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Complete cohort - Case 23 of 83

Case 27

Top-1 matches at least one expert referenceHigh model uncertainty (margin < 0.10)Unanimous expert reference (4/4)

Assigned out-of-fold recommendation

Flow diversion with coil embolization

Alternative: Flow diversion alone

Top-1 class score28.1%
Top-2 class score24.8%
Scores rank model classes; they are not calibrated probabilities of clinical correctness.
View A - APOpen full size
De-identified DSA image, case 27, AP view
View B - LateralOpen full size
De-identified DSA image, case 27, lateral view

View A is AP; View B is lateral, as confirmed by the data provider.

Case summary

A 41-year-old male presents with a 6 mm x 5 mm x 12 mm partially thrombosed, windsock-shaped unruptured right ophthalmic aneurysm with a 1.2 mm neck.

Image observation

On the supplied views, a large fusiform dilation appears to involve the ophthalmic segment of the internal carotid artery, with the vessel lumen appearing patent.

Model-generated clinical rationale

The assigned recommendation of flow diversion with coil embolization addresses the wide-necked, windsock morphology and partial thrombosis described in the narrative. However, the documented 1.2 mm neck is relatively narrow, which typically favors flow diversion alone; the addition of coils may be intended to manage the thrombus burden or specific geometry, though this is not explicitly confirmed by the images.

Model uncertainty

The OOF classifier scores for Flow diversion with coil embolization and Flow diversion alone were close, so the assigned recommendation should be treated as uncertain.

Clinical uncertainty / missing factor

The decision to combine coils with flow diversion is uncertain given the narrow neck width, and the specific impact of the partial thrombosis on device selection is not fully defined.

Explicit evidence used

6 mm x 5 mm x 12 mm windsock shaped aneurysm | 1.2 mm neck | partially thrombosed