A rare cause of bilateral exophthalmos: about one case with a sphenoid mucocele

Background: Mucocele is a benign cystic pseudo-tumor that develops within the sinus cavities. The most frequent locations are frontal and frontoethmoidal. The sphenoidal forms are rare. We report a case of sphenoidal mucocele revealed by bilateral exophthalmos. Methods and results: We report the case of a 14 year old male patient, without any particular pathological history, referred by his ophthalmologist for bilateral nasal obstruction, bilateral exophthalmos and visual acuity decrease evolving since one year. The ENT examination found a large, renitrant mass, filling the entire right nasal cavity. This mass pushed the nasal septum to the left. The CT scan showed a large sphenoidal, hypodense mass evoking a mucocele. The patient underwent endonasal marsupialization by endoscopic guidance. Conclusions: Sphenoidal mucocele is a rare cause of bilateral exophthalmos. The diagnosis can be misplaced when the signs are overt extra-sinus. Hence the interest of CT in order to eliminate other differential dignostics.

Complications of sinusitis: An 80-case series from the ENT and neurosurgery departments of the Fann university hospital center of Dakar, Senegal

INTRODUCTION

Locoregional complications of sinusitis are dominated by oculo-orbital and/or cranioencephalic manifestations that may be life-threatening or jeopardize functional prognosis. The aim of this study was to report epidemiological, diagnostic and therapeutic aspects.

MATERIALS AND METHODS

A retrospective study included inpatients managed for sinusitis complications in the ENT and neurosurgery departments of the Fann university hospital center in Dakar, Senegal between January 1, 2005 and December 31, 2016.

RESULTS

In all, 80 files were collected. Mean age was 18.5 years, with male predominance. Mean time to treatment was 18.2 days. Cranio-encephalic complications were the most frequent (54 cases; 67.5%): mainly subdural empyema (30 cases) and brain abscess (10 cases). Seventeen patients (21.25%) had oculo-orbital complications: mainly orbital cellulitis (52.9%) and preseptal cellulitis (29.4%). Nine patients (11.25%) had both cranioencephalic and oculo-orbital complications. Acute sinusitis (82.5%) was the main cause of complications. 52.5% of patients showed pansinus involvement. Medical treatment consisted in broad-spectrum antibiotic therapy combining third-generation cephalosporins, metronidazole and gentamycin in cranio-encephalic complications and clavulanic acid and metronidazole in oculo-orbital complications. Thirty-four patients (42.5%) underwent surgical sinus drainage. Neurosurgical drainage was performed in 35 cases (43.75%). Post-treatment course was marked by 6.25% mortality (5 cases) and 16.25% sequelae.

CONCLUSION

With 6.25% mortality and a high rate of functional sequelae, complications of sinusitis are a serious concern in our region. Improving prognosis requires earlier management and better coordination between health professionals.

Corynebacterium senegalense sp. nov. and Arthrobacter senegalensis sp. nov., two new Actinobacteria isolated from skin swab from the palm of hand

Corynebacterium senegalense strain Marseille-P4329^T (= CSURP4329) and Arthrobacter senegalensis strain Marseille-P4329^T (= CSURP4198) are new species first isolated from human skin. A culturomics approach and taxonogenomics methods were used for these new bacterial species.

Lysinibacillus timonensis sp. nov., Microbacterium timonense sp. nov., and Erwinia mediterraneensis sp. nov., three new species isolated from the human skin

Lysinibacillus timonensis strain Marseille-P5727^T (=CSURP5727), Microbacterium timonense strain Marseille-P5731^T (=CSURP5731) and Erwinia mediterraneensis strain Marseille-P5165^T (=CSURP5165) are three new species isolated from the human skin.

'Citricoccus massiliensis' sp. nov., a new bacterial species isolated from human skin by culturomics

We report the main characteristics of 'Citricoccus massiliensis'strain Marseille-P4330, a new species within the genus Citricoccus. This strain was isolated from the skin of a healthy human man living in Dielmo, Senegal, Western Africa.

FUNGAL SYMBIONTS. Global assessment of arbuscular mycorrhizal fungus diversity reveals very low endemism

The global biogeography of microorganisms remains largely unknown, in contrast to the well-studied diversity patterns of macroorganisms. We used arbuscular mycorrhizal (AM) fungus DNA from 1014 plant-root samples collected worldwide to determine the global distribution of these plant symbionts. We found that AM fungal communities reflected local environmental conditions and the spatial distance between sites. However, despite AM fungi apparently possessing limited dispersal ability, we found 93% of taxa on multiple continents and 34% on all six continents surveyed. This contrasts with the high spatial turnover of other fungal taxa and with the endemism displayed by plants at the global scale. We suggest that the biogeography of AM fungi is driven by unexpectedly efficient dispersal, probably via both abiotic and biotic vectors, including humans.

[Primitive neuroectodermal tumor of the vagus nerve]

Primitive neuroectodermal tumors are a rare type of malignant neuroectodermal tumor that is very aggressive. Cervicofacial location is rare, even exceptional. We report a case of a 4-month-old male infant, referred from the pediatric clinic for severe supralaryngeal dyspnea, a firm mass under the left mandibular angle, mobile and extended to the parotid area, painful, with a curve of the left side wall of the oropharynx. Cervical computed tomodensitometry showed a well-limited mass in the carotid area, enhanced by the contrast product. A vascularized mass, which had developed at the expense of the vagus nerve, was removed surgically. Histology found a primitive neuroectodermal tumor.

[Correlations between colorimetric parameters of teeth, eyes and skin. Perspectives in the choice of tooth shade for complete denture]

Rehabilitation with complete denture include among other objectives, improvement of facial and dental esthetics. To these ends, the artificial teeth should mimic as far as possible, healthy and natural dentition. The main objective of this study was to investigate factors associated with tooth color among black African subjects. One hundred and two subjects (72 men and 30 women) were included in this investigation. The colorimetric parameters of their teeth as well as those of the conjunctiva of their eyes and skin were recorded from standardized photographs. Two software, Mesurim and Photoshop were used for that purpose. Univariate and linear regression analysis were run to assess the association between tooth color and the variables age, gender and colorimetric parameters of eyes and skin. It appears from the result of this study that tooth color was positively and significantly associated with age. Stepwise multiple regression analysis further revealed that tooth hue can be best predicted by a combination of skin complexion and brightness and eye lightness.

[Prosthetic rehabilitation: needs in Senegalese dental offices]

Knowledge of dental prosthetic needs will develop strategies for prevention and treatment through a package of individual, community and professional policies. The aim of this study was to evaluate prosthetic needs in Senegalese dental offices. The survey was conducted among people aged 15 years and more attending Senegalese dental clinics. The mean number of missing teeth was 4.4. Only 55.3% of the sample expressed the need for dentures and 81.8% had a diagnosed need for prosthesis. A statistically significant difference was noticed between the needs diagnosed and the expressed needs (p < 0.0001). Finally, this study reveals that the need for prosthetic treatment is real in the Senegalese dental offices.

[Prevalence of halitosis in patients with dental prostheses in Senegal]

INTRODUCTION

Bad breath is a disease affecting 25% of the world's population. Despite the widespread nature of this problem, people's knowledge about this condition is poor.

OBJECTIVE

The purpose of this study was to determine the prevalence of halitosis in a cohort of 62 Senegalese subjects with dental prostheses.

METHODS

Breath analysis was based on measurement of volatile sulfur compounds (VSC) using a halimeter. Halitosis was diagnosed ifVSC level was > or = 125 ppb.

RESULTS

Mean VSC level was 157.7 +/- 152.6 ppb. The prevalence of halitosis was of 35.4% overall, 72.7% in persons with fixed dentures and of 27.3% in persons with removable prostheses.

CONCLUSION

The relatively high prevalence of halitosis observed in this study indicates a need to enhance patient awareness of daily hygiene measures for dental prosthesis.

[Prevalence of fixed prosthesis-related periodontitis in Senegal]

The purpose of this study was to determine radiographically the prevalence of periapical periodontitis in teeth restored with crown in a Senegalese population. Full mouth periapical radiographs were obtained from 208 consecutive adult patients (6234 teeth) presenting as new patients to the Dental Service of the University. The presence of crown restorations, the periapical status and technical quality of root fillings associated were evaluated. 7.69% (n = 16) of patients had at least one tooth that was crowned. The total number of crowns assessed was 0.95% (n = 59). The molars were the teeth most crowned 40.67% (n = 24) followed by anterior teeth 30.50% (n = 18) and premolars 28.81% (n = 17). All the crowned teeth had previous root canal treatment of which only 16.94% (n = 10) were acceptable. 53 % (n = 32) of the teeth had apical periodontitis (PAI > 2). Unacceptable root fillings were associated with a higher prevalence of periapical disease (p < 0.05). Crown with a post extending more than 4 millimetres from the apex were associated with more periapical lesions 64.28% (p < 0.05). The results indicate a low prevalence of crowned teeth, an absence of vital preparation, a high prevalence of radiographic periapical disease and unacceptable root fillings associated.

[Relationships between masticatory performance and nutritional state in complete denture wearers]

For many authors masticatory dysfunctions are related to reduction in dietary intake with malnutrition as a possible consequence. The aim of the present study was to further investigate the relationships between masticatory performance and nutritional state in complete denture wearers.

METHOD

Masticatory performance was assessed using a granulometric method in 74 subjects divided into 2 subgroups according to their dental status (normal dentition and complete dental wearers). Nutritional status of study subjects was analyzed with Mini Nutritional Assessment (MNA).

RESULTS

There were a significant association between wearing denture and Nutritional Status as assessed by MNA. Using this scale, a risk of malnutrition was found in 80% of subjects wearing complete denture and in 26% in the normal dentition sub group (p < 0.0001). There were also a positive and significant correlation between, the particle size distribution and masticated test food and nutritional status.

CONCLUSION

Complete denture wearers are at greater risk of malnutrition than did subjects with normal dentition.

Gender-related factors influencing HIV serostatus disclosure in patients receiving HAART in West Africa

Disclosure of HIV serostatus remains an important tool for the prevention of new infections and early initiation of treatment for HIV-positive individuals' regular sexual partners. Our aim is to identify factors associated with disclosure to partner in patients taking antiretroviral treatment, with a gender- and sex-based approach. In this study conducted in Mali and Burkina Faso, men (154) and women (164) who reported being in a marital or cohabitating relationship were included. Sex-specific bivariate analyses and multivariate logistic regression were performed to identify determinants of disclosure. Disclosure to partner was 72.1% in men and 79.9% in women. Results of bivariate and multivariate analyses indicated that cohabiting with partner was strongly associated with disclosure in both men and women. In men only, older age, literacy and having good communication with the treating doctor were significantly associated with disclosure. Among women, disclosure was associated with having children and high self-reported importance of religion. Future research and interventions promoting disclosure should take into account these differences reflecting the social construction of gender roles in these settings.

[Study of mastication in denture wearers among various ages]

INTRODUCTION

Recent studies have shown that it was possible for subjects with masticatory deficiency chewing achieve a satisfactory level of fragmentation of food by acting on some physiological parameters as the number of cycles and the time devoted to a sequence of mastication.

METHOD

The objective of this work is to study the effects of the wearing of complete prostheses, of ageing on the physiological parameters from the chewing on a population of 110 subjects.

RESULTS

The results show an important effect of the dental status. Indeed denture weaers need twice more cycles than controls of the same age to make a ham portion ready to be swallowed. Significant an age effect with regard to the number of cycles was also noted. The rheology of food affects the number of cycles which increases with the hardness of food.

[Study of the characteristics of the food bolus in elderly subjects with complete dentures]

Many studies have shown that wearing of complete dentures impairs masticatory function. The aim of this study was to investigate the influence of complete denture wearing and ageing on masticatory performance. Masticatory performance was assessed by a granulometric method on 110 subjects divided into 3 groups according to dental state and age. The results show edentulous subjects have a masticatory performance worse than their congeneric of the same age. Indeed, the median of the distribution of the size of the particles is more important at the carriers of prostheses than at the toothed old subjects (P < 0.0001). On the other hand the extent of the distribution does not vary significantly between these 2 groups of subjects. The parameters of the masticatory performance do not vary in a statistically significant way between the old subjects and the young controls. There is thus no significant effect of the age on the parameters of the performance masticatory.

[Evaluation of rehabilitation needs by post-maxillectomy prosthesis in Senegal]

The surgical treatment of the jawbone tumors often ends up with an communication between the mouth and the sinus, embarrassy for the function and carrying severe esthetical damages. This work aims to evaluate the needs in filling mouth and fixe treating prosthesis in the management of malignant tumors at the Dantec University hospital. A case study of maxillary jawbone cancers observed in the ORL and the stomatology services allowed us to observe on a ten years period, 91 cases of maxillary cancers, from which (29 or 31.86%) have been surgically treated and only 3 patients (3.29%) got a full mouth and face filling prosthesis. Those patients averaged 50 years old, but we have registered some younger patients and women who, having missed oral rehabilitation, are really handicapped. In Senegal the care of people suffering from jawbone cancers must include a surgical section as well as a radiotherapeutic one, in order to involve all the cases, and a filling mouth-and-face rehabilitation prosthesis.

[Clinical evaluation of the occlusion of young Senegalese]

The dental occlusion is a basic phase of mastication moreover it is an everlasting concern for the dentist during therapeutic and prevention of dento-maxillo-facial disorders. Senegal is a country of recent dental practice and dental problems are frequent in it. We led this clinical assessment of occlusion on a sample of 30 young Senegalese people aged 18 to 35 years and we tried to evaluate the consequential effects on teeth and periodontal tissues with intent to use this study as pattern of prevalence evaluation of occlusion disorders. Taken at random in the consultation at the Institute of Odontology and Stomatology, these people have been selected by excluding any obvious cause of occlusal disorders. 76.67% of our sample are students and the average patient of the study is à 24 years man, wolof, student dwelling in Dakar. He has an avoid face, is in normocclusion or prognathia and presents a tooth affection which can be related to malocclusion and defective hygiene. 67% of examined teeth are in contact during maximal occlusion and 33% are in entire lack of posterior contact during protrusion meanwhile 73 to 80% present group function. In 70% of studied cases, the superficial periodontium is affected and 30% representing the deep periodontium, are quite safe. This word is a first attempt of prevalence evaluation. It has to be led in multicentric study and at a larger scale in order to have more exact sight of young Senegalese occlusal disorders.