An autopsy case of amniotic band syndrome with bilateral epibulbar choristoma is described. The left eye reveals a complex choristoma and the right eye a dermis-like choristoma. Both choristomatous lesions included lenticular tissue suggesting that rupture of the amnion, which is the initial event of amniotic band syndrome, might have occurred at about the fourth week of gestation. Since the ot...

developmental midline perinasal masses in children are rare lesions specifically in association with choristomas. we encountered a 3-year-old boy with epiphora, a striking mass on the nasal bridge and ipsilateral nasal hypoplasia. ct scan imaging showed multiple calcified areas within the tumor in addition to linear defect in frontal bone, hypoplastic left ethmoidal sinus and left nasal cavity,...

To newly describe the clinical and histopathological characteristics of epibulbar complex cartilaginous choristoma incidentally observed in a series of pterygium excision patients.Noncomparative case series with chart review of 8 patients.During a 4-year period, we identified 8 cases of conventional unilateral nasal subpterygial cartilaginous choristoma in 1799 pterygium patients and analyzed t...

1 Zimmerman LE. Phakomatous choristoma of the eyelid. A tumor of lenticular anlage. Am J Ophthalmol 1971;1(Part 2):169–77. 2 Shin HM, Song HG, Choi MY. Phakomatous choristoma of the eyelid. Korean J Ophthalmol 1999;13:133–7. 3 Sinclair-Smith CC, Emms M, Morris HB. Phakomatous choristoma of the lower eyelid. A light and ultrastructural study. Arch Pathol Lab Med 1989;113:1175–7. 4 Ellis FJ, Eagl...

= Abstract = Review of 8 cases of heterotopic lacrimal gland tissue in epibulbar conjunctival region disclosed frequent mixture of pilosebaceous structure, adipose tissue, smooth muscle. etc. The term complex choristoma appears appropriate to designate a mixture of this variety, although each element can be predominant in a single lesion. Complex choristoma containing lacrimal gland was commonl...

Lingual osseous choristoma is an extremely rare condition, of which only 61 cases have been reported. Monserrat in 1913 was the first to report this bony lesion on the dorsum of the tongue and it was labelled as lingual osteoma, the term that normally describes neoplastic pathology. Krolls et al changed this term later to osseous choristoma, which means normal tissue in an abnormal location. Th...

~a l iva ry gland choristoma is a rare tumor of the middle ear. This entity was first described by Taylor and Mart in ~ in 1961 and has since been reported 18 additional times. 2-18 Caplinger and Hora 4 recounted an additional case described to them by oral communication. Another case report of cylindroma of the tympanic cavity may have actually been a salivary gland choristoma. 19 Choristoma i...

Osseous choristoma is a rare, benign lesion of the oral cavity. This report presents a case of osseous choristoma in the submental region of a 30-year-old female subject. Her chief complaint was a painless swelling in the submental region. Panoramic radiography showed a well-defined, round, radiopaque lesion near the inferior border of the left mental region. The lesion was diagnosed as an osse...