARCOIDOSIS

Abstract

TOPIC: Chest Infections TYPE: Medical Student/Resident Case Reports INTRODUCTION: Subacute invasive pulmonary aspergillosis is a locally invasive subacute form of chronic pulmonary aspergillosis (CPA) which typically involves the upper lobes of individuals with pre-existing lung disease or immunodeficiency. Patients with chronic fibrocystic sarcoidosis are prone to CPA. We described a case of sarcoidosis complicated with CPA which was diagnosed concomitantly. CASE PRESENTATION: A 34 year old male with no past medical history presented with hemoptysis for 3 days, associated with chronic productive cough, exertional dyspnea and skin rashes over his arms and face for the past year. Physical examination revealed multiple violaceous plaque over bilateral upper arms and face; reduced breath sounds over bilateral upper zones. CT Chest revealed bilateral upper lobes cavitations, left upper lobe mass-like consolidation, approximately 2.9 cm with air crescent sign. Laboratory tests were notable for lymphopenia, ESR 43 mm/h, CD4+ count 244, Aspergillus Ag 0.6, Aspergillus IgG positive, serum ACE 178 U/L, fungal culture from bronchial alveolar lavage (BAL) isolated Aspergillus species. ANCA, Histoplasma Ag, Cryptococcal Ag, HIV Ag-Ab, Quantiferon TB, Sputum acid fast smear were negative. Endobronchial ultrasound with fine needle aspiration (FNA) of subcarinal lymph nodes showed non-caseating granuloma. Skin biopsies of upper extremities skin lesions showed non-caseating granulomas without microorganisms seen. The patient was started on Voriconazole for 3 months duration and scheduled for outpatient follow up. DISCUSSION: Patients with sarcoidosis are predisposed to CPA due to underlying pulmonary involvement especially with fibrocystic sarcoidosis in addition to the mildly immunocompromised state, as evidenced by low CD4 count. The diagnosis of CPA was made based on symptomatology (chronic productive cough, dyspnea and hemoptysis), bilateral upper lobe cavitations on CT Chest, positive Aspergillus IgG and positive BAL culture for Aspergillus species. It was a challenge in making concomitant diagnosis of Sarcoidosis as it is a diagnosis of exclusion. Diagnosis of sarcoidosis cannot be made based on the non-caseating granulomas resulted from the FNA of the lymph nodes as aspergillosis can present with similar picture. The skin rash which appeared to be plaque sarcoidosis ultimately leads us to the diagnosis of sarcoidosis after confirmation of non-caseating granuloma on skin biopsy. CONCLUSIONS: Patients with CPA typically present with background risk factors of underlying lung disease. It is essential to have a high clinical suspicion for underlying undiagnosed disease processes especially when individuals presented with CPA without any obvious risk factors. CPA is a serious complication of sarcoidosis and is associated with high mortality and morbidity. Unfortunately, there is no consensus currently on how to best treat patients diagnosed with sarcoidosis and CPA. REFERENCE #1: Denning DW, Cadranel J, Beigelman-Aubry C, et al. Chronic pulmonary aspergillosis: rationale and clinical guidelines for diagnosis and management. Eur Respir J. 2016;47(1):45-68. doi:10.1183/13993003.00583-2015 REFERENCE #2: Alastruey-Izquierdo A, Cadranel J, Flick H, et al. Treatment of Chronic Pulmonary Aspergillosis: Current Standards and Future Perspectives. Respiration. 2018;96(2):159-170. doi:10.1159/000489474 REFERENCE #3: Denning DW, Pleuvry A, Cole DC. Global burden of chronic pulmonary aspergillosis complicating sarcoidosis. Eur Respir J. 2013;41(3):621-626. doi:10.1183/09031936.00226911 DISCLOSURES: No relevant relationships by Farahnaz Anwar, source=Web Response No relevant relationships by James Choi, source=Web Response No relevant relationships by Si Yuan Khor, source=Web Response No relevant relationships by Jason Liu Liu, source=Web Response No relevant relationships by Akhil Sharma, source=Web Response No relevant relationships by Enhua Wang, source=Web Response