Journal

The Journal of the Japanese Society for Clinical Microbiology

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[Vol.22 No.2 contents]
Japanese / English

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Article in Japanese

ArticleTitle A Case of Recurrent Mastitis Caused by Corynebacterium kroppenstedtii
Language J
AuthorList Yoshiaki Sugahara1), Kiyofumi Ohkusu2), Yoshihito Ohtsuka3), Eiko Sakata4), Takeyasu Suda5), Masataka Nakae1), Koichi Sibasaki6)
Affiliation 1) Department of Clinical Laboratory Medical Hospital, The Nippon Dental University School of Life Dentistry at Niigata
2) Department of Microbiology Regeneration and Advanced Medical Science, Gifu University Graduate School of Medicine
3) Devision of Clinical Laboratory, Kameda General Hospital
4) Devision of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences
5) Department of Surgery Medical Hospital, The Nippon Dental University School of Life Dentistry at Niigata
6) Department of Internal Medicine Medical Hospital, The Nippon Dental University School of Life Dentistry at Niigata
Publication J.J.C.M.: 22 (2), 161-166, 2012
Received January 6, 2012
Accepted April 16, 2012
Abstract We report a 36-year-old woman with an abscess of her right breast whose primary complains were breast pain and fever. Gram staining revealed Gram-positive rods eated polymorphonuclear leukocytes. The specimen of abscess was cultured at 35°C, on the second day colonies formed which appeared white,nonhemolytic in the blood agar. The biochemical profile of the isolate was determined by the API Coryne system,but was not recognized by the database.Comparative 16S rRNA gene sequence analysis demonstrated the strains represent within the species Corynebacterium kroppenstedtii. C. kroppenstedtii is characterized by lipophilic corynebacteria. They grew well on Trypticase Soy agar which contains 1%Tween80 in aerobic condition. We would propose that Gram staining and culture by Trypticase Soy agar added Tween80 is important in the clinical specimen with granulomatous mastitis and persistent mastitis.
Keywords Corynebacterium kroppenstedtii, mastitis, lipophilic corynebacteria
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