Biopsy - Pterygium
is so common; why submit tissue for pathology examination? First,
the relationship between the development of pterygium and sun-exposure
raises the possibility of subclinical epithelial dysplasia or carcinoma
in situ. Second, amelanotic melanoma may mimic a pterygium clinically
(each year, this laboratory sees several cases of histologic melanoma
that appeared to be pterygium clinically).
of pterygium. Note the severe solar elastosis beneath the epithelium
on the right-half of this photomicrograph. The dilated vessels beneath
the epithelium to the left correspond to the "injection"
seen clinically. There was no evidence of malignancy in this sample.
remember to handle the tissue gently and prepare
the specimen properly for submission to the laboratory.
you have more questions about pterygium specimens, please contact one
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