| 13284-000 | 113,300 (税別103,000)円 |
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- 病理模型
- 臓器
- 消化管
- 3Dプリント
EZ-285
NEW！ヒルシュスプルング病
| 特長 | 本製品の説明は英語のみです。 Product information "Hirschsprung‘s Disease" Clinical History A 5-year old male presents with a history of constipation since birth. A barium enema showed a constricted rectum with a dilated sigmoid colon. Surgical resection of constricted section of bowl was attempted but the patient died during the surgery. Pathology This postmortem section of sigmoid colon has been opened to display the internal surface shown here. There is large dilation of the proximal section of bowel (sigmoid ) with loss of the normal mucosal pattern. The distal section of bowel (rectum) has a normal diameter and a normal mucosal pattern but an absence of ganglion cells in the myenteric plexus. This is an example of Hirschsprung‘s disease, also known as congenital aganglionic megacolon. Further Information Hirschsprung‘s disease is characterised by lack of coordinated peristaltic contraction in a segment of bowel, due to a lack of parasympathetic ganglia. It mainly affects the rectum but the length of the aganglionic sections vary. It is caused by defective proximal to distal migration of neural crest cells from the caecum to rectum during embryogenesis, which leads to development of a distal bowel segment lacking both a myenteric and submucosal plexus. This causes an obstruction with hypertrophy and dilation of the proximal normally innervated colon, which can lead to perforation, peritonitis, enterocolitis and electrolyte imbalances. It occurs in 1 in 5000 live births. It is more common in males, those with siblings with Hirschsprung’s disease and those with other developmental disorders, such as Down Syndrome. Mutations in the receptor tyrosine kinase RET, which is necessary for neural crest cell migration, account for a majority of the familiar cases and 15% of the sporadic cases. Patients typically present with failure to pass meconium within 48 hours of birth. Less severe cases present later with chronic constipation, vomiting, abdominal pain and distension. Treatment involves resection of the aganglionic section of bowel with anastomosis of the normal sections of bowel to the rectum. |
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| 仕様 | エルラージマー社製 |
| 消耗品購入 | |
| 備考 | メーカー品番：MP2079 Erler-Zimmer GmbH & Co.KG の模型製品は、日本国内において株式会社京都科学の独占販売製品です。 |
| 医療機器クラス分類 | なし |
| 特定保守管理医療機器 | 該当なし |
| JANコード | なし |
| 更新年月日 | 2020年06月11日 |
