MYOEPITHELIAL HAMARTOMA OF SMALL INTESTINE

Adult renal myoepithelial hamartoma.

A renal myoepithelial hamartoma presented as a lucent filling defect with gross hematuria in an adult female. Preoperative studies caused conflicting impressions. The predominance of smooth muscle and incorporated tubuloepithelial elements characterize the tumor as a hamartoma of myoepithelial type. Pertinent review of the literature confirms the rarity of this lesion in adults.

Neuromuscular and vascular hamartoma of the small intestine: is it Crohn's disease?

Neuromuscular and vascular hamartoma has been described as a specific, if rare, stricturing condition of the small intestine. In this paper four cases with very similar macroscopic and histological features to those described as 'neuromuscular and vascular hamartoma' are presented. In three of the patients there was an earlier histologically proven diagnosis of Crohn's disease of the small inte...

Histomorphometric changes of small intestine in pregnant rat

Food intake of rats increases during pregnancy. This requires changes in the structure of the small intestine to absorb additional food. The aim of the present study was to investigate the morphological changes in the layers of small intestine in rats during pregnancy. Duodenum, jejunum and ileum of 18 pregnant Sprague-Dawley rats (day 7, 14 and 21 of pregnancy) were collected. Villous height a...

Myoepithelial hamartoma of the stomach simulating a gastric carcinoma. A case report.

Myoepithelial hamartoma is a very rare submucosal tumor of the stomach. Magnus-Alsleben first described 5 cases of this tumor in 1903. More recently (1993) Vandelli et al. published a review of the literature comprising only 33 cases. Histologically, the tumor is characterized by hypertrophic smooth muscle bands surrounding diverse epithelial elements that can be arranged in different ways: as ...

Duplication of small intestine.