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Riehani A, Soubani AO. The spectrum of pulmonary amyloidosis. Respir Med 2023; 218:107407. [PMID: 37696313 DOI: 10.1016/j.rmed.2023.107407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/21/2023] [Accepted: 09/08/2023] [Indexed: 09/13/2023]
Abstract
Amyloidosis is a disease caused by misfolded proteins that deposit in the extracellular matrix as fibrils, resulting in the dysfunction of the involved organ. The lung is a common target of Amyloidosis, but pulmonary amyloidosis is uncommonly diagnosed since it is rarely symptomatic. Diagnosis of pulmonary amyloidosis is usually made in the setting of systemic amyloidosis, however in cases of localized pulmonary disease, surgical or transbronchial tissue biopsy might be indicated. Pulmonary amyloidosis can be present in a variety of discrete entities. Diffuse Alveolar septal amyloidosis is the most common type and is usually associated with systemic AL amyloidosis. Depending on the degree of the interstitial involvement, it may affect alveolar gas exchange and cause respiratory symptoms. Localized pulmonary Amyloidosis can present as Nodular, Cystic or Tracheobronchial Amyloidosis which may cause symptoms of airway obstruction and large airway stenosis. Pleural effusions, mediastinal lymphadenopathy and pulmonary hypertension has also been reported. Treatment of all types of pulmonary amyloidosis depends on the type of precursor protein, organ involvement and distribution of the disease. Most of the cases are asymptomatic and require only close monitoring. Diffuse alveolar septal amyloidosis treatment follows the treatment of underlying systemic amyloidosis. Tracheobronchial amyloidosis is usually treated with bronchoscopic interventions including debulking and stenting or with external beam radiation. Long-term prognosis of pulmonary amyloidosis usually depends on the type of lung involvement and other organ function.
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Affiliation(s)
- Anas Riehani
- Division of Pulmonary, Critical Care and Sleep Medicine, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ayman O Soubani
- Division of Pulmonary, Critical Care and Sleep Medicine, Wayne State University School of Medicine, Detroit, MI, USA.
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Scano V, Fois AG, Manca A, Balata F, Zinellu A, Chessa C, Pirina P, Paliogiannis P. Role of EBUS-TBNA in Non-Neoplastic Mediastinal Lymphadenopathy: Review of Literature. Diagnostics (Basel) 2022; 12:diagnostics12020512. [PMID: 35204602 PMCID: PMC8871250 DOI: 10.3390/diagnostics12020512] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/13/2022] [Accepted: 02/14/2022] [Indexed: 02/01/2023] Open
Abstract
Mediastinal lymphadenopathy is a condition in which one or more mediastinal lymph nodes are enlarged for malignant or benign causes, generally more than 10 mm. For a long time, the only way to approach the mediastinum was surgery, while in last decades endoscopic techniques gained their role in neoplastic diseases. At the present time, EBUS is the technique of choice for studying the mediastinum in the suspicion of cancer, while there are not strong indications in guidelines for the study of benign mediastinal lymphadenopathy. We reviewed the literature, looking for evidence of the role of EBUS in the diagnostics of non-neoplastic mediastinal lymphadenopathy, with special regard for granulomatous disease, both infectious and non-infectious. EBUS is a reliable alternative to surgery in non-neoplastic mediastinal lymphadenopathy, even if more evidence is needed for granulomatous diseases other than tuberculosis and sarcoidosis.
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Affiliation(s)
- Valentina Scano
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.G.F.); (A.M.); (F.B.); (P.P.); (P.P.)
- Correspondence: ; Tel.: +39-340-926-5637
| | - Alessandro Giuseppe Fois
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.G.F.); (A.M.); (F.B.); (P.P.); (P.P.)
- Unit of Respiratory Diseases, University Hospital Sassari (AOU), 07100 Sassari, Italy
| | - Andrea Manca
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.G.F.); (A.M.); (F.B.); (P.P.); (P.P.)
| | - Francesca Balata
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.G.F.); (A.M.); (F.B.); (P.P.); (P.P.)
| | - Angelo Zinellu
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
| | - Carla Chessa
- Postgraduate School in Hospital Pharmacy, University of Sassari, 07100 Sassari, Italy;
| | - Pietro Pirina
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.G.F.); (A.M.); (F.B.); (P.P.); (P.P.)
- Unit of Respiratory Diseases, University Hospital Sassari (AOU), 07100 Sassari, Italy
| | - Panos Paliogiannis
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.G.F.); (A.M.); (F.B.); (P.P.); (P.P.)
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Munagala R, Mishra P, Lodh A, Shukla D, Bhatt A, Taskar V, Keshavamurthy J. Mystery in the mediastinum: Rare case of indolent primary thoracic amyloids. Lung India 2021; 38:374-376. [PMID: 34259179 PMCID: PMC8272418 DOI: 10.4103/lungindia.lungindia_916_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A 53-year-old African American male smoker presented with epigastric pain, tarry stools, and laboratory results indicative of acute pancreatitis. Chest X-ray showed a right perihilar mass with pleural effusion. Computed tomography scan showed multiple large right paratracheal and hilar nodes with internal calcification. The patient underwent a fiberoptic bronchoscopy with biopsies which were negative for malignancy. Mediastinoscopy was performed and revealed amyloidosis. Evaluation for multiple myeloma showed elevated kappa and lambda light chains and diffuse polyclonal gammopathy, but there was no monoclonal spike on serum protein electrophoresis. Bone marrow and abdominal fat pad were negative for amyloid, and the patient continues to lack chronic underlying systemic disease with no symptoms on cardiac or pulmonary examination.
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Affiliation(s)
- Rohit Munagala
- Department of Radiology, Medical College of Georgia, Augusta, Georgia, USA
| | - Pranjal Mishra
- Department of Radiology, Medical College of Georgia, Augusta, Georgia, USA
| | - Atul Lodh
- Department of Radiology, Medical College of Georgia, Augusta, Georgia, USA
| | - Dhairya Shukla
- Department of Radiology, Medical College of Georgia, Augusta, Georgia, USA
| | - Arjun Bhatt
- Department of Radiology, Medical College of Georgia, Augusta, Georgia, USA
| | - Varsha Taskar
- Department of Radiology, Medical College of Georgia, Augusta, Georgia, USA
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