The authors have conducted a corrosion cast study of the human spleen to systematize the branches of the splenic artery and the vascular territories irrigated by them. The existence of two primary divisional or lobar branches of the splenic artery and their respective territories or lobes is confirmed. The secondary or segmental branches and their vascular territories were studied; an average of 6 segmental territories was found. These findings are compared with those reported in the literature.

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We present a rare case of a peripheral orbital nerve schwannoma. This patient was a 37-year-old man with a lesion that appeared 10 years ago and has gradually enlarged. Examination showed a space-occupying lesion in the right orbit that was firm to palpation, adherent to deep planes, painless and displaced the right eye inferiorly. Computed tomography showed a homogeneous orbital mass that was isodense to the brain parenchyma, encapsulated and did not invade adjacent structures. Complete tumour resection is performed, and pathologic examination showed a schwannoma. Overall orbital Schwannomas are infrequent tumours arising from the orbit coming behind Inflammatory, vascular and lymphoproliferative diseases, treatment is complete resection of the lesion with subsequent monitoring to prevent recurrence.Orbital Schwannoma arising from the trochlear nerve in the anterior orbit with ocular movement recovery after surgery.