Ultrasonographic evidence of a mushroom-shaped choroidal metastasis.
OBJECTIVE
To describe the evolution of a "collar-button" or mushroom-shaped choroidal metastasis.


METHODS
Case report.


RESULTS
A 52-year-old woman with known primary colon cancer and widespread extraocular metastases developed bilateral choroidal masses with neurosensory retinal detachments. Clinical and ultrasound evaluation demonstrated evolution of a choroidal metastasis with a "collar-button" configuration in the right eye.


CONCLUSIONS
A choroidal metastasis may develop a mushroom-shaped configuration. This "collar-button" configuration is not pathognomonic for choroidal melanoma.
Ward
S D
SD
Department of Ophthalmology, Saint Louis University Health Sciences Center, St. Louis, Missouri, USA.
Byrne
B J
BJ
Kincaid
M C
MC
Mann
E S
ES
D002830:Choroid Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D003110:Colonic Neoplasms / Q000473:pathology*; D005260:Female; D005654:Fundus Oculi; D006801:Humans; D008545:Melanoma / Q000000981:diagnostic imaging* / Q000556:secondary*; D008875:Middle Aged; D012163:Retinal Detachment / Q000000981:diagnostic imaging; D014463:Ultrasonography