PMC:7088323 / 10682-11960 JSONTXT

{"project":"LitCovid-PD-FMA-UBERON","denotations":[{"id":"T26","span":{"begin":150,"end":154},"obj":"Body_part"},{"id":"T27","span":{"begin":339,"end":344},"obj":"Body_part"},{"id":"T28","span":{"begin":375,"end":379},"obj":"Body_part"},{"id":"T29","span":{"begin":380,"end":388},"obj":"Body_part"},{"id":"T30","span":{"begin":482,"end":487},"obj":"Body_part"},{"id":"T31","span":{"begin":758,"end":763},"obj":"Body_part"},{"id":"T32","span":{"begin":790,"end":801},"obj":"Body_part"},{"id":"T33","span":{"begin":829,"end":835},"obj":"Body_part"},{"id":"T34","span":{"begin":1214,"end":1228},"obj":"Body_part"},{"id":"T36","span":{"begin":1261,"end":1278},"obj":"Body_part"}],"attributes":[{"id":"A26","pred":"fma_id","subj":"T26","obj":"http://purl.org/sig/ont/fma/fma7195"},{"id":"A27","pred":"fma_id","subj":"T27","obj":"http://purl.org/sig/ont/fma/fma66938"},{"id":"A28","pred":"fma_id","subj":"T28","obj":"http://purl.org/sig/ont/fma/fma7195"},{"id":"A29","pred":"fma_id","subj":"T29","obj":"http://purl.org/sig/ont/fma/fma7409"},{"id":"A30","pred":"fma_id","subj":"T30","obj":"http://purl.org/sig/ont/fma/fma66938"},{"id":"A31","pred":"fma_id","subj":"T31","obj":"http://purl.org/sig/ont/fma/fma66938"},{"id":"A32","pred":"fma_id","subj":"T32","obj":"http://purl.org/sig/ont/fma/fma76497"},{"id":"A33","pred":"fma_id","subj":"T33","obj":"http://purl.org/sig/ont/fma/fma312401"},{"id":"A34","pred":"fma_id","subj":"T34","obj":"http://purl.org/sig/ont/fma/fma13121"},{"id":"A35","pred":"fma_id","subj":"T34","obj":"http://purl.org/sig/ont/fma/fma67480"},{"id":"A36","pred":"fma_id","subj":"T36","obj":"http://purl.org/sig/ont/fma/fma7383"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"LitCovid-PD-UBERON","denotations":[{"id":"T17","span":{"begin":89,"end":96},"obj":"Body_part"},{"id":"T18","span":{"begin":150,"end":154},"obj":"Body_part"},{"id":"T19","span":{"begin":339,"end":344},"obj":"Body_part"},{"id":"T20","span":{"begin":375,"end":379},"obj":"Body_part"},{"id":"T21","span":{"begin":380,"end":388},"obj":"Body_part"},{"id":"T22","span":{"begin":430,"end":437},"obj":"Body_part"},{"id":"T23","span":{"begin":482,"end":487},"obj":"Body_part"},{"id":"T24","span":{"begin":758,"end":763},"obj":"Body_part"},{"id":"T25","span":{"begin":790,"end":801},"obj":"Body_part"},{"id":"T26","span":{"begin":829,"end":835},"obj":"Body_part"},{"id":"T27","span":{"begin":961,"end":965},"obj":"Body_part"},{"id":"T28","span":{"begin":1199,"end":1203},"obj":"Body_part"},{"id":"T29","span":{"begin":1274,"end":1278},"obj":"Body_part"}],"attributes":[{"id":"A17","pred":"uberon_id","subj":"T17","obj":"http://purl.obolibrary.org/obo/UBERON_0002185"},{"id":"A18","pred":"uberon_id","subj":"T18","obj":"http://purl.obolibrary.org/obo/UBERON_0002048"},{"id":"A19","pred":"uberon_id","subj":"T19","obj":"http://purl.obolibrary.org/obo/UBERON_0000912"},{"id":"A20","pred":"uberon_id","subj":"T20","obj":"http://purl.obolibrary.org/obo/UBERON_0002048"},{"id":"A21","pred":"uberon_id","subj":"T21","obj":"http://purl.obolibrary.org/obo/UBERON_0002185"},{"id":"A22","pred":"uberon_id","subj":"T22","obj":"http://purl.obolibrary.org/obo/UBERON_0002185"},{"id":"A23","pred":"uberon_id","subj":"T23","obj":"http://purl.obolibrary.org/obo/UBERON_0000912"},{"id":"A24","pred":"uberon_id","subj":"T24","obj":"http://purl.obolibrary.org/obo/UBERON_0000912"},{"id":"A25","pred":"uberon_id","subj":"T25","obj":"http://purl.obolibrary.org/obo/UBERON_0002186"},{"id":"A26","pred":"uberon_id","subj":"T26","obj":"http://purl.obolibrary.org/obo/UBERON_0007311"},{"id":"A27","pred":"uberon_id","subj":"T27","obj":"http://purl.obolibrary.org/obo/UBERON_3010752"},{"id":"A28","pred":"uberon_id","subj":"T28","obj":"http://purl.obolibrary.org/obo/UBERON_3010752"},{"id":"A29","pred":"uberon_id","subj":"T29","obj":"http://purl.obolibrary.org/obo/UBERON_3010752"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"LitCovid-PD-MONDO","denotations":[{"id":"T59","span":{"begin":211,"end":219},"obj":"Disease"},{"id":"T60","span":{"begin":305,"end":313},"obj":"Disease"},{"id":"T61","span":{"begin":683,"end":691},"obj":"Disease"},{"id":"T62","span":{"begin":874,"end":882},"obj":"Disease"},{"id":"T63","span":{"begin":1063,"end":1071},"obj":"Disease"}],"attributes":[{"id":"A59","pred":"mondo_id","subj":"T59","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"},{"id":"A60","pred":"mondo_id","subj":"T60","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"},{"id":"A61","pred":"mondo_id","subj":"T61","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"},{"id":"A62","pred":"mondo_id","subj":"T62","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"},{"id":"A63","pred":"mondo_id","subj":"T63","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T118","span":{"begin":47,"end":48},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T119","span":{"begin":100,"end":101},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T120","span":{"begin":150,"end":154},"obj":"http://purl.obolibrary.org/obo/UBERON_0002048"},{"id":"T121","span":{"begin":150,"end":154},"obj":"http://www.ebi.ac.uk/efo/EFO_0000934"},{"id":"T122","span":{"begin":262,"end":263},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T123","span":{"begin":375,"end":379},"obj":"http://purl.obolibrary.org/obo/UBERON_0002048"},{"id":"T124","span":{"begin":375,"end":379},"obj":"http://www.ebi.ac.uk/efo/EFO_0000934"},{"id":"T125","span":{"begin":380,"end":388},"obj":"http://purl.obolibrary.org/obo/UBERON_0002185"},{"id":"T126","span":{"begin":790,"end":801},"obj":"http://purl.obolibrary.org/obo/UBERON_0002186"},{"id":"T127","span":{"begin":853,"end":856},"obj":"http://purl.obolibrary.org/obo/CLO_0001627"},{"id":"T128","span":{"begin":857,"end":859},"obj":"http://purl.obolibrary.org/obo/CLO_0001382"},{"id":"T129","span":{"begin":869,"end":873},"obj":"http://purl.obolibrary.org/obo/UBERON_0003101"},{"id":"T130","span":{"begin":869,"end":873},"obj":"http://www.ebi.ac.uk/efo/EFO_0000970"},{"id":"T131","span":{"begin":1042,"end":1043},"obj":"http://purl.obolibrary.org/obo/CLO_0001021"},{"id":"T132","span":{"begin":1044,"end":1045},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T133","span":{"begin":1058,"end":1062},"obj":"http://purl.obolibrary.org/obo/UBERON_0003101"},{"id":"T134","span":{"begin":1058,"end":1062},"obj":"http://www.ebi.ac.uk/efo/EFO_0000970"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T9","span":{"begin":869,"end":873},"obj":"Chemical"},{"id":"T10","span":{"begin":1058,"end":1062},"obj":"Chemical"}],"attributes":[{"id":"A9","pred":"chebi_id","subj":"T9","obj":"http://purl.obolibrary.org/obo/CHEBI_30780"},{"id":"A10","pred":"chebi_id","subj":"T10","obj":"http://purl.obolibrary.org/obo/CHEBI_30780"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"LitCovid-PD-HP","denotations":[{"id":"T20","span":{"begin":641,"end":657},"obj":"Phenotype"},{"id":"T21","span":{"begin":670,"end":679},"obj":"Phenotype"},{"id":"T22","span":{"begin":902,"end":907},"obj":"Phenotype"},{"id":"T23","span":{"begin":1091,"end":1096},"obj":"Phenotype"},{"id":"T24","span":{"begin":1102,"end":1107},"obj":"Phenotype"}],"attributes":[{"id":"A20","pred":"hp_id","subj":"T20","obj":"http://purl.obolibrary.org/obo/HP_0410397"},{"id":"A21","pred":"hp_id","subj":"T21","obj":"http://purl.obolibrary.org/obo/HP_0031246"},{"id":"A22","pred":"hp_id","subj":"T22","obj":"http://purl.obolibrary.org/obo/HP_0001945"},{"id":"A23","pred":"hp_id","subj":"T23","obj":"http://purl.obolibrary.org/obo/HP_0001945"},{"id":"A24","pred":"hp_id","subj":"T24","obj":"http://purl.obolibrary.org/obo/HP_0012735"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"LitCovid-sentences","denotations":[{"id":"T74","span":{"begin":0,"end":15},"obj":"Sentence"},{"id":"T75","span":{"begin":16,"end":239},"obj":"Sentence"},{"id":"T76","span":{"begin":240,"end":503},"obj":"Sentence"},{"id":"T77","span":{"begin":504,"end":658},"obj":"Sentence"},{"id":"T78","span":{"begin":659,"end":845},"obj":"Sentence"},{"id":"T79","span":{"begin":846,"end":919},"obj":"Sentence"},{"id":"T80","span":{"begin":920,"end":1119},"obj":"Sentence"},{"id":"T81","span":{"begin":1120,"end":1278},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"0_colil","denotations":[{"id":"32193638-18195376-54930","span":{"begin":156,"end":158},"obj":"18195376"},{"id":"32193638-32027573-54931","span":{"begin":225,"end":227},"obj":"32027573"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"TEST0","denotations":[{"id":"32193638-140-146-54930","span":{"begin":156,"end":158},"obj":"[\"18195376\"]"},{"id":"32193638-209-215-54931","span":{"begin":225,"end":227},"obj":"[\"32027573\"]"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"MyTest","denotations":[{"id":"32193638-18195376-29362783","span":{"begin":156,"end":158},"obj":"18195376"},{"id":"32193638-32027573-29362784","span":{"begin":225,"end":227},"obj":"32027573"}],"namespaces":[{"prefix":"_base","uri":"https://www.uniprot.org/uniprot/testbase"},{"prefix":"UniProtKB","uri":"https://www.uniprot.org/uniprot/"},{"prefix":"uniprot","uri":"https://www.uniprot.org/uniprotkb/"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"2_test","denotations":[{"id":"32193638-18195376-29362783","span":{"begin":156,"end":158},"obj":"18195376"},{"id":"32193638-32027573-29362784","span":{"begin":225,"end":227},"obj":"32027573"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}

{"project":"LitCovid-PubTator","denotations":[{"id":"179","span":{"begin":883,"end":890},"obj":"Species"},{"id":"180","span":{"begin":1072,"end":1079},"obj":"Species"},{"id":"181","span":{"begin":874,"end":882},"obj":"Disease"},{"id":"182","span":{"begin":902,"end":907},"obj":"Disease"},{"id":"183","span":{"begin":1063,"end":1071},"obj":"Disease"},{"id":"184","span":{"begin":1091,"end":1096},"obj":"Disease"},{"id":"185","span":{"begin":1102,"end":1107},"obj":"Disease"},{"id":"191","span":{"begin":692,"end":700},"obj":"Species"},{"id":"192","span":{"begin":211,"end":219},"obj":"Disease"},{"id":"193","span":{"begin":305,"end":313},"obj":"Disease"},{"id":"194","span":{"begin":670,"end":679},"obj":"Disease"},{"id":"195","span":{"begin":683,"end":691},"obj":"Disease"}],"attributes":[{"id":"A179","pred":"tao:has_database_id","subj":"179","obj":"Tax:9606"},{"id":"A180","pred":"tao:has_database_id","subj":"180","obj":"Tax:9606"},{"id":"A181","pred":"tao:has_database_id","subj":"181","obj":"MESH:C000657245"},{"id":"A182","pred":"tao:has_database_id","subj":"182","obj":"MESH:D005334"},{"id":"A183","pred":"tao:has_database_id","subj":"183","obj":"MESH:C000657245"},{"id":"A184","pred":"tao:has_database_id","subj":"184","obj":"MESH:D005334"},{"id":"A185","pred":"tao:has_database_id","subj":"185","obj":"MESH:D003371"},{"id":"A191","pred":"tao:has_database_id","subj":"191","obj":"Tax:9606"},{"id":"A192","pred":"tao:has_database_id","subj":"192","obj":"MESH:C000657245"},{"id":"A193","pred":"tao:has_database_id","subj":"193","obj":"MESH:C000657245"},{"id":"A194","pred":"tao:has_database_id","subj":"194","obj":"MESH:D003371"},{"id":"A195","pred":"tao:has_database_id","subj":"195","obj":"MESH:C000657245"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"Air bronchogram\nAir bronchogram was defined as a pattern of air-filled (low-attenuation) bronchi on a background of opaque (high-attenuation) airless lung [26] and was reported to be another CT manifestation of COVID-19 [17, 19] (Fig. 3a). However, according to a recent general observation report of the COVID-19 autopsy [31], gelatinous mucus attachment was present in the lung bronchus; therefore, we infer the low-attenuation bronchi in CT imaging may be filled with gelatinous mucus instead of air. Moreover, this sign was often accompanied by slightly bronchiolar dilatation, and thus we think it may be more appropriate to term it as bronchiolectasis. As for the dry cough in COVID-19 patients, we surmise it may be explained by the high viscosity of mucus and the damage of dilated bronchioles, resulting in insufficient sputum motility.\nFig. 3 a A 48-year-old male COVID-19 patient presenting fever for 5 days. CT scan shows bilateral GGO in the lower lobe (red frames) and air bronchogram (white arrow) in the left subpleural area. b A 66-year-old male COVID-19 patient presenting fever with cough for 7 days. CT scan shows reticular pattern in the subpleural areas of the bilateral lower lobe, GGO, and bronchial wall thickening (white arrow) in the right middle lobe"}