ABSTRACT
Introduction: Knowledge of morphometry of lip lining help in deciding the best site for choosing graft for its better uptake during several dermal grafting procedures following craniofacial cancers or cosmetic procedures. It also proves useful in dermatopharmacokinetics, in which we monitor the effect of drugs acting on connective tissue by translabial route and lip augmentation surgeries (esthetic surgery) where care is to be given for dermal fillers not to be injected into the muscle core of lip. Materials and Methods: Ten human male cadavers and 10 human female cadavers were procured. The rectangle‑shaped skin specimen (1 cm × 1 cm) through the upper lip was stained with hematoxylin and eosin stain. A total of 40 slides were prepared. Readings were obtained with the help of CATCAM E series HD cameras which was installed in light microscope. Results: The mean value of thickness of skin (epidermis + dermis) of the lip was 664.72 μm among males while 769.20 μm among females. Conclusion: The epithelium of females is marginally thicker than males. Edp: sc (epidermis/stratum corneum) ratio can suggest that giving drugs through translabial route will be easy in females as compared to males in the upper lip as the stratum corneum is the main barrier in drug transfusion and its absorption secondary to epidermis as a whole. The number of rete pegs per field at the dermoepidermal junction was higher in males which ensures more stability of skin of male lips compared to females
ABSTRACT
Knowledge of basic elements provides opportunity to make clear vision of structure of any organ. It is well known that accurate values of thickness of epidermis of skin and its variation with body site, age and sex are important in the fields of medical and biological research. The variations in skin reaction to certain stimuli could be due to biological factors such as the epidermal thickness, dermal thickness, distribution of epidermal appendages etc. Methods: Skin was procured from palm of six freshly embalmed human cadavers. Out of these three were males and three were females. Age of the male and female cadavers ranged between 60 to 70years (mean age 67years). Skin samples measuring 1cm (L) X 0.5cm (B) were taken from center of palm. Tissue was preserved in 10% formaldehyde for 48 hours. Fixed tissue specimens were dehydrated through increasing concentrations (30%, 50%, 70%, 90% and absolute) of ethanol. After clearing the tissue in xylene, embedding was done in paraffin wax. 5 µm thick sections were cut using rotary microtome. Whole thickness of tissue was sectioned. Haematoxylin[Harris’s] and Eosin stained section was observed for 3 different fields thus for each cadaver 27 observations were obtained. Results: In females thickness of epidermis(Edp) of were observed 404.43±23.41µm,thickness of stratum corneum (330±32.83µm),layers of stratum spinosum, stratum granulosum were 4 and 3 respectively, number of rete pegs (7.52±0.94), depth of rete pegs (195.78±18.05µm), thickness of papillary dermis and reticular dermis were(135.92±13.230µm) and (386.10±8.24µm) respectively. Whereas In males thickness of epidermis(Edp) of were observed (296.63±107.03µm),thickness of stratum corneum were (112.20±63.92µm),layers of stratum spinosum and stratum granulosum were 2, number of rete pegs 16.15±3.71, depth of rete pegs (104.56±15.28µm), thicknesss of papillary dermis and reticular dermis were(142.63±40.84µm) and (483.27±116.43µm) respectively. Conclusion: Despite of the fact that subjects from both sexes belonged to the same age group, clear and statistically significant histological differences were observed in the skin of palm. Females showed thicker epidermis as well as stratum corneum but thinner dermis in comparison to males. Males had more number of rete pegs but these are shallower than females.
ABSTRACT
Presence of supernumerary renal artery (accessory renal artery) is the most common anatomical variation of renal arterial systemand is seen with varying frequencies among different ethnic and racial groups. Prior knowledge of these variations is of great surgical importance as it influences the selection of donor kidney, partial nephrectomy and other urological procedures. Aim of the present study was to observe the prevalence of accessory renal artery (ARA) and their distribution pattern with relation to gender and side in adultNorth Indian population. One hundred normal healthy adult (16 males and 84 females; mean age of 43.5±10.42 years) who were prospective voluntary kidney donors underwent MDCTand CTangiography evaluation for the presence of accessory renal artery. Accessory renal artery (ARA) was present in 25.0% kidneys. The prevalence of accessory renal arteries in males and females was similar (25.0%) respectively. On the right side the prevalence of accessory renal artery was 26.0% and on left side it was 24.0%. In males 25% kidneys had unilateral single accessory renal artery. In females 14.3% of left kidneys and 16.7% of right kidneys had a single unilateral accessory renal artery. In 9.5% femalesubjects bilateral accessory renal arteries were present in the kidneys. The prevalence of accessory renal artery in our North Indian population was 25.0%, which is similar to studies from other Asian countries. The distribution pattern was not affected by gender and side. These findings need further validation in a larger cohort of subjects.
ABSTRACT
Aims and Objective: In 70% of normal population, each kidney is applied by a single renal artery. Renal arteriesare known to present with wide range of anatomic variations. These variations are frequently related to thenumber of renal arteries, level of origin, length, diameter and branching pattern. Renal transplantation is theonly curative option for end stage renal disease. Laparoscopic donor nephrectomy has become the preferredtechnique in renal transplant programs. The transplant surgeon requires at least 2 cm of renal artery lengthbefore hilar branching and diameter of 3 mm to ensure adequate vascular anastomosis. Therefore, a priorknowledge of number of renal arteries, the length and diameter of renal artery and branching pattern has becomeessential for renal transplant surgeons.Material and Methods: One hundred prospective healthy voluntary kidney donors (16 males and 84 females;mean age of 43.5±10.42 years), were evaluated for the renal artery anatomy by MDCT and CT angiography as partof preoperative assessment prior to donor nephrectomy. The number, level of origin, the diameter and length ofrenal artery on either side was recorded.Results: Single renal artery was present in 75.5% kidneys. The right MRA originated from aorta at the level of L1vertebra in 78% cases and left MRA originated from aorta at lower level( L2 vertebra) in 47% of cases.The meanlength of left and right renal artery was 26.2±10.6 mm and 29.6±12.8 mm respectively; mean diameter was5.8±1.2 mm and 5.2±1.0 mm respectively. The difference between length and diameter of both sides was statisticallysignificant. The mean diameter of left MRA was 5.8±1.2 mm and right MRA 5.2±1.0 mm and difference wasstatistically significant (p=0.001). Both in males and females the mean diameter of left MRA was more than thatof right MRA.Conclusion: In the present study it was observed that single renal artery was present in 75.5% kidneys. The rightMRA originated from aorta at a higher level compared to left MRA. The left renal artery was shorter and widerthan right renal artery. In 22.5% cases the length of renal artery was less than 2.0 cm.
ABSTRACT
Movements at the human shoulder girdle are the result of complex interplay of glenohumeral, acromioclavicular, sternoclavicular and scapulothoracic articulations. Clavicle apart from articulating with the scapula and sternum is also connected with first rib by costoclavicular ligament and with coracoid process by coracoclavicular ligament. At times the area of attachment of these ligaments on clavicle, first rib and scapula show faceted apophysis suggesting the presence of additional diarthrodial articulations. Costoclavicular joint exists between clavicle and first rib and coracoclavicular joint between clavicle and coracoids process. Both these joints are described in the literature, but the concurrent occurrence of them in the same bone has not been reported yet. We found two clavicles, one of right and other of left side, both of them showed faceted apophysis for costoclavicular and coracoclavicular joint simultaneously, which is rare phenomenon.
Los movimientos de la cintura escapular humana son el resultado de la interacción compleja de las articulaciones glenohumeral, acromioclavicular, esternoclavicular y escapulotorácica. La clavícula, aparte de la articulación con la escápula y el esternón también está conectada con la primera costilla por el ligamento costoclavicular y con el proceso coracoides por el ligamento coracoclavicular. A veces la zona de unión de estos ligamentos de la clavícula, la primera costilla y la escápula muestran procesos facetarios que sugieren la presencia de nuevas articulaciones diartrodiales. La articulación costoclavicular existe entre la primera costilla y la clavícula y la articulación coracoclavicular entre la clavícula y proceso coracoides. Ambas articulaciones están descritas en la literatura, pero la aparición simultánea de ellas en el mismo hueso no se ha informado aún. Se encontraron dos clavículas, uno del lado derecho y otra del lado izquierdo, las dos presentaron procesos facetarios para las articulaciones costoclavicular y coracoclavicular simultáneamente, lo cual es un fenómeno raro.