نتایج جستجو برای: complex choristoma
تعداد نتایج: 784099 فیلتر نتایج به سال:
The topic of this case report is a rare subconjuctival osseous choristoma that corresponded to the left lateral sunconjunctiva and canthus. A 20-year-old man was asymptomatic when he arrived for the examination. His full ophthalmic examination was normal. Orbital computerized tomography was concordant with osseous lesion. Osseous choristomas are the rarest forms of ocular choristomas, they are ...
Introduction: Choristoma is the proliferation of histologically normal tissue in ectopic position. Oral choristoma infrequently occurs soft tissue, with most cases developing on tongue and displaying osseous histological findings. It mostly encountered fifth decade life, but age ranges from 12-to-64 years old, a female predilection. Observations : An 81-year-old man presented an asymptomatic, f...
this work is presented in five parts. in the first part preparation of the starting complex [pt(c^n)cl(dmso)], 1, in which c^n = n(1),c(2?)-chelated, deprotonated 2-phenylpyridine, and dmso = dimethylsulfoxide, and its reaction with 1 equiv of the biphosphine ligands bis(diphenylphosphino)amine, dppa, or bis(diphenylphosphino)methane, dppm, to give the complex [pt(c^n)cl(dppa)], 2, or [pt(c^n)c...
Conjunctival choristoma presents as a painless epibulbar mass comprising epidermal and dermal tissues. Histopathological evidence helps to establish the diagnosis. The tumor manifests in childhood, nonetheless, it may also be seen adolescents.
OBJECTIVES/HYPOTHESIS To review our institutional experience with oral cavity choristomas in children. STUDY DESIGN Retrospective case series and medical record review. METHODS Medical records including clinic notes, operative reports, radiologic studies, and pathology specimens were reviewed. All imaging studies and pathology material were reviewed by a head and neck radiologist and pediat...
Salivary gland choristomata are heterotopic rests which have rarely been reported in the middle ear. A case report of a salivary gland choristoma of the middle ear is presented and the literature reviewed. The frequent association of ossicular chain and facial nerve anomalies is emphasized.
Two cases of osseous choristoma are described. One of the tumours was found in the conjunctiva of the right lower lid, an apparently unique location. The other more typical epibulbar tumour was found in the superior temporal quadrant of the episclera between the lateral and superior rectus muscles. In both instances the tumour was suspected of being a dermoid.
INTRODUCTION Heterotopic gastric mucosa is described almost everywhere in the gastrointestinal tract, from the oral cavity to the rectum. The occurrence of heterotopic gastric tissue in the gallbladder is rare. A choristoma can be defined as a new growth developing from a displaced anlage not normally present in the anatomical site where it developed. We present an extremely uncommon case of a ...
Choristoma is a tumor-like mass consisting of tissues foreign to the site at which they are located. We report an 18 years old male presenting with persistent tonsillitis. Histological examination demonstrated the unexpected presence of a mature island of hyaline cartilage surrounded by lymphoid hyperplasia.
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