The Experts below are selected from a list of 546 Experts worldwide ranked by ideXlab platform
Leonard Mahomva - One of the best experts on this subject based on the ideXlab platform.
-
squamous cell carcinoma of the oral cavity Maxillary Antrum and lip in a zimbabwean population a descriptive epidemiological study
Oral Oncology, 2006Co-Authors: Midion Mapfumo Chidzonga, Leonard MahomvaAbstract:Summary Squamous cell carcinoma accounts for approximately 90% of oral malignancies. The objective of this study was to document the gender, age, sub-site distribution and histologic differentiation of squamous cell carcinoma of the oral cavity, Maxillary Antrum and lip in a Zimbabwean population. Hospital records of patients with a histologic diagnosis of squamous cell carcinoma of the oral cavity, Maxillary Antrum and lip seen at Harare Central Hospital and Parirenyatwa Hospital in Zimbabwe during the period January 1982–December 1991 were reviewed. 20.8% (n = 358/1723) were squamous cell carcinoma of the oral cavity, Maxillary Antrum and lip. Age ranged from 3 to 70 years with a 2:1 male:female ratio. Peak incidence in both sexes were in the 41–50 and 51–60 years age groups. Sub-site distribution was mandibular gingiva 18.4%, tongue 17.9%, floor of the mouth 16.2%, Maxillary gingiva 9.2%, buccal mucosa 9.2%, Maxillary Antrum 12.6%, hard palate 7.8%, soft palate 4.8%, lower lip 2.8% and upper lip 1.1%. 64.8% were well differentiated, 24.8% moderately differentiated and 10.4% poorly differentiated. The mandibular gingiva, floor of the mouth and tongue were most commonly affected. Lip squamous cell carcinoma was uncommon. Well-differentiated squamous cell carcinoma was most common in the 41–60 years age group.
Jens Overgaard - One of the best experts on this subject based on the ideXlab platform.
-
cancer of the nasal cavity and paranasal sinuses a clinico pathological study of 277 patients
Acta Oncologica, 1997Co-Authors: Grethe Harbo, Cai Grau, Troels Bundgaard, Marie Overgaard, O Elbrond, Helmer Sogaard, Jens OvergaardAbstract:In the period 1963-1991, a total of 277 consecutive patients with malignant tumours of the nasal cavity and paranasal sinuses were treated at Aarhus University Hospital. The major histological types included squamous cell carcinoma (46%), lymphoma (14%), adenocarcinoma (13%), and malignant melanoma (9%). Kaplan-Meier estimates of 5-year corrected survival (death from cancer) showed the best prognosis for adenoid cystic carcinoma (87%), adenocarcinoma (65%) and lymphoma (56%), and the poorest prognosis for undifferentiated carcinoma (17%) and malignant melanoma (24%). The 5-year corrected survival for squamous cell carcinoma was 35%. Of the 180 patients with treatment failure, the vast majority occurred locally (n = 166); a minor proportion was regional (n = 23) or distant (n = 30). For the 195 patients with carcinoma, the following parameters were of statistical prognostic significance (5-year corrected survival): histological differentiation (moderate-well 65% vs. poor 22%), primary T-site (nasal cavity 56% vs. Maxillary Antrum 39% vs. other sinuses 24%), tumour stage (T2 68% vs. T3 37% vs. T4 29%), nodal stage (N0 48% vs. N1-3 21%), treatment (radiotherapy + surgery 56% vs. radiation alone 35%).
Alice Y Matoba - One of the best experts on this subject based on the ideXlab platform.
-
the silent sinus syndrome a cause of spontaneous enophthalmos
Ophthalmology, 1994Co-Authors: Charles N S Soparkar, Robert C Kersten, James R Patrinely, Mary Jean Cuaycong, Roger A Dailey, Peter A D Rubin, John V Linberg, Gene R Howard, Donald T Donovan, Alice Y MatobaAbstract:Purpose: Spontaneous enophthalmos and hypoglobus, in the absence of other symptoms and unrelated to trauma or surgery, may be alarming to both physician and patient. The authors describe the clinicopathologic features of a benign syndrome ("silent sinus syndrome") with this constellation of features and discuss the possible pathophysiology. Methods: A multicenter retrospective search for similar clinical cases was performed. All clinical records, computed tomographs, and pathology reports for each case were reviewed at one center. A literature search for similar cases also was conducted. Results: Nineteen cases of a new syndrome are presented. This syndrome affects individuals at approximately the fourth decade of life (average age, 36 years; range, 29–46 years); is characterized by bone resorption and remodeling of the orbital floor due to otherwise asymptomatic Maxillary sinus disease; is associated with ipsilateral Maxillary sinus hypoplasia; and is not fully explained by any previously described, classic cystic lesion of the Maxillary Antrum. Conclusion: Enophthalmos and hypoglobus unassociated with prior trauma, surgery, or other symptoms may represent "silent sinus syndrome," which is ipsilateral Maxillary sinus hypoplasia and orbital floor resorption.
Midion Mapfumo Chidzonga - One of the best experts on this subject based on the ideXlab platform.
-
squamous cell carcinoma of the oral cavity Maxillary Antrum and lip in a zimbabwean population a descriptive epidemiological study
Oral Oncology, 2006Co-Authors: Midion Mapfumo Chidzonga, Leonard MahomvaAbstract:Summary Squamous cell carcinoma accounts for approximately 90% of oral malignancies. The objective of this study was to document the gender, age, sub-site distribution and histologic differentiation of squamous cell carcinoma of the oral cavity, Maxillary Antrum and lip in a Zimbabwean population. Hospital records of patients with a histologic diagnosis of squamous cell carcinoma of the oral cavity, Maxillary Antrum and lip seen at Harare Central Hospital and Parirenyatwa Hospital in Zimbabwe during the period January 1982–December 1991 were reviewed. 20.8% (n = 358/1723) were squamous cell carcinoma of the oral cavity, Maxillary Antrum and lip. Age ranged from 3 to 70 years with a 2:1 male:female ratio. Peak incidence in both sexes were in the 41–50 and 51–60 years age groups. Sub-site distribution was mandibular gingiva 18.4%, tongue 17.9%, floor of the mouth 16.2%, Maxillary gingiva 9.2%, buccal mucosa 9.2%, Maxillary Antrum 12.6%, hard palate 7.8%, soft palate 4.8%, lower lip 2.8% and upper lip 1.1%. 64.8% were well differentiated, 24.8% moderately differentiated and 10.4% poorly differentiated. The mandibular gingiva, floor of the mouth and tongue were most commonly affected. Lip squamous cell carcinoma was uncommon. Well-differentiated squamous cell carcinoma was most common in the 41–60 years age group.
Grethe Harbo - One of the best experts on this subject based on the ideXlab platform.
-
cancer of the nasal cavity and paranasal sinuses a clinico pathological study of 277 patients
Acta Oncologica, 1997Co-Authors: Grethe Harbo, Cai Grau, Troels Bundgaard, Marie Overgaard, O Elbrond, Helmer Sogaard, Jens OvergaardAbstract:In the period 1963-1991, a total of 277 consecutive patients with malignant tumours of the nasal cavity and paranasal sinuses were treated at Aarhus University Hospital. The major histological types included squamous cell carcinoma (46%), lymphoma (14%), adenocarcinoma (13%), and malignant melanoma (9%). Kaplan-Meier estimates of 5-year corrected survival (death from cancer) showed the best prognosis for adenoid cystic carcinoma (87%), adenocarcinoma (65%) and lymphoma (56%), and the poorest prognosis for undifferentiated carcinoma (17%) and malignant melanoma (24%). The 5-year corrected survival for squamous cell carcinoma was 35%. Of the 180 patients with treatment failure, the vast majority occurred locally (n = 166); a minor proportion was regional (n = 23) or distant (n = 30). For the 195 patients with carcinoma, the following parameters were of statistical prognostic significance (5-year corrected survival): histological differentiation (moderate-well 65% vs. poor 22%), primary T-site (nasal cavity 56% vs. Maxillary Antrum 39% vs. other sinuses 24%), tumour stage (T2 68% vs. T3 37% vs. T4 29%), nodal stage (N0 48% vs. N1-3 21%), treatment (radiotherapy + surgery 56% vs. radiation alone 35%).