Vascularisation of the geniculate ganglion

• Autorzy: Dozic A. , Cetkovic M. , Marinkovic S. , Mitrovic D. , Grujicic M. , Micovic M. , Milisavljevic M.
• Języki publikacji: EN

Abstrakty

EN

Background: Lack of the relevant data in the literature and possible clinical significance of the geniculate ganglion vasculature inspired us to examine the vessels of this ganglion. Materials and methods: Twelve temporal bones were taken during autopsy and microdissected. Four geniculate ganglions were taken as well, serially sectioned and used for haematoxylin-eosin and trichrome staining, and for CD34 immunostaining. Results: The geniculate ganglion was supplied by the petrosal artery, which averaged 1.1 in number, 0.44 mm in the outer diameter, 0.24 mm in the luminal diameter, and 17.1 mm in length. The artery approached the greater petrosal nerve, giving off 1–3 twigs to it with a mean diameter of 24 µm, and entered the nerve hiatus or a small bone opening close to the ganglion. Before the artery continued to the tympanic segment of the facial nerve, it gave rise to 1 (8.33%), 2 (75.00%) or 3 (16.67%) branches to the geniculate ganglion, which ranged in diameter between 18 µm and 56 µm (mean 29 µm). From the formed superficial network, several twigs penetrated the ganglion and built an intraganglionic plexus. The counting, performed in microscopic fields, each measuring 341.7 µm × 250.0 µm in size, contained between 20 and 38 (mean 28.1) ganglion cells, as well as from 87 to 143 microvessels (mean 99.8), so that the neuron/vessel ratio was 1:3.6. Conclusions: This is the first detailed examination of the geniculate ganglion vasculature. The obtained data could be of clinical importance, especially in relation to the Bell’s palsy, ganglionitis, geniculate neuralgia, petrous bone imaging, and operations in the same region. (Folia Morphol 2014; 73, 4: 414–421)

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2014
• Tom: 73
• Numer: 4
• Opis fizyczny: p.414-421,fig.,ref.

Twórcy

autor

Dozic A.

• Department of Anatomy, Institute of Anatomy, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia

autor

Cetkovic M.

• Department of Histology and Embryology, Institute of Histology and Embryology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia

autor

Marinkovic S.

• Department of Neuroanatomy and Gross Anatomy, Institute of Anatomy, Faculty of Medicine, University of Belgrade, Belgrade, Serbia

autor

Mitrovic D.

• Department of Pathology, Institute of Pathology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia

autor

Grujicic M.

• Emergency Centre, General Hospital, Smederevo, Serbia

autor

Micovic M.

• Institute for Neurosurgery, Clinical Centre of Serbia, University of Belgrade, Belgrade, Serbia

autor

Milisavljevic M.

• Department of Anatomy, Institute of Anatomy, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia

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Identyfikatory

DOI

10.5603/FM.2014.0063