Ileocolic invagination in the adult may be caused by adenocarcinoma and lead to intestinal obstruction. We report a case of a cecal adenocarcinoma that was complicated by an ileocolic invagination in a 38 year old female, diagnosed on a contrast enhanced CT scan of the abdomen and highlights the importance of contrast enhanced CT for diagnosis of ileocolic invagination.

A fundamental phenomenon in development is the capacity of sheets of cells to bend inward, thereby positioning some of the cells from these sheets below the surface on which they were originally placed. This process, known as invagination, generates folds or depressions in a previously uniform surface. Eventually, these groups of cells separate from their original neighbors and generate new int...

Background: Invagination of appendicular stump during appendicectomy has traditionally been practiced by many surgeons despite lack of evidence to justify its benefit. This prospective randomized clinical study was conducted to evaluate, in our setting, the necessity of appendicular stump invagination during appendicectomy. Methods: A prospective randomized clinical study was conducted at Bugan...

Institute and personal experience (over 25 years) of basilar invagination was reviewed. The database of the department included 3300 patients with craniovertebral junction pathology from the year 1951 till date. Patients with basilar invagination were categorized into two groups based on the presence (Group A) or absence (Group B) of clinical and radiological evidence of instability of the cran...

Epithelial invagination is necessary for formation of many tubular organs, one of which is the Drosophila embryonic salivary gland. We show that actin reorganization and control of endocycle entry are crucial for normal invagination of the salivary placodes. Embryos mutant for Tec29, the Drosophila Tec family tyrosine kinase, showed delayed invagination of the salivary placodes. This invaginati...

T cell activation is driven by the TCR and complemented by costimulation. We have studied the dynamics of ligand-engagement of the costimulatory receptor CD2 in T cell/APC couples. Thousands of ligand-engaged CD2 molecules were included in a large T cell invagination at the center of the cellular interface within 1 min of cell couple formation. The structure and regulation of this invagination ...

Localized cell shape change initiates epithelial folding, while neighboring cell invagination determines the final depth of an epithelial fold. The mechanism that controls the extent of invagination remains unknown. During Drosophila gastrulation, a higher number of cells undergo invagination to form the deep posterior dorsal fold, whereas far fewer cells become incorporated into the initially ...

abstract : dens invagination (di) is a developmental abnormality of teeth which frequently results in a complex internal anatomy of the root canal system. di type 3 is an anomaly characterized by infolding of enamel and dentin extending into the root apex. this may present difficulties when forming a diagnosis and treatment plan. many treatment modalities have been presented in case reports for...

introduction: tomographical maps from the serial sections for light microscopy were prepared and reconstructed by autocad software. materials and methods: in this study, the three-dimensional reconstruction method was used and the following results were obtained (see below). results: 1) the surface ectodermal epithelium was thick and invaginated. 2) the invagination of surface ectodemal epithel...

During embryonic development of many organisms, the movement and folding of epithelial layers give rise to a variety of tissues and organs. Epithelial invagination is a morphogenetic movement by which the epithelium folds inward through a process involving individual cell shape changes (reviewed by Ettensohn, 1985; Fristrom, 1988). Several general models have been proposed to explain how an epi...