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We examined 27 resin casts of foetal liver veins and found three types of connection between portal vein and portal sinus. The most frequent connection was endo–lateral (66.7%), when the end of the portal vein joins with the lateral wall of the portal sinus. The next type was latero–lateral (14.8%). In this type, the lateral walls of the portal sinus and the portal vein join together. The last type was latero–lateral through short vessel (18.5%), which resembles the previous one, but there is short vessel between the lateral walls of the portal vein and sinus.
Variations of the intracranial venous sinuses are important to the surgeon during intraoperative procedures and to the clinician during imaging interpretation. We report a male cadaver found to have a rare venous sinus variation. In all likelihood, this sinus corresponded to the rarely reported accessory venous sinus of Hyrtl. The sinus was approximately 5 mm in width and traveled from the sphenoparietal sinus anteriorly to the veins, draining into the foramen spinosum (i.e. the middle meningeal veins) posteriorly. No other variations or obvious pathology were identified intracranially or extracranially. Knowledge of such a venous variation may be of use to the clinician.
We encountered some multiple vessel variations in the retropubic region of a 55-year-old male cadaver. The obturator artery had its origin from the external iliac artery, and inferior epigastric artery from the femoral artery. Additionally, an anastomosis between obturator and inferior epigastric veins (venous Crown of death) was observed.
We report on a unique combination of multiple variations concerning the pectoral muscles and the left external jugular vein. Specifically, a bilateral hypoplasia of the medial clavicular portion of the pectoralis major muscle was noticed along with the coexistence of total right pectoralis minor aplasia, substituted by loose connective and fatty tissue. Simultaneously, a supernumerary anterior-placed external jugular vein was found, which, after its supraclavicular course, pierced the interval between the left clavicular and the sternocostal head, and drained into the left jugular junction. The combination of the above anomalies constitutes an atypical pattern of Poland syndrome. We discuss the related embryological development and the relative literature. Attention was paid to the clinical importance for plastic surgeons, general surgeons, and radiologists, facilitating them with accurate interpretation of anterior thoracic wall findings. (Folia Morphol 2010; 69, 3: 187–191)
The aim of the study was the microscopic evaluation of the human spermatic cord vessels, with special attention to the connection between the testicular artery and the veins of the pampiniform plexus. We used the corrosive cast method to visualise the angioarchitecture of the spermatic cord. Casts were evaluated using a scanning electron microscope. We observed that there is a narrow space (previously filled with the testicular artery wall), between the casts of the testicular artery and the veins of the pampiniform plexus. This area contains a capillary vessel net, which connects the testicular artery with the veins of the pampiniform plexus. There were no direct anastomoses between the testicular artery and the pampiniform plexus. We hypothesise that the capillary net described is the means of connection between the testicular artery and the pampiniform plexus, and that there can be a testicular artery net of its own vessels (vasa vasorum).
Direct analyses were performed on 50 hearts submitted for post mortem examination. The remaining hearts were examined by the corrosion method. The aim of the work was to assess the morphology of the small cardiac vein. The small cardiac vein, which runs along the back surface of the coronary sulcus, would usually drain into the coronary sinus at its right side (86% of cases). Cases of the small cardiac vein draining into the middle cardiac vein were also noticed (12%) or directly into the right atrium (1%). In 1% of the preparations it ran along the right margin in the direction of the apex of the heart. In 30% of the corrosion preparations the small cardiac vein was not accessible with the help of corrosion. In 24% of the dissection preparations it was not possible to reach the small cardiac vein with the help of dissection. A statistically significant relationship was observed between the frequency of the presence or absence of the small cardiac vein and the sex of the donor (p > 0.001). In the group examined the percentage of men who did not have the small cardiac vein was 6 times higher than among the woman. There was no evidence for any statistically significant dependence between the frequency of occurrence or of absence of the small cardiac vein and the technique employed.
It is known that a different ramification pattern can occur as a function of the development of the arteries of the lower limb. During a routine dissection, a variation of the deep femoral artery was found passing in front of the femoral vein in the left lower limb of a 43-year-old male cadaver. This case is reported because of its rare occurrence in the literature. The variation is discussed on the basis of the possible embryological development of the lower limb arteries.
Considerating the origin of the coronary sinus and the oblique vein of the left atrium, both are remnants of the left horn of the embryonal venous sinus. The studies were carried out on 100 human cadaver hearts. The causes of death were not cardiac reasons, no detectable changes in the coronary arteries. In the study, dissections and corrosion technique were used. Heart veins were filled by metacrylan through the coronary sinus. The beginning, the course, the tributaries and the ostium oblique vein of the left atrium to the coronary sinus were investigated. The variability of the length and the venous tributaries and the ostium of the oblique vein of the left atrium were noticed. The variability of the venous tributaries (the dendritic, forked and simple types of the tributaries) was noticed. Four groups of ostium were observed. The ostium oblique vein of the left atrium was situated at the level of: the posterior vein of the left ventricle and also the great cardiac vein, the posterior vein of the left ventricle, the great cardiac vein and the independence ostium.
It is well known that blood from the gastric mucosa of the rat is drained by collecting veins (venules). The aim of this study was to describe hitherto unrecognized saccular dilatations connected with these vessels. Rats received atropine or papaverine l h before ligation of the portal vein, Stomachs fixed in formaldehyde were prepared in toto after clearing in methyl salicylate or processed by standard histological technique. A single stomach contained about 1000 connecting veins localized exclusively in the oxyntic mucosa. After administration of relaxing agents and portal vein ligation the collecting veins were enlarged and in 80 percent of them one to three sacculi filled with blood could be seen. Histological observations shown that collecting veins empty into veins running between lamina muscularis and lamina propria mucosae. Sacculi were partially separated from the lumen of the collecting vein by a tissue band. In view of the relaxing effect evoked by atropine the veins and their sacculi appear to be under vagal control. Conceivably, their alternate expansion and collapse could facilitate movement of glandular content to the surface of the stomach and/or movement of interstitial fluid between cells.
Background. Acute ascending thrombophlebitis of the great saphenous vein (GSV) is an adverse complication of varicose veins of the lower extremities. Conventional surgical treatment comprises traumatic removal of thrombotic vein trunk by means of a Babcock probe. Endovascular welding is a promising, minimally invasive treatment for varicose veins, which may also be applied for hemodynamic correction of impaired venous blood flow of the lower extremities in urgent conditions. Material and methods. Thirty-six patients diagnosed with acute ascending thrombophlebitis type III and IV, stage C2-C6 (CEAP) were treated using an EK300M electric welding device (LLC Svarmed, Ukraine) for high-frequency electric welding of living tissues guided by endovenous probes. Changes in the treated venous trunks were analyzed by ultrasound, and quality of life before and after surgical treatment was evaluated using a chronic insufficiency venous international questionnaire (CIVIQ). Results. Twelve months after high-frequency endovenous electric welding 33 patients (91.41%) had complete occlusion and fibrous transformation in areas of the thrombus segments of the GSV. Two patients (5.54%) had hemodynamically insignificant partial recanalization of separate vein segments, and one patient (2.77%) had complete recanalization of the GSV trunk. Conclusions. Endoscopic welding is an effective, minimally traumatic alternative method for the surgical treatment of acute ascending thrombophlebitis III and VI type of the GSV.
The frequent use of veins in surgery, especially in the replacement of clogged arteries in the lower extremities, persuaded the authors to conduct research concerning the morphology of superficial veins in the human upper extremity. In a post-mortem study a group of 40 male subjects of 22–92 years of age was examined. The preparation of the region of the elbow fossa was performed in order to establish the architecture of superficial veins in the extremity. Many detailed anthropometrical measurements were also carried out, enabling a typological evaluation to be made of the deceased under study. Two characteristic pictures of venous anastomosis were tested, one with symmetrical tributaries to the vena basilica et cephalica and the second characterised by a rich set of tributaries to the vena basilica. The characteristics, calibre and structure of both these suggest a fruitful application of them in vessel surgery. The vena cephalica in particular, taken with efficient valves, may successfully play the role of vessel implant.
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