Helpful mnemonics to remember the major causes of eggshell calcification of the nodes in the thorax and mediastinum are:
A Silly Cool Sergeant Likes His Tubercular Blast
Sam Smith Likes His Smart ABC Mnemonic
Mnemonics
A Silly Cool Sergeant Likes His Tubercular Blast
A: amyloidosis
S: silicosis
S: sarcoidosis
T: tuberculosis
B: blastomycosis (e.g. pulmonary blastomycosis)
Sam Smith Likes His Smart ABC Mnemonic
S: silicosis (5%)
S: sarcoidosis: (5%)
L: lymphoma (postradiation Hodgkin disease, usually 1-9 years following treatment)
H: histoplasmosis (rare)
S: scleroderma (rare)
A: amyloidosis (rare)
B: blastomycosis (rare)
C: coal workers' pneumoconiosis (1%)