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  • Title: The Caudate Nucleus: Its Connections, Surgical Implications, and Related Complications.
    Author: Çırak M, Yağmurlu K, Kearns KN, Ribas EC, Urgun K, Shaffrey ME, Kalani MYS.
    Journal: World Neurosurg; 2020 Jul; 139():e428-e438. PubMed ID: 32311569.
    Abstract:
    BACKGROUND: The caudate nucleus is a C-shaped structure that is located in the center of the brain and is divided into 3 parts: the head, body, and tail. METHODS: We detail the anatomic connections, relationships with other basal ganglia structures, and clinical implications of injury to the caudate nucleus. RESULTS: Anatomically, the most inferior transcapsular gray matter is the lentiform peduncle, which is the connection between the lentiform nucleus and caudate nucleus as well as the amygdala. The border between the tail and body of the caudate nucleus is the posterior insular point. The tail of the caudate nucleus is extraependymal in some parts and intraependymal in some parts of the roof of the temporal horn of the lateral ventricle. The tail of the caudate nucleus crosses the inferior limiting sulcus (temporal stem), and section of the tail during approaches to lesions involving the temporal stem may cause motor apraxia. The mean distance from the temporal limen point, which is the junction of the limen insula and inferior limiting sulcus, to the tail of the caudate nucleus in the temporal stem is 15.87 ± 3.10 mm. CONCLUSIONS: Understanding of the functional anatomy and connections of the distinct parts of the caudate nucleus is essential for deciding the extent of resection of lesions involving the caudate nucleus and the types of deficits that may be found postoperatively.
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