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Dive into the research topics where Yukiya Yoshida is active.

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Featured researches published by Yukiya Yoshida.


Digestive Endoscopy | 2008

COMPARISON OF ENDOSCOPIC DETECTION RATE OF EARLY GASTRIC CANCER AND GASTRIC ADENOMA USING TRANSNASAL EGD WITH THAT OF TRANSORAL EGD

Yukiya Yoshida; Yoko Hayami; Masaki Matuoka; Satoshi Nakayama

Background:  To investigate the influence of the reduced image quality of transnasal esophagogastroduodenoscopy (EGD) with the ultrathin endoscope (transnasal EGD) on endoscopic diagnoses, we compared the detection rate (DR) of early gastric cancer and gastric adenoma by transnasal EGD with that of transoral EGD using a standard endoscope.


Digestive Endoscopy | 1991

Ectopic Sebaceous Glands in the Esophagus: Report of Two Cases

Yoshio Hoshihara; Mitsuyo Hashimoto; Yukiya Yoshida; Kazuo Hayakawa; Sohtaro Fukuchi; Masamitsu Unakami

Abstract: Reports of ectopic sebaceous glands in the esophagus are rare. Six postmortem cases and eight antemortem cases have been reported. In 1990, we studied two patients with ectopic sebaceous glands in the esophagus that were found during endoscopy and confirmed histologically. These lesions macro‐scopically resembled gastric xanthomas.


Digestive Endoscopy | 1999

A Case of Hemophilia B with Esophageal Varices Treated by Sclerotherapy with Factor‐IX Complex

Shinsuke Kayashima; Naoya Murashima; Kazuo Takei; Satoshi Nakayama; Masaki Matsuoka; Yukiya Yoshida; Kazuo Hayakawa; Sohtarou Fukuchi; Takahiro Fujioka; Kenichi Ohba

A 64‐year‐old man with hemophilia B and HCV‐positive chronic hepatitis who had been followed at our hospital presented with hematemesis. Gastrointestinal fiber‐scopy (GIF) demonstrated a small active gastric ulcer (Az stage) at the pyloric ring and esophageal varices (F1 Lm Cw RC(+)). He was admitted and the esophageal varices were safely and successfully treated by sclerotheapy. Sclerotherapy was performed by in‐traluminal injection of 4 mL 5% ethanolamine oleate with sufficient supplementation of factor‐lX complex (PPSB ‐HT) for four days to a total amount of 24,000 U. The patient was followed with GIF and endoscopic ultrasonography. Sclerotherapy proved effective after six months. We report a rare case of hemophilia B with esophageal varices successfully treated by sclerotherapy.


Journal of Gastroenterology | 1998

Gastrojejunal fistula caused by gastric ulcer

Masaki Matsuoka; Yukiya Yoshida; Kazuo Hayakawa; Sohtaroh Fukuchi

Abstract: We report a case of gastrojejunal fistula caused by benign gastric ulcer, a very rare condition. The patient was an 81-year-old-woman who had had multiple recurrences of gastric ulcer. She also had diabetes mellitus. She was admitted to our hospital because of a left femoral head fracture, necessitating a mechanical bone head exchange operation. She had severe abdominal pain and anemia on the 48th postoperative day. Gastroendoscopic examination revealed a giant ulcer with a long-axis diameter of more than 5 cm on the lesser curvature of the gastric body. She was treated with intravenous famotidine and all oral intake was restricted; her symptoms were alleviated. Two weeks later, a fistula had formed between the stomach and the jejunum just anal to the duodeno-jejunal flexure. She was placed on an ulcer diet, and was discharged with no symptoms on the 151st postoperative day. She has remained asymptomatic for 1½ years to date. Lack of H2-antagonist administration, operative stress, and administration of ipriflavone appeared to have induced gastric ulcer recurrence, and formation of the fistula between the stomach and the jejunum seemed to have been facilitated by the patient being very lean and having minimal mesenteric adipose tissue.


Digestive Endoscopy | 1992

A Case of Spontaneous Regression of Primary Malignant Lymphoma of the Stomach

Kazuo Hayakawa; Sohtaro Fukuchi; Yukiya Yoshida; Mitsuyo Hashimoto; Yoshio Hoshihara; Shigesaburo Miyakoshi; Kyoo Nanaumi; Masamitsu Unakami

A 62‐year‐old female who complained of discomfort in her upper abdominal region and a poor appetite had an endoscopically documented polypoid lesion with a shallow irregular central depression at the lesser curvature of the angulus. A diagnosis of malignant lymphoma was made following a gastric biopsy. A gastric endoscopy performed about 20 days later revealed a marked increase in size with an ulcerated surface the margin of which had an auricle‐like shape. These findings were compatible with a diagnosis of malignant lymphoma of the stomach. No medical therapy, such as antineoplastic agents, was given during the follow‐up period. A gastric resection was performed 1.5 months after the initial endoscopy. A detailed histopathological examination of the resected gastric specimen revealed a U1‐II type ulcer scar but no malignant lymphoma cells. Very few cases of a complete spontaneous regression of a malignant lymphoma of the stomach have been reported either within or outside of Japan though it is well known that lymphomas show rapid morphological changes in some patients who are followed‐up without any specific therapy. These rare case reports in the literature are reviewed and discussed together with our present case.


Acta Gastro-Enterologica Belgica | 1986

ENHANCEMENT OF EDGE IN TV-ENDOSCOPIC PICTURE BY USING A HARDWARE

Yoshio Hoshihara; Sohtaro Fukuchi; Kazuo Hayakawa; Naoyuki Yamada; Yukiya Yoshida; Mitsuyo Hashimoto; Tadayoshi Takemoto; Masao Suda; Ken-ichi Kato


Acta Gastro-Enterologica Belgica | 1989

OBSERVATION OF THE HEALING PROCESS OF GASTRIC ULCERS USING TV-ENDOSCOPE

Mitsyo Hashimoto; Yoshio Hoshihara; Yukiya Yoshida; Kazuo Hayakawa; Sohtaro Fukuchi


Pediatric Dermatology | 2004

A case of phlebosclerotic colitis with typical radiologic and endoscopic features

Masaki Matsuoka; Yukiya Yoshida; Yoko Hayami; Kazuo Hayakawa; Hiroko Endo; Daigo Yamana; Koji Yuba; Hiroaki Takeo


Acta Gastro-Enterologica Belgica | 2000

A CASE OF DISAPPEARANCE OF NAKAMURA'S II-TYPE OF GASTRIC POLYPS BY ERADICATION OF HELICOBACTER PYLORI

Yukiya Yoshida; Masaki Matuoka; Satoshi Nakayama; Kazuo Hayakawa; Sotaro Fukuchi; Noriyuki Kuwabara


Progress of Digestive Endoscopy(1972) | 1999

A Coexisting Case of a Gastric Cancer and a Primary Malignent Lymphoma of the Stomach

Keiichi Fujino; Kazuo Hase; Chiyuki Watanabe; Susumu Matsukuma; Masaki Matsuoka; Yukiya Yoshida; Kazuo Hayakawa; Sotaro Fukuchi

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Kazuo Takei

Tokyo Medical University

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Keiichi Fujino

National Defense Medical College

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Susumu Matsukuma

National Defense Medical College

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