@article{oai:miyazaki-u.repo.nii.ac.jp:00003261,
 author = {村上, 隆之 and Murakami, Takayuki and 板垣, 博 and Itagaki, Hiroshi and 斎藤, 勇夫 and Saito, Isao and 芦沢, 広三 and Ashizawa, Hirozo and 野坂, 大 and Nosaka, Dai and 板垣, 博 and Itagaki, Hiroshi},
 issue = {1},
 journal = {宮崎大学農学部研究報告, Bulletin of the Faculty of Agriculture, Miyazaki University},
 month = {Sep},
 note = {Nakamatsu et al. discovered Concinnum ten (Yamaguti, 1939) in the pancreatic duct of a domestic racoon-dog (Nyctereutes procyonoides viverrinus) in 1964. We observed infestation with Concinnum ten in any of the three racoon-dogs captured in 1969 to 1970 in Miyazaki Prefecture in the island of Kyushu, Japan. From this observation; we came to form a conjecture that the racoon-dogs inhabiting the Miyazaki area are fairly widely infested with the fluke in question.
    We have carried out parasitological and pathological examinations on the test specimens and found out the following.
    (1) The shape and various measurements of the flukes sampled from the first racoon-dog are as follows.
    The body is flat and rhombic- or spindle-shaped ; it is 1.30-1.60 mm in length and 0.70-0.87 mm in width. The oral sucker is located at the front end of the body on the median line and is 0.14-0.21 by 0.13-0.18 mm in size. The acetabulum is located at a site one third of the body length from the front and is much larger than the oral sucker, measuring 0.21-0.35 by 0.24-0.39 mm. The pharynx is 0.060-0.070 by 0.072-0.085 mm. The esophagus is short (0.080-0.125 mm) and narrow. The caeca divide into two branches immediately in front of the acetabulum and each branch runs along the side of the body while enlarging slightly near the testes and ends at the middle of the body or at a site one third of the body length from the rear. The testes are oval or round, 0.11-0.15 by 0.07-0.10 mm in size, and present symmetrically on both sides in contact with the rear edge of the acetabulum. The cirrus pouch is shaped like a slightly curved column, smooth on the surface, 0.11-0.16 by 0.05-0.08 mm in size, located in the front of the acetabulum, and somewhat slanted. The ovary is round or oval, located in the rear of the left testis, and 0.055-0.068 mm in size. The receptaculum seminis is circular or conical, located in contact with or slightly apart from the rear of the ovary, and 0.050-0.095 by 0.070-0.132 mm in size. The Mehris gland is 0.050-0.075 by 0.080-0.100 mm in size and located in the center of the body roughly on the median line. The uterus is long, runs winding in a complicated manner while occupying the greater part of the rear half of the body, finally runs toward the front, and opens into the genital pore in the front of the acetabulum. A large number of eggs are present in the uterus. The vitelline glands are present roughly in the center of the body on both sides, and part of the vitelline glands overlaps with the terminal portion of the caeca. The vitelline duct traverses immediately below the ovary and ends near the Mehris gland. The eggs are oval or oblong and those near the genital pore are embryonated. The fluke eggs are 45.0-60.6 by 25.0-35.5μ in size and yellowish brown. The excretory vesicles are rod-shaped and observed in the rear one third of the body but not in the rest. 
    The pathological findings of the pancreas infested with the fluke under study are as follows.
    Visual inspection revealed only infestation of the pancreatic duct (main duct) which runs lengthwise through the middle of both lobes with the fluke and slight ectasis and hypertrophy; no other definite pathological changes were observed. On the other hand, under microscope, hyperplasia of the mucous membrane is fairly extensive; the epithelium protrudes into the cavity of the duct papilliferously and at the same time a large number of crypts are formed in the depth of the mucosal layer presenting a feature of glandular hyperplasia. Cell infiltration, mainly plasma cells mixed with a small number of eosinophil leukocytes, was observed in the lamina propria mucosae. The extent of hyperplasia of the connective tissues in the submucosal layer varies with the infested specimen; the hyperplasia was practically not noticed for the first specimen whereas it was slight for the second. On the other hand, the hyperplasia was fairly extensive for the third specimen, affecting the neighboring pancreatic tissues and presenting a mild cirrhotic change. In all the three specimens, flattening of the mucosal epithelium or thinning of the mucosal layer was not observed. Moreover, the formation of nodules of eggs which is a singular pathological change seen fairly frequently in the pancreas of cattle infested with Eurytrema flukes is not observed in the walls of the infected pancreatic duct and in the surrounding tissues for any of the three specimens.},
 pages = {96--103},
 title = {宮崎県下で捕獲したタヌキのConcinnum ten (Yamaguti, 1939) 寄生例について},
 volume = {17},
 year = {1970},
 yomi = {イタガキ, ヒロシ and イタガキ, ヒロシ}
}