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J Rude

Publications and source records attributed to J Rude.

7 recordsLinked to original sources
PubMed2000

On a complex anastomosis of the glossopharyngeal nerve in humans.

The glossopharyngeal nerve shows anastomoses with the facial nerve and the sympathetic nervous system. One anastomosis extends from the interconnected stylopharyngeal branches, immediately after having perforated the muscle towards the base of skull. Cranially, varying targets of the ascending nerve can be discriminated: 1) The temporal bone. 2) The facial nerve. 3) The sympathetic nerve plexus of the internal carotid nerve. This complex anastomosis was now studied under the dissecting microscope in more detail. The investigation revealed a more complicated distribution pattern of the anastomotic nerve than previously assumed, i.e. the existence of a solitary ascending branch could only be proved in a minority of cases (seven of twenty individuals). In the majority, a delicate nerve plexus could be visualized (thirteen of twenty individuals). In the cases of an anastomosis with the facial nerve, the stylohyoid branch was observed to be the main target of the ascending nerve. Also, connections with the internal carotid nerve were seen. In addition, delicate endings of the branches were demonstrated ramifying in the styloid process or penetrating the temporal bone at other sites. The histological demonstration of ganglion cells within the ascending nerve or nerve plexus suggests parasympathetic and sensoric functions for this anastomosis.

Facial Nerve↗
PubMed1998

Superior labrum and labral-bicipital complex: MR imaging with pathologic-anatomic and histologic correlation.

OBJECTIVE: The purpose of this study was to analyze the anatomic relationship between the superior labrum, the superior glenoid rim, the superior glenohumeral ligament, and the long head of the biceps tendon. MATERIALS AND METHODS: Seventeen cadaveric shoulder specimens underwent axial, oblique coronal, and oblique sagittal MR imaging on a 1.5-T imager. Unenhanced proton density- and T2-weighted spin-echo images with and without fat suppression, and T1-weighted fat-suppressed spin-echo images after intraarticular injection of gadolinium, were obtained of each specimen. The shoulders were then frozen and sectioned into 4-mm-thick slices, either transversely or oblique coronally. After gross anatomic correlation, histologic analysis was performed on 32 sections. RESULTS: A sublabral recess was present in 12 (71%) of 17 shoulders. MR arthrography was significantly better at showing the sublabral recess than was unenhanced MR imaging. Histologically, the synovial recess in all cases was covered by synovial lining cells. Intralabral altered histologic patterns were found in 20 (63%) of 32 labral sections. In addition to signs of degeneration, five sections of two specimens showed proliferating fibroblasts and vessels, as well as fibrosis, suggesting trauma. The presence or absence of altered intralabral histologic patterns was better assessed with T1-weighted fat-suppressed arthrograms than with unenhanced MR images. We found a close association grossly and histologically between the superior labrum and the biceps tendon. CONCLUSION: The attachment of the superior glenoid labrum to the glenoid rim shows great variability. In MR imaging, an overlap appears to exist between physiologic recesses of the superior labrum and a type 2 superior labrum anterior-posterior lesion. T1-weighted fat-suppressed MR arthrograms provided the best view of the superior labrum and the labral-bicipital complex.

Aged↗
PubMed1987

Correlation coefficients in human skulls: significant sexual differences.

This study of 500 male and female skulls proves: significant differences of correlation coefficients (p less than or equal to 0.01) occur between the two sexes. The combined variables are: 1. bizygomatic breadth (45)/skull base length (5) 2. bizygomatic breadth (45)/foramen magnum length (7) 3. bizygomatic breadth (45)/foramen magnum breadth (16) 4. bizygomatic breadth (45)/basion-bregma height (17) 5. foramen magnum breadth (16)/skull base length (5) Female skulls have generally higher correlation coefficients values than males which is interpreted as an indication of homogeneous growth.

Cephalometry↗
PubMedDate not supplied

[Morphology of synovial cells of the human in organ and explant cultures].

Biopsy material of synovial tissue was taken from 36 patients (with arthrosis, rheumatoid arthritis, traumatic and unaffected joints). Cell and tissue cultures, as well as cells dissociated by enzymes, were investigated by light microscopy (LM), immunohistochemistry, and electron microscopy. Synovial A-cells were endowed with all morphological characteristics of phagocytic capacity but lacking the peroxidase reaction. In contrast to the monocytes, they were not immunostained by OKM-1 antibodies. The A-cells could be observed in subsequent in vitro growth for up to 2 weeks. In addition to B-cells, a third cell type was identified. This cell type had the morphological characteristics of a dendritic cell and was glass and plastic adherent. It can be referred to also as a stellate cell. We assume that these stellate cells represent modified synovial fibroblasts.

Arthritis, Rheumatoid↗