{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,25]],"date-time":"2025-09-25T16:43:53Z","timestamp":1758818633202,"version":"3.40.4"},"reference-count":11,"publisher":"BMJ","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ Case Reports"],"published-print":{"date-parts":[[2009]]},"abstract":"<jats:p>A 40-year-old male paddy field worker was referred for exertional shortness of breath and non-productive cough for 4 years. He had been treated for pulmonary tuberculosis twice. Chest radiograph showed extensive bilateral nodular opacities (\u201csandstorm-like\u201d) in the middle and lower lobe. Pulmonary function tests revealed a restrictive ventilatory defect. High resolution CT showed widespread nodular infiltration with \u201ccrazy paving\u201d appearance and interrupted black pleura sign. This was confirmed as pulmonary alveolar microlithiasis (PAM) by trans-bronchial lung biopsy, which showed normal respiratory lining epithelium with dilated alveolar spaces containing many calcific bodies, some of which showed concentric calcification. The possibilities of silicosis (due to exposure to husk) and tuberculosis, both of which can mimic PAM clinically and radiologically, made this case a diagnostic challenge.<\/jats:p>","DOI":"10.1136\/bcr.09.2008.1012","type":"journal-article","created":{"date-parts":[[2009,5,8]],"date-time":"2009-05-08T09:07:41Z","timestamp":1241773661000},"page":"bcr0920081012","source":"Crossref","is-referenced-by-count":6,"title":["Bilateral stony lung: pulmonary alveolar microlithiasis"],"prefix":"10.1136","volume":"2009","author":[{"given":"Subhash","family":"Chandra","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anant","family":"Mohan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Randeep","family":"Guleria","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Prasenjit","family":"Das","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chitra","family":"Sarkar","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2009,5,8]]},"reference":[{"key":"2025042507511684000_2009.may08_1.bcr0920081012.1","first-page":"173","article-title":"Pulmonary alveolar microlithiasis: report on 576 cases published in the literature","volume":"21","author":"Mariotta","year":"2004","journal-title":"Sarcoidosis Vasc Diffuse Lung Dis"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.2","doi-asserted-by":"publisher","DOI":"10.1080\/14767050600590219"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.3","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.200609-1274OC"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.4","doi-asserted-by":"publisher","DOI":"10.1136\/thx.48.2.171"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.5","doi-asserted-by":"crossref","first-page":"552","DOI":"10.1590\/S1806-37132007000500010","article-title":"Pulmonary alveolar microlithiasis: high-resolution computed tomography findings in 10 patients","volume":"33","author":"Marchiori","year":"2007","journal-title":"J Bras Pneumol"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.6","doi-asserted-by":"publisher","DOI":"10.1259\/bjr\/96331922"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.7","doi-asserted-by":"publisher","DOI":"10.1159\/000074218"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.8","doi-asserted-by":"publisher","DOI":"10.1136\/thx.24.1.84"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.9","doi-asserted-by":"publisher","DOI":"10.1002\/ppul.10183"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.10","doi-asserted-by":"crossref","first-page":"250","DOI":"10.1159\/000196068","article-title":"Treatment of pulmonary alveolar microlithiasis with a diphosphonate--preliminary results of a case","volume":"5","author":"G\u00f6cmen","year":"1992","journal-title":"Respiration"},{"key":"2025042507511684000_2009.may08_1.bcr0920081012.11","doi-asserted-by":"publisher","DOI":"10.1378\/chest.80.2.242"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr.09.2008.1012","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,25]],"date-time":"2025-04-25T14:51:24Z","timestamp":1745592684000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr.09.2008.1012"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009]]},"references-count":11,"alternative-id":["10.1136\/bcr.09.2008.1012"],"URL":"https:\/\/doi.org\/10.1136\/bcr.09.2008.1012","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2009]]}}}