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Chest X-ray Dance
Ashley Davidoff
The Scream and Cry of Cavitating Metastasis
Metastatic urothelial carcinoma to the lungs
Ashley Davidoff MD
TheCommonVein.net
CT Scan
Art of Radiology
Derivation of the
The Scream and Cry of Cavitating Metastasis
Metastatitic urothelial carcinoma
Ashley Davidoff MD
TheCommonVein.net
CT Scan
Art of Radiology

Gingko Lung
Airways turned upside down and created a tree of Gingko shaped leaves
Ashley Davidoff MD
TheCommonVein.net
CT scan
21 x 21
Derivation of the Gingko Lung
Airways turned upside down and created a tree of Gingko shaped leaves
Ashley Davidoff MD
TheCommonVein.net CT scan

Smoking
Kick the Habit in the Butt
Ashley Davidoff MD
All Needed For the Dance
Ashley Davidoff
Fourth Position
Ashley Davidoff
ASYMMETRIC BRANCHING PATTERN – RIGHT SHORT AND STOUT AND THE LEFT LONG AND THIN
The classical branching pattern of many trees
Ashley Davidoff MD
TheCommonVein.net

Chest of Fruit
Ashley Davidoff MD
TheCommonVein.net

Filled and Half-Filled Alveoli – Differences in Appearance on CT
When the alveoli are fully filled with fluid, tumor, or pus for example, the overall net density will be white, and when adjacent to air filled airways, air bronchograms are visible (left side of image)
When the alveoli are only partially filled, the density of the fluid added to the density of the air results in an overall gray density, and when positioned next to air filled bronchi, there is insufficient contrast to create an air bronchogram and sufficient to enable visualization of the blood vessels. This is called ground glass opacification
Ashley Davidoff
TheCommonVein.net
Ground Glass as a result of Cellular Accumulations in the Alveoli
When there are extensive ceelular accumulations in the alveoli, such as adenocarcinoma with lepidic growth, Langerhans cells or other macrophages, the overall net density of the region of involvement will be gray, and when adjacent to the black air filled airways, a ground glass appearance will be apparent
Ashley Davidoff
TheCommonVein.net
ssb = subsegmental bronchiole
tb = terminal bronchiole
rb = respiratory bronchiole
as = alveolar duct
as = alvelar sac
is = anteralveolar septum
lungs-00682-lo res
Langerhans Cell Histiocytosis
Langerhans Cell is a dendritic white cell with a wavy nucleus that creates granulomas and infiltrates the interstitium. It thus causes spiculated nodules that appear as spiculated nodules on CT
Ashley Davidoff
TheCommon Vein.net
Langerhans Cell Histiocytosis
Langerhans Cell is a dendritic white cell with a wavy nucleus that creates granulomas and infiltrates the interstitium. It thus causes spiculated nodules that appear as spiculated nodules on CT
Ashley Davidoff
TheCommon Vein.net
PROGRESSION AS THE DISEASE SPREADS IN THE LUNGS
The infection starts in small basal segments
Ashley Davidoff
TheCommonVein.net
INFLAMMATION
The virus replicates and invades more cells of the alveoli
As COVID-19 causes inflammation of the the lungs, infected fluid fills the lungs thus disrupting gas exchange.
Ashley Davidoff
TheCommonVein.net
THE ACINUS
3000-4,000 acini unite to form the acinus. The acini are formed by the respiratory bronchioles and the alveolar ducts, and the alveoli
Ashley Davidoff MD
TheCommonVein.net
COVID 19
Ashley Davidoff MD
TheCommonVein.net
There is a Devil in Our Midst and He and His Progeny are after Our Alveoli
Ashley Davidoff
TheCommonVein.net