Ethmoid Carcinoma Research Articles

Histological and Electron Microscopic Studies of Endemic Ethmoidal Carcinomas in Cattle

In five cases of endemic ethmoidal carcinoma in cattle from the Dominican Republic three tumor types could be classified: undifferentiated carcinoma (3), adenocarcinoma (1), and squamous cell carcinoma (1). Electron microscopy showed that the tumor cells in undifferentiated carcinomas closely resembled the cells of the normal olfactory mucosa. This was especially true for the dark cells of Bowman's gland. Ultrastructurally, the lymphoid cells of the undifferentiated bovine carcinoma resembled the lymphoid cells of human nasopharyngeal carcinoma being closely associated with Epstein-Barr Virus. This and epidemiological observations suggested a viral cause of endemic ethmoidal carcinoma.

Malignant disease of the antrum.

157 cases of carcinoma of antrum and ethmoid have been studied. An attempt has been made to classify them according to mode of spread, and the salient points of each group have been pointed out. Treatment was based on a combination of radiotherapy and surgery—usually in that order. Radiotherapy technique is discussed together with possible complications and methods of avoiding them. Results are given according to classification, histology, lymph node involvement and method of treatment.

ADENOCARCINOMA OF THE ETHMOID SINUS

CANCER in the ethmoid labyrinth is usually bad news to the practicing otolaryngologist. Almost invariably the malignant cells involve vital adjacent structures before a diagnosis can be made. The early symptoms of nasal obstruction and postnasal discharge can be easily attributed to benign involvements of the nose. Although pain is present in many cases, it is rarely sharp or distinctive until the later stages, and is localized usually in the area of the nasal processes of the frontal bones. It should be remembered that carcinoma of the ethmoid sinuses often spreads rapidly, extending directly to contiguous sinuses, and that the exact point of origin cannot, therefore, always be determined. Ringertz 1 pointed out that in 30 per cent of all cases of ethmoid carcinoma (55 per cent of the cylindric cell type) the disease is associated with polyposis of the nose. One can readily see, therefore, that neglect can easily

Carcinoma of Superior Maxilla and Ethmoid

Carcinoma of Superior Maxilla and Ethmoid

Carcinoma of Right Ethmoid

Carcinoma of Right Ethmoid

Carcinoma of the Ethmoid Treated by Operation and Radium

Carcinoma of the Ethmoid Treated by Operation and Radium

Specimen Showing Invasion of Endocranium by Carcinoma of Ethmoid

Specimen Showing Invasion of Endocranium by Carcinoma of Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid

Papillary Columnar-Celled Carcinoma of Right Antrum and Ethmoid