• Archives of Plastic Surgery
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• v.32 no.2
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• pp.255-258
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• 2005

The nasopalatine duct cyst, known as the incisive canal cyst, is the most common nonodontogenic cyst in the maxillofacial area. It is believed to arise from epithelial remnants of the embryonic nasopalatine duct. Nasopalatine duct cysts are most often detected in patients between forties and sixties. The trauma, bacterial infection, or mucous retention has been suggested as etiological factors. The cysts often present as asymptomatic swelling of the palate but can present with painful swelling or drainage. Radiologic findings include a well demarcated cystic structure in a round, ovoid or heart shape presenting with a well-defined bone defect in the anterior midline of the palate between and posterior to the central incisors. Most of them are less than 2cm in size. On MRI, the cyst is identified as a high-intensity, well-marginated lesion, which indicates that it contains proteinaceous material. We experienced a case of a 61-year-old female patient who had a $2.3{\times}2.6{\times}1.7cm$ sized nasopalatine duct cyst. The bony defect after a surgical extirpation was restored with hydroxyapatite. So we report a good results with some reviews of the literatures.

• Korean Journal of Head & Neck Oncology
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• v.27 no.2
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• pp.234-236
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• 2011

Thyroglossal duct cyst is the most common congenital neck mass. It develops from remnants of precursors of thyroid gland left behind during embryologic descent form the foramen cecum at the tongue base into the anterior neck during fetal development. An anterior midline neck mass presenting before the age of twenty and displaying vertical movement with tongue protrusion and swallowing is characteristic of this lesion. In this paper, we report on a case of TGDC without remnant duct that is presenting as thyroid cyst.

• Applied Microscopy
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• v.25 no.3
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• pp.20-32
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• 1995

Ultrastructural aspects on the production of the duct cuticle and formation of cuticular precursors within silk glands of the orb web spider, Nephila clavata L. Koch(Araneae: Araneidae), were studied using transmission electron microscope. Four kinds of silk glands(ampullate glands, tubuliform glands, flageliform glands, and aggregate glands), which connected with large spinning tubes(spigots) of the spinnerets, were examined and discussed in terms of cuticle precursor production. Inner cuticular intima which composed of three layers of cuticles-subcuticle, endocuticle and exocuticle- were commonly originated from duct epithelial cells surrounding the cuticle. The morphology and internal textures of each cuticle precursors were very diverse according to the types of silk glands. However several common features were observed. These cuticle precursors were first produced from the rough endoplasmic reticulum and next concentration was accomplished through the Golgi complex. After this step, cuticle precursors were released to the cuticle layer as a form of secretory granule by the mechanism of merocrine secretion commonly.

• Journal of the Korean Professional Engineers Association
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• v.41 no.5
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• pp.65-69
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• 2008

• Radiation Oncology Journal
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• v.32 no.2
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• pp.63-69
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• 2014

Purpose: To find the applicability of adjuvant radiotherapy for extrahepatic bile duct cancer (EBDC), we analyzed the pattern of failure and evaluate prognostic factors of locoregional failure after curative resection without adjuvant treatment. Materials and Methods: In 97 patients with resected EBDC, the location of tumor was classified as proximal (n = 26) and distal (n = 71), using the junction of the cystic duct and common hepatic duct as the dividing point. Locoregional failure sites were categorized as follows: the hepatoduodenal ligament and tumor bed, the celiac artery and superior mesenteric artery, and other sites. Results: The median follow-up time was 29 months for surviving patients. Three-year locoregional progression-free survival, progression-free survival, and overall survival rates were 50%, 42%, and 52%, respectively. Regarding initial failures, 79% and 81% were locoregional failures in proximal and distal EBDC patients, respectively. The most common site was the hepatoduodenal ligament and tumor bed. In the multivariate analysis, perineural invasion was associated with poor locoregional progression-free survival (p = 0.023) and progression-free survival (p = 0.012); and elevated postoperative CA19-9 (${\geq}37U/mL$) did with poor locoregional progression-free survival (p = 0.002), progression-free survival (p < 0.001) and overall survival (p < 0.001). Conclusion: Both proximal and distal EBDC showed remarkable proportion of locoregional failure. Perineural invasion and elevated postoperative CA19-9 were risk factors of locoregional failure. In these patients with high risk of locoregional failure, adjuvant radiotherapy could be considered to improve locoregional control.

• Development and Reproduction
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• v.19 no.4
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• pp.197-207
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• 2015

This study investigated structure and function of the reproductive system in Aplysia kurodai by means of anatomical, histological, and histochemical observation. Reproductive system of this species is consisted of ovotestis, small hermaphroditic duct, ampulla, accessory genital mass and large hermaphroditic duct. The ovotestis is composed of a large number of follicles, and both oocytes and spermatocytes matured in the same follicle. The small hermaphroditic duct is a single tube and contains a swelling, the ampulla, which functions as a storage organ for endogenous sperm and an oviduct. The accessory genital mass is connected to both the small and large hermaphroditic duct, and consisted of three glands: albumen, membrane (winding) and mucus gland. The albumen gland is consisted of granular cells producing basophilic and neutral mucopolysaccharides. The membrane and mucus gland are consisted of granular cells producing acidophilc and sulfated mucopolysaccharides. The large hermaphroditic duct is a single tubular gonoduct linking the accessory genital mass to the common genital aperture but is consisted of two parallel compartments. Internally, these two compartments are incompletely divided by internal septum or fold, which are called as the red hemiduct and white hemiduct, respectively. The red hemiduct functions as an oviduct and the white hemiduct functions as a copulatory duct. The reproductive system of A. kurodai is externally comprised a single tube, i.e., monaulic type. However, internal structure of duct is incompletely divided into oviduct and copulatory duct, i.e., the oodiaulic type.

• Korean Journal of Veterinary Research
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• v.34 no.1
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• pp.1-7
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• 1994

The distribution of the bile and hepatic ducts within the liver of 24 Korean native cattle were observed. Vinylite solution was injected into common bile ducts on 13 cases for cast preparation. The angiography was prepared in 11 cases which were injected 30% barium sulfate solution into the common bile ducts and then radiographed on X-ray apparatus. The results were summarized as follows; 1. The dorsal, intermediate and ventral ducts of left hepatic lobes, ducts of quadrate lobes, and ducts of papillary process were collected into left hepatic ducts. The dorsal and ventral ducts of right hepatic lobe, ducts of caudate process and papillary process were collected into right hepatic ducts. 2. The bile ducts in the left hepatic lobes were collected into dorsal, ventral and intermediate ducts of left hepatic lobes. The intermediate ducts of left hepatic lobes was absent in some cases(5 cases, 20.83%). 3. In some cases, the ventral ducts of right hepatic lobes were collected into right hepatic ducts directly. 4. The ducts of quadate lobes were collected into left hepatic ducts(8 cases, 33.33%), ventral ducts of left hepatic lobes(13 cases, 54.17%), and dorsal duct of left hepatic lobes, intermediate and ventral ducts of left hepatic lobe, common trunk collected into intermediate and ventral duct of left hepatic lobe and left hepatic duct(1 cases, 4.17%) respectively. 5. The ducts of papillary process were collected into left and right hepatic ducts(12 cases, 50%), left hepatic ducts only(11 cases, 45.83%) or right hepatic duct only(1 cases, 4.17%). 6. The average length of right hepatic ducts was 26.87(6-45.8)mm. The average length of left hepatic ducts was 56.68(6-127)mm. The length of gallbladder was 128.60(104-160)mm on the average. The breadth of gallbladder was 67.16(38.4-153.4)mm on the average. But there was a difference in the length and the breadth according to the quantity of bile. 7. The ramified angles of dorsal, intermediate and ventral ducts of left hepatic lobes, ducts of quadrate lobes, ducts of papillary processes and caudate processes, dorsal and ventral ducts of right hepatic lobes and cystic ducts were 130-170, 160-200, 190-250, 240-300, 90-140, 320-350, 30-100, 270-330 and 240-300 degrees respectively.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.19
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• pp.8423-8427
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• 2014

Background: Cancer is the most common cause of death in Thailand, where treatment outcomes and prognosis are poor and mortality rates remain high. This study reports new cancer cases and trends of all cancers registered in Srinagarind Hospital from 1993 to 2012 and also provides a picture of the cancer situation in Northeast Thailand. Materials and Methods: All new cases of cancer registered in the hospital-based cancer registry at Faculty of Medicine, Srinagarind Hospital, Khon Kaen University during 1993-2012 were included in the study. Results and Conclusions: The number of new cancer cases has gradually increased each year during the last 20 years. The three most common cancers at present in males are liver and bile duct cancer, lung cancer and colorectal cancer, respectively. In females, liver and bile duct, breast and thyroid cancers are now the most frequent. Interestingly, the number of cases of both liver and bile duct cancer and colorectal cancer in males noticeably increased during the second decade of the study. Additionally, breast cancer greatly increased in the same decade and lung cancer in females climbed into the top five most common cancers. Thyroid cancer has also risen steadily in the last decade. Trends of common cancers are similar to those throughout Thailand.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.1 no.1
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• pp.144-147
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• 1998

Isolated injury to the extrahepatic biliary tract following blunt abdominal trauma is rare, and there is little information especially in children regarding the endoscopic diagnosis and management of occult injury to the biliary tract. We experienced a 5-year-old boy who presented with jaundice 16 days after blunt abdominal trauma and was diagnosed as isolated distal common bile duct stricture by ultrasonography of abdomen. We could get more detailed information about the injury by endoscopic retrograde cholangiopancreatography. We could also manage this isolated common bile duct stricture successfully with endoscopic nasobiliary drainage and plastic stent insertion instead of surgical correction. There appeared to be no recurrence of stricture as evidenced by biochemical test and ultrasonography during 2 years of follow up.

• Parasites, Hosts and Diseases
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• v.61 no.2
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• pp.194-197
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• 2023

Ascaris lumbricoides causes one of the most common soil-transmitted helminthiases globally. The worms mostly infect the human small intestine and elicit negligible or nonspecific symptoms, but there are reports of extraintestinal ectopic ascariasis. We describe a rare case of biliary ascariasis mistaken for biliary stent in a 72-year-old female patient with a history of liver resection. She visited our outpatient clinic complaining of right upper quadrant pain and fever for the past week. She had previously undergone left lateral sectionectomy for recurrent biliary and intrahepatic duct stones 2 years ago. Besides mildly elevated gamma-glutamyl transferase levels, her liver function tests were normal. Magnetic resonance cholangiopancreatography revealed a linear filling defect closely resembling an internal stent from the common bile duct to the right intrahepatic bile duct. A live female A. lumbricoides adult worm was removed by endoscopic retrograde cholangiopancreatography (ERCP). Despite a significant decrease of the ascariasis prevalence in Korea, cases of biliary ascariasis are still occasionally reported. In this study, a additional case of biliary ascariasis, which was radiologically misdiagnosed as the biliary stent, was described in a hepatic resection patient by the worm recovery with ERCP in Korea.