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Satheesha B. Nayak 대한해부학회 2017 Anatomy & Cell Biology Vol.50 No.2
Atrial septal defect (ASD) is one of the common congenital anomalies of the heart in humans. Its complications depend on the size of the defect and can manifest at any age. The common symptoms of ASD include dyspnea and fatigue. Most of the ASDs are associated with morbidity and mortality, Earlier the treatment, it is better to the patient. I saw a large ostium secundum defect in the heart of an adult female cadaver during dissection classes for undergraduate medical students. The interatrial septum had large defect at the region where fossa ovalis should have been located. It was about 1.25 inches in diameter and oval in shape. This type of large septal defect might result in cyanosis, stroke or death of the patient at any age.
Surgical and radiological importance of a rare cysto-duodeno-colic peritoneal fold
Satheesha B,Nayak,Bincy M,George,Snigdha Mishra,Surekha D,Shetty,Srinivasa Rao Sirasanagandla,Abhinitha Padavinangadi 대한해부학회 2017 Anatomy & Cell Biology Vol.50 No.2
It is quite common to see abnormal peritoneal folds in the abdominal cavity. Some of them might compress or strangulate the viscera and others might determine the direction of the flow of peritoneal fluid, pus or blood. Many unusual clinically important peritoneal folds such as Ladd’s band, cysto-gastro-colic fold, omento-cystic fold, and cysto-colic fold have been reported earlier. Knowledge of these folds is important for radiologists, gastroenterologists, and surgeons. We report an unusual cysto-duodeno-colic fold observed during our dissection classes. The fold was seen to compress the duodenum and colon. The fold extended from the descending part of the duodenum and the transverse colon to the gallbladder. It enclosed the entire gallbladder. A case similar to this has not been reported yet. It is important for the gastroenterologists and laparoscopic surgeons to be aware of this fold to avoid misdiagnosis and iatrogenic injuries.
A rare additional lobe of cerebellum, projecting from its superior surface
Satheesha Badagabettu Nayak,Suhani Sumalatha,Surekha Devadasa Shetty 대한해부학회 2022 Anatomy & Cell Biology Vol.55 No.3
Human cerebellum plays a vital role in motor coordination, regulation of muscle tone and maintaining the equilibrium of the body. It seldom shows anatomical/morphological variations. Herein, we report the presence of a small additional lobe projecting out on the superior surface of the right cerebellar hemisphere in the para-vermal area in an adult male cadaver. There was a notch on the tentorial surface of the occipital lobe of the right cerebral hemisphere, corresponding to the additional lobe of cerebellum. The additional lobe was histologically normal, with no evidence of any tumour cells. Knowledge of this variation is of importance to radiologists, neuroanatomists and neurosurgeons.
Multiple venous variations at the abdominopelvic region: a case report
Satheesha Badagabettu Nayak,Soumya Kodimajalu Vasudeva 대한해부학회 2022 Anatomy & Cell Biology Vol.55 No.3
Knowledge of vascular variations of the abdominopelvic junction is of importance to surgeons, radiologists, orthopaedic surgeons and other medical disciplines. We report a rare combination of venous variations observed at the abdominopelvic junction of an adult male cadaver. The right common iliac vein was absent. The inferior vena cava was formed by the union of the right external iliac vein and the left common iliac vein. The right internal iliac vein was a tributary of the left common iliac vein. The left common iliac vein was larger than usual in size and its wall was adhered to the right common iliac artery. We discuss the functional, developmental and clinical issues related to the case.
A peculiar liver with surgically and radiologically important variations: a case report
Satheesha B. Nayak,Snigdha Mishra,Bincy M. George,Surekha D. Shetty,Naveen Kumar,Anitha Guru,Srinivasa S. Rao,Ashwini Aithal 대한해부학회 2013 Anatomy & Cell Biology Vol.46 No.1
A peculiar liver was found in an adult male cadaver during a dissection class for undergraduate medical students. Th e quadrate lobe and fi ssure for the ligamentum teres were totally absent. Th us, the cystic notch on the inferior border was very broad and deep, and the fundus and body of the gall bladder popped out through this notch. Th e cystic duct terminated into the right hepatic duct at the porta hepatis instead of terminating into the common hepatic duct. Awareness of variations of the lobes and fi ssures may minimize a misdiagnosis of liver problems. Th e aim of the current study was to alert radiologists and surgeons about possible variations in the external appearance and anomalies of the lobes and fi ssures of the liver.
Terminal bifurcation of the external jugular vein: a rare variation
Satheesha Badagabettu Nayak,Soumya Kodimajalu Vasudeva 대한해부학회 2022 Anatomy & Cell Biology Vol.55 No.4
Variations of external jugular vein are common. Here, we present a rare terminal bifurcation of the left external jugular vein. The left external jugular vein was formed by the union of entire retromandibular vein and posterior auricular vein. One inch above the clavicle, it bifurcated into medial and lateral divisions. The medial division terminated into the internal jugular vein and the lateral division terminated into the subclavian vein. Medial division received a common vein formed by the union of anterior jugular vein and an anonymous vein lying under the sternocleidomastoid muscle. The lateral division received a common vein formed by the union of suprascapular and transverse cervical veins. The knowledge about this variation could be useful to head and neck surgeons, radiologists and plastic surgeons.
Satheesha B. Nayak 대한해부학회 2018 Anatomy & Cell Biology Vol.51 No.4
In this report, four unusual communications between external and internal iliac veins of the left side have been presented. The lowest communication was the narrowest measuring about 2 mm in diameter, the second measured 6 mm, the third had a diameter of 7 mm and the last communication measured 5 mm in breadth. The upper three communications were twisted in a helical manner. The internal iliac vein had its normal tributaries except that the iliolumbar vein drained into the external iliac vein at the level of the third communication. The external iliac vein was slightly dilated just below the level of lowest communication.
Satheesha B. Nayak,Ashwini P. Aithal,Abhinitha Padavinangadi,Gayathri Prabhu 대한해부학회 2018 Anatomy & Cell Biology Vol.51 No.3
Gallbladder shows frequent variations in position, shape, interior, and its duct system. These variations may go unnoticed lifelong; however, they may predispose it for cholecystitis and cholelithiasis. We observed a double pouched gallbladder in an adult male cadaver. The gallbladder was folded to have a sigmoid shape. It had two broad pouches: anterior and posterior and a narrow isthmus in between. Its anterior pouch was covered by peritoneum, whereas the posterior pouch was covered by extrahepatic connective tissue. We discuss the clinical and radiological importance of the case.
Eight prehilar branches of the right renal artery
Satheesha B Nayak,Surekha D Shetty,Swamy Ravindra,Srinivasa Rao Sirasanagandla,Ashwini P Aithal,Jyothsna Patil,Naveen Kumar 대한해부학회 2014 Anatomy & Cell Biology Vol.47 No.3
Imaging technology with its advancement in the field of urology is the boon for the patients who require minimally invasive approaches for various kidney disorders. These approaches require a precise knowledge of the normal and variant anatomy of vessels at the hilum of the kidney. During routine dissections, a variation in the branching pattern of the right renal artery was noted in an adult male cadaver. The right renal artery divided into upper and lower divisions 6cm away from the hilum of the kidney. The upper division gave 4 branches, and the lower division gave two branches. These two branches further bifurcated and gave 2 branches each. Thus, there were 8 prehilar branches of renal artery. The multiple prehilar branches led to a congested atmosphere at the hilum of the kidney. This arterial congestion might result in hindering the blood flow at the renal hilum. Apart from this, it might cause difficulties in diagnostic and therapeutic invasive procedures. Knowledge of this variation is of importance to radiologists and urologists in particular.
Partial duplication of tentorium cerebelli and complete duplication of falx cerebelli
Satheesha B. Nayak,Surekha D. Shetty 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.3
Variations of the dural folds and the dural venous sinuses are infrequently reported in the existing medical literature. Such variations in the posterior cranial fossa may pose difficulties in various analytical and surgical procedures of this region. We present a rare concurrent variation of the falx cerebelli and tentorium cerebelli that was detected during routine dissection of an adult male cadaver. While removing the brain, a partial duplication of tentorium cerebelli was observed below the left half of the tentorium cerebelli and above the left cerebellar hemisphere. This fold did not have any dural venous sinus in it. Further, a complete duplication of falx cerebelli with a single occipital venous sinus within its attached border was also observed. We present the review of literature and discuss the comparative anatomy of this case.