Inverted papillomas of nasal cavity and paranasal sinuses
- 1 October 1982
- journal article
- research article
- Published by Springer Nature in Virchows Archiv
- Vol. 397 (2), 215-226
- https://doi.org/10.1007/bf00442391
Abstract
10 cases of inverted papillomas of nasal cavity and paranasal sinuses were examined electron microscopically with particular regard to the epithelial-stromal interface. The papilloma cells were clearly demarcated from the stromal tissue by a basement membrane-like material. However, this structure mainly consisted of two or more layers, occasional breaks in the basement membrane were visible. Within the basal epithelial cells resting on the basement membrane accumulations of actinlike microfilaments could sometimes be observed. Furthermore, in the stromal tissue some myofibroblasts were present in the vicinity of the papillomatous cell complexes and capillary vessels also demonstrated several layers of basement membrane. All the changes presented here are considered to be the result of a permanent interaction between aggressive forces of papilloma cells and the defence mechanism of stromal tissue. The results allow the conclusion that inverted papillomas of nasal cavity and paranasal sinuses are true neoplasms with very low malignancy.Keywords
This publication has 36 references indexed in Scilit:
- Inverted Papilloma of the Nasal SeptumJAMA Otolaryngology–Head & Neck Surgery, 1980
- Inverting papillomas of the nose and paranasal sinusesThe Laryngoscope, 1980
- Epithelial-Stromal Interface in Normal and Neoplastic Human Bladder EpitheliumUltrastructural Pathology, 1979
- Objectivity in the classification of tumours of the nasal epitheliumPublished by Oxford University Press (OUP) ,1975
- The inverted schneiderian papilloma: A clinical and pathological study.The Laryngoscope, 1975
- Papillomas of the Nasal and Paranasal CavitiesSouthern Medical Journal, 1975
- Inverting papilloma of the nose and paranasal sinuses: Report of 30 casesThe Laryngoscope, 1971
- Inverted Papilloma of the Nasal CavityJAMA Otolaryngology–Head & Neck Surgery, 1966
- The Problem of Malignant Transformation in a Nasal Papilloma: Report of a CaseJAMA Otolaryngology–Head & Neck Surgery, 1965
- Papillary lesions of the nasal cavity and paranasal sinuses. Part II: Inverting papillomas. A study of 29 casesThe Laryngoscope, 1963