Key result
AS-OCT identifies conjunctival stromal tumor as an elevated, dome-shaped hyporeflective stromal lesion.
Why the study?
Conjunctival stromal tumour (COST) is a rare conjunctival tumour with limited published cases and no prior description of anterior-segment OCT characteristics.
Case Report (n=1)
Conjunctival stromal tumour (COST) is a recently described rare conjunctival tumour of mesenchymal origin with only four publications describing a handful of cases thus far. In this report, we describe the anterior-segment optical coherence tomography (AS-OCT) characteristics in a case of COST for the first time, in addition to the clinical and histopathological characteristics. The AS-OCT showed an elevated, dome-shaped hyporeflective homogenous lesion in the conjunctival stroma lined by hyperreflective outer layer with mild posterior shadowing, consistent with histological description of a paucicellular tumour with large myxoid collagenous material inside. Immunohistochemistry showed positive CD34 and vimentin but negative S100 and smooth muscle actin, thereby differentiating it from conjunctival myxoma.
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Das et al. (2019) conducted a case report in Conjunctival stromal tumour (COST) (n=1). Anterior-segment optical coherence tomography (AS-OCT) was evaluated on AS-OCT characteristics. Anterior-segment OCT of a conjunctival stromal tumour revealed an elevated, dome-shaped hyporeflective homogenous lesion in the stroma lined by a hyperreflective outer layer with mild shadowing.
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