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right paratracheal nodes
right hilar nodes
left hilar nodes
Involvement of right paratracheal nodes reflects the ease with which these nodes are identified on plain radiography.
Left paratracheal and aortopulmonary nodes are frequently enlarged but harder to identify 1.
History and etymology
L (Leo) Henry Garland (1903-1966) 4 was an Irish-born American radiologist who published his experience of the radiographic appearances of 36 cases of sarcoidosis in a paper published in 1947 3. The combination of bilateral hilar and right paratracheal adenopathy was found in 13 cases, 7 with lung changes and 6 without, although in early disease was present in about two-thirds of cases. Of course, like most eponyms:
he was not the first to describe it (see Stigler's law)
he did not name it after himself
and, in addition, did not use the word triad in his paper 3
- 1. Miller B, Rosado-de-Christenson M, McAdams H, Fishback N. Thoracic Sarcoidosis: Radiologic-Pathologic Correlation. Radiographics. 1995;15(2):421-37. doi:10.1148/radiographics.15.2.7761646 - Pubmed
- 2. Janette Collins, Eric J. Stern. Chest Radiology. (2014) ISBN: 9781451144482 - Google Books
- 3. Garland L. Pulmonary Sarcoidosis; the Early Roentgen Findings. Radiology. 1947;48(4):333-52; discussion 352. doi:10.1148/48.4.333 - Pubmed
- 4. Shapiro J & Linton O. Dr Henry Garland: The Man, the Myth, the Legend, and the Legacy. Garland Lecture from the 1991 California Radiological Society Meeting. Radiology. 1994;191(1):27-31. doi:10.1148/radiology.191.1.8134586 - Pubmed