Lipoid pneumonia classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ramyar Ghandriz MD [2]

Overview

Lipoid pneumonia may be classified according to source of the lipid exposure into 2 subtypes: Exogenous, more common type reported, due to aspiration or inhalation of fatty substance, and endogenous, due to obstructive pneumonia.

Lipoid pneumonia may be classified according to source of the lipid exposure into 2 subtypes^[1]^[2]:

Lipoid pneumonia classification

Exogenus: More common type reported, due to aspiration or inhalation of fatty substance.

Endogenus: Due to obstructive pneumonia.

Type I

Type II

Type III

Endogenous pneumonia further divide into 3 subgroups:^[3]
1. Type I: Localized to the lung parenchyma distal to an airway obstructed by a tumor
2. Type II: Features of type I lipoid pneumonia +consecutively spreading to the adjacent segment whose airway is not affected
3. type III: Features of type II lipoid pneumonia +spreading to isolated segments

↑ BARON E (1950). "Lipoid pneumonia due to the use of mineral oil as a laxative". Va Med Mon (1918). 77 (9): 448–50. PMID 15443468.
↑ Gondouin, A.; Manzoni, Ph.; Ranfaing, E.; Brun, J.; Cadranel, J.; Sadoun, D.; Cordier, J.F.; Depierre, A.; Dalphin, J.C. (1996). "Exogenous lipid pneumonia: a retrospective multicentre study of 44 cases in France". European Respiratory Journal. 9 (7): 1463–1469. doi:10.1183/09031936.96.09071463. ISSN 0000-0000.
↑ Tamura, A.; Hebisawa, A.; Fukushima, K.; Yotsumoto, H.; Mori, M. (1998). "Lipoid Pneumonia in Lung Cancer: Radiographic and Pathological Features". Japanese Journal of Clinical Oncology. 28 (8): 492–496. doi:10.1093/jjco/28.8.492. ISSN 0368-2811.