• Journal of Korean Neurosurgical Society
• /
• v.64 no.5
• /
• pp.726-731
• /
• 2021

Objective : Distinguishing between an infundibulum and a true aneurysm is clinically important. This study aimed to evaluate whether using source image based new three-dimensional rotational angiography (S-n3DRA) can increase the rate of aneurysm detection and improve distinction between a true aneurysm and an infundibulum. Methods : Twenty-two consecutive patients with 23 lesions, were evaluated by time-of-flight (TOF) magnetic resonance angiography (MRA), S-n3DRA, and digital subtraction angiography (DSA). The data were retrospectively and independently reviewed by two neurointerventionists, and the diagnoses based on TOF MRA, S-n3DRA, and DSA were compared. The diagnostic efficacy (interobserver agreement and diagnostic performance) of S-n3DRA was compared with that of TOF MRA. Results : S-n3DRA showed higher interobserver agreement (κ=0.923) than TOF MRA (κ=0.465) and significantly higher accuracy than MRA in distinguishing an aneurysm from an infundibulum (p=0.0039). Conclusion : Compared to MRA, S-n3DRA could provide better screening accuracy and information for distinguishing an aneurysm from an infundibulum. Therefore, S-n3DRA has the potential to reduce the need for DSA.

• Korean Journal of Poultry Science
• /
• v.26 no.3
• /
• pp.171-177
• /
• 1999

This study was conducted for the histological observation of the infundibulum of the oviduct of the laying Korean native pheasants. The results are as follows : 1. The infundibular wall is composed of the epithelium, lamina propria, muscle layer(inner circular and outer longitudinal muscle), and serosa. The funnel lip is divided into the inner, and outer lip of the epithelium and muscle layer. 2. The epithelium of the funnel lip and most region of the cranial part of the funnel are composed of ciliated columnar cells. In the surface and lateral part of the folds, ciliated cells and non-ciliated secretory cells tend to alternate in the epithelium of the caudal funnel and the necks, but are also found in groups of the simple cuboidal epithelium at the bases of the grooves between the ridges and tubular glands found in the subepithelium. 3. The secretory material of the non-ciliated secretory cills contains PAS-positive and alcian blue-positive granules, and these materials show purple colour in the basic fuchsin-methylene blue stain. 4. The cells of the glandular groove and tubular gland of the neck portion of the oviduct mostly show weak PAS-positive, and alcian blue stain negative reaction. The tubular gland cells of the infndibulum contain pink of purple colour granules, and without reaction in the anterior neck portion of the infundibulum in basic fuchsin and methylene blue stain.

• Korean Journal of Head & Neck Oncology
• /
• v.37 no.2
• /
• pp.57-60
• /
• 2021

Tumor of follicular infundibulum (TFI) is a rare benign cutaneous appendage tumor that does not have characteristic clinical features. It is mainly present in the head, neck, and trunk as a solitary lesion. In particular, TFI typically manifests as a plate-like proliferation with multiple thin epidermal connections comprise of monomorphic cells. TFI do not represent cutaneous characteristics, but have clinical significance because TFI is associated with basal cell carcinoma and Cowden's syndrome. We report a case of TFI in parietal scalp with a review of literatures.

• Journal of Korean Neurosurgical Society
• /
• v.29 no.6
• /
• pp.822-825
• /
• 2000

Lymphocytic infundibuloneurohypophysitis is a rare inflammatory disorder, which may be caused by autoimmune response, affecting the infundibulum and the posterior lobe of the pituitary gland. The authors present a 15-year-old man with central diabetes insipidus, whose sellar magnetic resonance imaging (MRI) showed a focal thickening of the infundibulum and loss of high signal of the normal neurohypophysis on T1-weighted images. The histopathological diagnosis was lymphocytic infundibuloneurohypophysitis. When a patient presents with central diabetes insipidus and infundibular thickening on brain MRI, this entity should be included in the differential diagnosis though it is very rare. The significance of this entity in treatment is that it is basically not a surgical one, and surgery is needed only for tissue diagnosis. Symptomatic treatment and observation make it regress spontaneously.

• Journal of Chest Surgery
• /
• v.28 no.11
• /
• pp.1045-1048
• /
• 1995

Pulmonary atresia with VSD is uncommon congenital anomaly with high mortality in neonatal period.Recently we experienced surgical correction of pulmonary atresia with VSD. The case was 2 month old male patient diagnosed as pulmonary atresia with VSD and PDA. Atretic pulmonary artery segment from Rt ventricular infundibulum to pulmonary artery was lcm in length. The pulmonary trunk tapered toward Right ventricular infundibulum and resulted in blind pouch with diameter of lmm. The left pulmonary artery was stenosed at just proximal and distal part to which PDA was connected. Total correction was undertaken which consisted of PDA ligation, dacron patch closure of VSD, establishment of continuity between right ventricle and pulmonary artery with autogenous pericardium. Postoperative systolic fight ventricular pressure and left ventricular pressure ratio was 0.7. In patient with pulmonary atresia with VSD it is advisable to perform a corrective operation, whenever the size and anatomy of pulmonary artery are acceptable for it.

• Korean Journal of Veterinary Pathology
• /
• v.7 no.1
• /
• pp.63-65
• /
• 2003

A 10-year-old Korean native female Jin-do dog revealed two growing subcutaneous masses measuring 7.0 ${\times}$ 7.0 ${\times}$ 2.5 cm and 5.0 ${\times}$ 4.0 ${\times}$ 2.0 cm in the left shoulder and lower part of chest, respectively. Grossly tumor masses were well-circumscribed and exhibited ulcerated surface and purulent exudate on the cut surface. Histologically tumor masses were characterized by cystic structures some of which were fused together. Although the cells of cyst wall differentiated to those similar to infundibulum, isthmus, inferior segment of hair follicles, respectively, the most cyst wall consisted of cells similar to infundibulum The luminal content of cysts depended on the cells of cysts; infundibulum-like cyst contained lamellar keratin, isthmus-like cyst was amorphous keratin, and inferior segment-like cyst had shadow cells. From these results, these tumor masses were diagnosed as multiple trichoepithelioma. To our knowledge, this is the first report of canine multiple trichoepthelioma in a dog in Korea.

• Journal of Chest Surgery
• /
• v.11 no.1
• /
• pp.65-68
• /
• 1978

The unusual congenital anomaly, double chambered right ventricle due to aberrant muscle band with intact ventricular septum in 10 years old female patient is presented. The pressure gradient is 70mmHg between inflow tract and outflow tract of right ventricle and the aberrant muscle band is 2X4.5cm arising below the infundibulum and traverses the right ventricular cavity, extending from its anterior wall to the crista supraventricularis forming broad triangular base in parietal anterior wall. By resecting out this muscle band clearly, the outflow tract obstruction is completely relieved.

• Journal of Animal Science and Technology
• /
• v.51 no.6
• /
• pp.485-492
• /
• 2009

Estrogen has dramatic effects on the development and function of the reproductive tract in mammals. Although diethylstilbestrol (DES) triggers the development of reproductive organs in immature animals, continued exposure to DES induces dysfunction of the female reproductive tract in mice. To investigate the effects of neonatal estrogen exposure on the reproductive tract of female chickens, we implanted DES pellets into the abdominal region of immature female chicks and then examined the effects of DES on the oviducts of both immature chicks and sexually mature chickens (30 weeks old). DES induced mass growth and differentiation of the oviduct in immature chicks. The chick oviduct increased by 2.7- and 29-fold in length and weight, respectively, following primary DES stimulation. In secondary DES stimulation, the length and weight of the chick oviduct increased by 4.5- and 74-fold, respectively. Additionally, DES treatments caused abnormal development of the infundibulum and magnum in hen oviducts. Furthermore, infundibulum abnormality gave rise to unusual ovulation of follicles and resulted in infertility and dysfunction of the magnum, such as less production of egg white proteins. Our results indicate that DES exposure during early developmental stages in chickens has detrimental effects on the development and maintenance of the female reproductive tract after sexual maturation.

• Journal of Embryo Transfer
• /
• v.7 no.2
• /
• pp.111-115
• /
• 1992

This experiment was carried out to study the behavior of the estrus cycle in sows shortened uterine horns and to see whether the embryos could be recovered nonsurgically. The uteri of sows(n=4) were surgically shortened. It took about 3 hours to surgically remove the middle section of both uterine horns. The lengths of the shortened uterine horns were 18.7 to 29.5cm. After treatment, two sows exhibited natural estrus and the intevals from surgery to estrus were 8 days and 15 days, respectively. But the sows were not successful on synchronization and superovulation with PMSG and PGF$_2$$\alpha$. In the resurgery for confirmative examination, the sows had 6 and 7 corpus lutelin in ovaries, respectively. One sow had a small adhesion between the infundibulum and ovary, and the other sow had unilateral uterine obstruction at the sutured position and purulent materials in the uterus.

• Korean Journal of Poultry Science
• /
• v.26 no.1
• /
• pp.27-33
• /
• 1999

The distribution of oviductal vessels of eight Korean native pheasants was observed after Latex casts of vessels. Latex was injected into thoracic aorta and posterior vena cava of these birds for cast preparation. The results were as follows: 1. The arteries suppling oviduct of the Korean native pheasants contained A. oviductalis cranialis, media, caudalis and vaginalis. The veins drainaging oviduct were stretched along the following ateries and all of the oviductal vessels were situated on the left side of the body. 2. The anterior oviductal artery arose from the pubic artery of the left external iliac artery and distributed to the infundibulum and the magnum of the oviduct. 3. The middle oviductal artery arose from the left sciatic artery and distributed to the isthmus and shell gland of the oviduct. 4. The caudal artery arose from the left internal pudendal artery of the median sacral artery and distributed to the caudal part of uterus and the cranial part of vagina. 5. The vaginal artery arose from the left internal pudendal artery of median sacral artery and distributed to the caudal part of vagina.