• Korean Journal of Veterinary Research
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• v.23 no.2
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• pp.137-148
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• 1983

This study was made for the better information of the male reproductive system on the meat-type drake, Cherry Belly X White Golden. The epithelium of ductules of epididymal region and deferent duct were observed histologically and histochemically with the progress of their development. India-ink absorbability on the luminal epithelium was also investigated after the administration of India-ink. The results are as follows; 1. Rete testis and various round ductules in immature form appeared in epididymis within 6 weeks after hatching, and simple cuboidal and simple columnar epithelium were found in the epithelia of the ductules within 8 weeks after hatching. Larger ductules were found on epididymal surface which was in the developing stage near to the immature efferent ductule. From 10th to 20th week, various ductules appeared in epididymis, and developing form of efferent ductules were much more increased on epididymal surface. The luminal epithelium of the ductules were composed of ciliated simple columnar and pseudostratified ciliated columnar cells. At the same time, deferent duct appeared. From the 21th week, various ductules in epididymis became abruptly matured. Lumen of rete testis was lined by simple squamous or simple cuboidal epithelium, and that of efferent ductules, having many folds and being larger than any others were lined by pseudostratified ciliated columnar epithelium in which ciliated columnar cells, non-ciliated cells(clear cells) and basal cells were noted. Connecting tubules of star shaped lumen were composed of pseudostratified ciliated columnar epithelium in which ciliated columnar cells, nonciliated cells, and basal cells were observed. The luminal surface of epididymal ducts was smooth and has thick pseudostratified columnar epithelium which was composed of high columnar cells and basal cells. From 26th week after hatching, sperm pooling was started in various ductules. 2. From 4th to 10th week, simple cuboidal epithelium of deferent duct transformed to simple columnar epithelium with the progress of aging. At the basement of epithelium, clear round cells were noted. From 12th to 20th week, high columnar cells with enlongated nucleus were noted on the luminal border of deferent ducts, forming folds of pseuclostratified columnar epithelium. From 20th week, the deferent duct started to have septa in it's lumen and composed mainly of pseudostratified columnar epithelium, and round cells disappeared. From 20th week, the lumen diameter of deferent duct became wider with the progress of aging, but there was no difference among the values of lumen diameter in upper, middle, and lower part of deferent ducts. At 26th week, the pooling period of sperms in deferent ducts, the lumen diameter became rapidly widen, especially in the lower part of deferent ducts. Thickness of muscular layer of ductus deferens showed gradual growth within 24 weeks but did abrupt thickening from 26th week. 3. Saliva resistant PAS granules were dotted on the top of nucleus in efferent ductules epithelium but the amount of the granules were little in the connecting ductules's epithelium. The granules reactive to acid phosphatase were abundant in the some epithelial cells of efferent ductules and connecting ductules, especially above the nucleus of cells. The granules reactive to alkaline phosphatase were noted on the luminal border of efferent ductules. Parts of free border of efferent ductules and middle portion of deferent ducts were stained slightly by alcian blue technique. India ink granules were found mainly in the epithelium of efferent ductules but were few in that of connecting ductules.

• Korean Journal of Animal Reproduction
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• v.11 no.3
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• pp.189-195
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• 1987

This study was conducted in order to obtain the information of the histological changes in each of six segments of the epididymal ducts in Korean native goats. Thirty-two Korean native male goats were examined, dividing into seven groups, at 4 weeks intervals from 8 to 32 weeks of age. The results obtained were as follows. 1. The epididymal ducts showed histologically an abrupt growth at the age of 16 weeks being followed by almost full maturation at the age of 24 weeks. Diameter of the cauda was steadily larger than that of the caput and corpus of the epididymal ducts. 2. Spermatozoa in the lumen of epididymal ducts were first observable at the age of 16 weeks, thereafter showing sparse in the lumen of caput, whereas most dense in the lumen of cauda in the density of spermatozoa. 3. Ducts in the caput and corpus were lined by ciliated columnar epithelium until the age of 12 weeks, and later by pseudostratified ciliated columnar epithelium which was composed of ciliated columnar cells, clear cells and basal cells. Ducts of cauda epididymis were lined by simple ciliated columnar epithelia until 12 weeks of age and later by simple or pseudostratified ciliated columnar epithelium, and two types of ducts (small ducts with high epithelium and large ducts with lower epithelium) were noted. Nucleus of the epithelial cells in the caput were located in the base of cells but in the corpus and cauda, those were located in the mid part of cells. cilia were most developed in the epithelia of the corpus.

• Korean Journal of Veterinary Research
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• v.24 no.1
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• pp.8-16
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• 1984

The work was conducted with tole purpose of investigation on the development pattern of epididymis in accordance with the growth of meat-type cockerels. 1. Histological features of various ductules in epididymis of the cockerel on the age of weeks were as follow: within 10 weeks after hatching rete testis and connecting ductules were well developed but efferent ductules were observed in immature form. During 10th to 20th week, the lining epithelium of various ductules in epididymis was in the developing stage near to the mature form. From 21th week, various ductules were abruptly matured. Lumen of rete testis was lined by simple squamous or simple columnar epithelial cells and that of efferent ductules, having many folds and being larger than any others, were lined by ciliated pseudostratified columnar epithelium with ciliated columnar cells, clear cells and basal cells were noted. Luminal epithelium of connecting ductules was composed of ciliated low pseudostratified columnar epithelial cells, ciliated columnar cells, clear cells and basal cells. The luminal surface of epididymal ducts was pseudostratified columnar epithelium and which was composed of high columnar cells and basal cells. 2. In the India ink absorption test, India ink granules were noted above the nucleus of some cells in the efferent ductules and the connecting ductules at 7 hours after administration of India ink to the mature epididymis, but not absorbed in the other ductules. The granules reactive to acid phosphatase were most abundant in some epithelial cells of efferent ductules and connecting ductules, especially above the nucleus of cells. The granules reactive to alkaline phosphatase were noted on the luminal border of efferent ductules. The granules reactive to PAS were scattered in the epithelial cells of efferent ductules and connecting ductules.

• Journal of Yeungnam Medical Science
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• v.22 no.2
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• pp.266-269
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• 2005

An intratesticular simple cyst is a rare lesion. The pathogenesis of such lesions is uncertain. Clinically, an intratesticular simple cyst may be difficult to differentiate from a cystic neoplasm. However, preoperative diagnosis is possible using ultrasonography (US). Testis-sparing surgery with simple enucleation of the cyst has a favorable outcome. We report an intratesticular simple cyst in a 48-year-old male who had a non-tender cystic mass in the right testis for 2 years. The diagnosis was made by preoperative US. The patient underwent a testis-sparing surgery. After simple excision of the cyst, histological examination revealed a simple cyst lined by ciliated cuboidal and columnar epithelium.

• Korean Journal of Veterinary Research
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• v.14 no.2
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• pp.159-171
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• 1974

Histological and histochemical studies were made on the lining epithelia of the various ducts in epidymis of the Rooster and absorptive function of the canal epithelial cells in the Rooster epididymis were also investigated after administration of India ink. The results obtained were summerized as follows; 1. Epihtelium lining the rate testis was mainaly composed of single later of cuboidal cells, and was partially composed of flattened squamous or low columnar cells. Efferential ductules were characterized by having many villous projections orrfolds which extened into the lumen, and were lined by stereociliated pseudostratified epithelium which consisted of manily ciliated columnar cells, a few scattered clear cells and basal cells. Connecting ductules were lined by ciliated pseudostriatified colummnar epithelium in which ciliated columnar cells, clear cells and basal cells were noted. Epididymal ducts were lined by pseudostratified epidhelium in which columnar and basal cells were noted. 2. PAS-granules, saliva resistant were noted mainly in the epithelial cells of efferential and connecting ductules. 3. Sudan black B stained heavily the granules in the epithelial cells of sufferential and connecting ductules. 4. The granules reactive to acid phosphatase most abundant in the epithelial cells of efferential ductules and were lesser amount in the epithelial cells of connecting ductules where as very few or no granules were seen in the rest of the ducts. 5. Alkaline phosphatase activity was most prominent but discontinuous in the luminal surface of the epithelium of efferential ductules and less marked in the connecting ductless. No enzyme activity was noted in the canal epithelium of epididyml duct. 6. India ink granules were most numerous in the epithlial cells of efferential ductules and were a few in connecting ductules. Very few or no granules of India ink were noted in the other types of the ducts. India ink granules in the epithelium increased gradually as the time after the administration of India ink (one up to twenty-nine hours) has proceeded. From those results it is suggested that epithelial cells of efferential and connecting ductules have active absorptive function, whereas the rest of duct system in the epididymis of the Rooster may be the mere pathway of the seminal fluid without significant modification of its constituents.

• Journal of Chest Surgery
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• v.27 no.9
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• pp.812-814
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• 1994

The esophageal cyst result from a wrong cleavage of the primitive gut in the 4 weeks embryo. In embryo and after seperation of the tracheal diverticulum, the esophagus is lined with ciliated cells which are able cover a "cystic duplication". It is often difficult to distinguish between the bronchogenic and the esophageal cyst. Pathological findings showed the presence of a ciliated epithelium without cartilage which was diagnosed as an esophageal cyst. The patient was 21 year old man for evaluation of the cyst in the posterior mediastinum. The cyst was located the intramural esophagus. Microscopically, the cyst was lined with ciliated columnar epithelium and there was no evidence of cartilage. The cyst was confirmed as the intramural esophageal cyst.geal cyst.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.18 no.1
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• pp.120-124
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• 1996

The postoperative maxillary cyst develops as a delayed complication after surgical intervention or Caldwell-Luc operation in the maxillary sinus and was also reported that it could occur after Le Fort I osteotomy. This is also called as surgical cliated cyst because of its lining epithelium is usually lined by a pseudo-stratfied ciliated columnar epithelium. This report represents a case of postoperative maxillary cyst which developed within the anterior of maxilla and in association with nasal mucosa 6 years after a Le Fort I osteotomy. In 1989, 26-year-old male complained of his mandibular prognathism and underwent orthogmathic surgery, Le Fort I osteotomy, bilateral sagittal split ramus osteotomy, partial glossectomy.

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

• Applied Microscopy
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• v.15 no.2
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• pp.80-88
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• 1985

The tentacular epithelial cells of Cipangopaludina chinensis were studied with electron microscope. The tentacular epithelium consists of columnar supporting cells, numerous glandular cells and ciliated cells. Glandular cells are classified into three types; type I (mucous metachromasia cell), type II(mucous goblet cell) and type III. Ciliated cells are subdivided into two types; type I ciliated cell has cilia with typical axoneme(9+2), and type II ciliated cell has cilia with unusual axoneme.

• The Korean Journal of Zoology
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• v.39 no.2
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• pp.139-146
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• 1996

A studv on the ultrastructural changes of the hermaprodite duct epithelium in spring and summer specimens of a Korean slug Incirovia fruhstorferi was conducted. In spring specimen, the hermaphrodite duct was 0.3 H 0.2 mm in diameter and seemed to be a little bit abnormal feature, due to shrinkage. The epithelium of the duct was composed of cells containing various-sized vacuoles and their cytoplasm showed high electron density. In summer specimen, the hermaphrodite duct was 0.4 $\times$ 0.23 mm in diameter and seemed to be more voluminous than that of the spring specimen. The lumen of the duct in the summer specimen was lined by a epithelium composed of several cell types such as ciliated cuboidal, pseudostratified cuboidal, ciliated columnar and irregular cells. Phasocvtotic activities of the duct epithelium are observed only in the summer specimen. Both of the duct epithelia in the spring and summer specimens were surrounded by connective tissues at their bases. The results obtained suggest that the duct epithelia of the slugs experience seasonal variation in relation to their reproductive cycles.