It is as much diverged from the spiralian stereotype as the nemertean pilidium, with which Owenia's development indeed shares some traits, including enlarged first quartet micromeres, gastrulation by invagination
into a large blas-tocoel, and the formation of a convoluted primary ciliated band from numerous proliferative cells.
Similarities are also seen in the type of invagination
, with the postsynaptic element invaginating into the presynaptic cells in both Octopus vulgaris and Aplysia californica (Budelmann and Thies, 1977; Bailey and Thompson, 1979).
We have not observed an actual epidermal invagination
associated with the proboscis rudiment, although it is possible that it is present in earlier stages (before hatching).
of epidermis that is filled with keratinous material and invagination
not related to hair follicle are consistent with the diagnosis of NC.
Gastrulation follows by invagination
to form a ciliated, pelagic planula larva.
Retrograde Dunndarm invagination
nach Gastroenterostomie," Acta Chirurgica Scandinavica, vol.
The use of mechanical stapler can circumvent the problem; however, it was not used in our study and management was performed successfully by ICT and base invagination
by purse-string sutures.
After resuscitation, a CT scan was performed, which showed dilatation of small intestine because of ileocecal invagination
in osteogenesis imperfecta and related osteochondrodysplasias: medical and surgical management.
A prominent parakeratotic column within an epidermal invagination
that displays loss of the granular layer is found overlaying an eccrine duct with a dilated acrosyringium.
Serous tumours, of which 50% are usually seen in women <40 years of age,  develop by invagination
of the surface epithelium of the ovary and secrete serous fluid.
Histology of the lesion showed keratin-filled epidermal invagination
with parakeratotic columns of keratinocytes denoting cornoid lamella.