A combined fuzzy backtracking search optimization algorithm to localize retinal blood vessels for diabetic retinopathy.

For diabetic retinopathy (DR) surgery, localization of retinal blood vessels is of paramount importance. Fundus images which are often used for DR diagnosis suffer from poor contrast (between the retinal background and the blood vessels, due to its size) limits the diagnosis. In addition to this, various pathological changes in retinal blood vessels may also be observed for different diseases such as glaucoma and diabetes.

A rare presentation of solitary pineal region metastasis in a case of lung cancer.

Pineal gland metastasis accounts for approximately 0.4% of all intracranial metastases from lung primary. Our patient was a 60-year-old female presenting with intermittent headache and altered sensorium.