scholarly journals Malignant Transformation of Schneiderian Papilloma Presenting With Progressive Binocular Diplopia and Blepharoptosis

Cureus ◽  
2020 ◽  
Author(s):  
Oraianthi Fiste ◽  
Anastasia Tsiogka ◽  
Eleni Arvanitou ◽  
Athanasios Karampeazis ◽  
Charalampos Christofyllakis
Keyword(s):  
Malignant Transformation ◽  
Schneiderian Papilloma ◽  
Binocular Diplopia

scholarly journals Schneiderian Papilloma of the Nasopharynx

2002 ◽  
Vol 81 (5) ◽  
pp. 336-338 ◽  
Author(s):  
Wong-Kein Low ◽  
Song-Tar Toh ◽  
Chee-Meng Lim ◽  
Girija Ramesh
Keyword(s):  
High Resolution ◽  
Minimally Invasive ◽  
Malignant Transformation ◽  
Rare Case ◽  
Schneiderian Papilloma

We report a rare case of a schneiderian papilloma of the nasopharynx. Because this tumor is locally invasive, has a tendency to recur, and can undergo malignant transformation, it should be completely excised. It is possible to completely remove such a tumor in a minimally invasive way by using a combination of transnasal and transoral approaches and high-resolution angled endoscopes and other suitably designed instruments.

Malignant transformation of a Schneiderian papilloma presenting with isolated sixth nerve palsy

2012 ◽  
Vol 27 (2) ◽  
pp. 262-263 ◽  
Author(s):  
Christopher Kobylecki ◽  
Kanna K. Gnanalingham ◽  
Calvin Soh ◽  
Daniel du Plessis ◽  
Hisham H. Hamdalla
Keyword(s):  
Malignant Transformation ◽  
Nerve Palsy ◽  
Schneiderian Papilloma ◽  
Sixth Nerve Palsy ◽  
Sixth Nerve

scholarly journals Schneiderian Carcinoma

2020 ◽  
Vol 7 (2) ◽  
pp. 476-480
Author(s):  
Ledisda Apriana ◽  
Udadi Sadhana ◽  
Indra Wijaya ◽  
Vega Karlowee
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Malignant Transformation ◽  
Squamous Cell ◽  
Malignant Tumours ◽  
Schneiderian Papilloma ◽  
Fibrous Stroma ◽  
Eosinophilic Cytoplasm ◽  
Nonkeratinizing Squamous Cell Carcinoma ◽  
Epidemiological Characteristics

Latar Belakang: Squamous Cell Carcinoma (SCC) adalah keganasan paling umum dari kepala dan leher (sekitar 3%), tetapi hanya <1% dari seluruh jenis keganasan (insidensi jarang), yang dibagi menjadi jenis keratinizing dan non-keratinizing. Nonkeratinizing squamous cell carcinoma mempunyai berbagai nama lain, salah satunya Schneiderian carcinoma. Dahulu, Schneiderian carcinoma disebut sebagai Carcinoma Ex-Schneiderian Papilloma (malignant transformation). Atas kelangkaan dan keberagaman penamaan kasus ini, maka penulis tertarik untuk menyajikan kasus ini. Laporan Kasus: Seorang laki-laki 68 tahun datang dengan keluhan utama benjolan di leher kanan. Dilakukan tindakan wide eksisi dan rekontruksi, kemudian dikirimkan sampel untuk pemeriksaan histopatologi, didapatkan gambaran kelompok-kelompok sel epithelial ganas, dengan inti bulat oval, pleomorfik, hiperkromatik, berkromatin kasar, sitoplasma eosinofilik, mitosis dapat ditemukan, tumbuh papilifer, infiltratif diantara dalam stroma jaringan ikat fibrous. Dilakukan pemeriksaan lanjutan dengan pengecatan imunohistokimia yang memberikan hasil: CK5/6 positif, P63 positif, dan Ki67 positif > 80%. Diskusi: Ciri dan gejala pada pasien ini sesuai dengan kekhasan epidemiologi berdasarkan literatur. Berdasarkan pemeriksaan histopatologis dan pulasan imunohistokimia menyokong diagnosis Squamous cell carcinoma, transisional differenteated (Schneiderian carcinoma) regio colli sisi dekstra. Kesimpulan: Pemeriksaan histopatologi dan imunohistokimia pada kasus Schneiderian carcinoma ini menjadi penting serta harus dibedakan dengan jenis lainnya karena masing-masing manajemen dan prognosisnya pun berbeda. Kata Kunci: Schneiderian carcinoma, nonkeratinizing squamous cell carcinoma, transisional differenteated, Carcinoma Ex-Schneiderian Papilloma.    Background: Squamous Cell Carcinoma (SCC) is rare, accounting for <1% of malignant tumours and only about 3% of malignancies of the head and neck, that includes a keratinizing and a non keratinizing type. Nonkeratinizing squamous cell carcinoma has various other names, which one is Schneiderian carcinoma. In the past, Schneiderian carcinoma was referred to as Carcinoma Ex Schneiderian Papilloma (Malignant Transformation). Based on the scarcity and diversity of naming these cases, the authors are interested to presenting this case. Case Description: A 68-year-old man comes with a complaint of a lump in the right neck. Wide excision and reconstruction were carried out, then samples were sent for histopathology, a description of malignant epithelial cell groups, with oval, pleomorphic, hyperchromatic, coarse chromatin nuclei, eosinophilic cytoplasm, mitosis can be found, papilliferous growth, infiltrative within the tissue fibrous stroma. Follow-up examination with immunohistochemical staining that gave results: CK5/6 positive, P63 positive, and Ki67 >80%. Discussion: Characteristics and symptoms in these patients are consistent with epidemiological characteristics based on literature. Based on histopathological and immunohistochemical examination support to diagnosis Squamous cell carcinoma, transitional differenteated (Schneiderian carcinoma) in colli region right side. Conclusion: Histopathology and immunohistochemistry examination in the case of Schneiderian carcinoma are important and must be distinguished from other types because each management and prognosis are different. Keywords: Schneiderian carcinoma, nonkeratinizing squamous cell carcinoma, transisional differenteated, Carcinoma Ex-Schneiderian Papilloma.

Application of Transmission Electron Microscope and Scanning Electron Microscope in experimental tumor studies

1990 ◽  
Vol 48 (3) ◽  
pp. 306-307
Author(s):  
Gao Fengming
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Malignant Transformation ◽  
Transmission Electron Microscope ◽  
Experimental Tumor ◽  
Transmission Electron ◽  
Embryo Cells ◽  
Tumor Studies ◽  
Scanning Electron

Transmission electron microscope(TEM) and scanning electron microscope(SEM) were widely used in experimental tumor studies. They are useful for evaluation of cellular transformation in vitro, classification of histological types of tumors and treating effect of tumors. We have obtained some results as follows:1. Studies on the malignant transformation of mammalian cells in vitro. Syrian golden hamster embryo cells(SGHEC) were transformed in vitro by ThO2 and/or ore dust. In a few days after dust added into medium, some dust crystals were phagocytized. Two weeks later, malignant transformation took place. These cells were of different size, nuclear pleomorphism, numerous ribosomes, increasing of microvilli on cell surface with various length and thickness, and blebs and ruffles(Figs. 1,2). Myelomonocytic leukemic transformation of mouse embryo cells(MEC) was induced in vitro by 3H-TdR. Transformed cells were become round from fusiform. The number of mitochondria and endoplasmic reticulum was reduced, ribosomes and nucleoli increased, shape of nuclei irregular, microvilli increased, and blebs and ruffles appeared(Fig. 3).

378: 14-3-3 Expression Patterns in the Human Kidney: From Fetal Development to the Adult State to Malignant Transformation

2005 ◽  
Vol 173 (4S) ◽  
pp. 103-103
Author(s):  
Adam G. Baseman ◽  
Andrew J. Kirsch ◽  
Fray F. Marshall ◽  
Haiyen E. Zhau ◽  
Leland W.K. Chung ◽  
...  
Keyword(s):  
Malignant Transformation ◽  
Fetal Development ◽  
Expression Patterns ◽  
Human Kidney
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