introduction: heterotopic gastrointestinal cyst of the oral cavity is an extremely rare lesion with fewer than 40 cases reported in the english literature. it usually involves the soft tissue covering the floor of the mouth and the tongue. lining of this lesion resembles gastric or intestinal mucosa. case report: in this report we describe the lesion in two boys and discuss their pathogenesis.

Objective: To compare the corneal stromal demarcation line depth after Epithelium-On and Epithelium-Off crosslinking in patients with keratoconus using anterior segment Optical Coherence Tomography (AS-OCT).
 Study design: Quasi-experimental study.
 Place Duration of Study: Armed Forces Institute Ophthalmology, Rawalpindi Pakistan from Jun 2018 to 2019.
 Methodology: This study i...

background: vitamin d plays a critical role in the regulation of growth and differentiation of squamous epithelium. the pleiotropic effects of 1,25-dihydroxyvitamin d3 [1,25(oh)2d3], include proliferative, pro-apoptotic, and pro-differentiation effects on numerous cell types. although 1,25-dihydroxyvitamin d3 is involved in the regulation and differentiation of epithelium, there is no data in t...

purpose: true neoplasm (adenocarcinoma) of retinal pigment epithelium (rpe) is very rare since it can be misdiagnosed as intraocular malignant melanoma it is of importance to know the clinical and pathologic aspects of this neoplasm. here, we report a case of adenocarcinoma of rpe. methods: case report. results: a 60-year-old man with progressive loss of the vision of the right eye was enucleat...

Endocervical polyp represents as a benign, exophytic lesion constituted of variable admixture proliferating endocervical glandular epithelium and metaplastic squamous permeated with fibro-vascular core. The commonly encountered is frequently accompanied by chronic inflammation, erosion superficial epithelial surface reactive alterations layering epithelium.

  The distribution and localization of acid and neutral mucins in various cells lining the olfactory epithelium of Cyprinus carpio have been studied histochemically by employing the PAS-AB technique. Variations in the localization of protein in different cells lining the olfactory epithelium have been correlated with the functional significance of the region concerned. Intense localization of t...

background: keratinocyte growth factor (kgf) is a potent epithelial mitogen that acts by binding the kgf receptors (kgfrs) expressed on epithelial cells and regulates proliferation and differentiation. the objective of this study was to investigate the expression of kgf in the epithelium in oral precancer. materials and methods: archival tissues of oral submucous fibrosis (smf) and leukoplakia ...

  The distribution and localization of acid and neutral mucins in various cells lining the olfactory epithelium of Cyprinus carpio have been studied histochemically by employing the PAS-AB technique. Variations in the localization of protein in different cells lining the olfactory epithelium have been correlated with the functional significance of the region concerned. Intense localization of t...

this study was carried out to investigate the histological and anatomical description of the male genital tract in iranian native white roosters (iwr). the seminiferous tubules had a dense and compact organization. an average of 12 layers of cells was seen in the seminiferous tubules epithelium. the spermatogonal cell layer showed some variation between different birds in 1-3 layers; however, t...