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Search Results: 1 - 10 of 74 matches for " Najat Mahassini "
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Large Adrenal Pseudocyst: A Case Report  [PDF]
Mohamed Amine Azami, Othman Lahbali, Iliass El Alami, El Amine Ratbi, Fouad Zouidia, Najat Mahassini
Surgical Science (SS) , 2017, DOI: 10.4236/ss.2017.85023
Abstract: Introduction: Cysts of the adrenal gland are rare and are usually discovered incidentally, typically presented with abdominal pain or palpable mass. There are four categories of adrenal gland cyst: epithelial, endothelial, parasitic and pseudocysts. We report the case of a 33-year-old woman who presented as a pain of the right hypochondrium and abdominal distention and was diagnosed with a large unilateral adrenal pseudocyst. Case presentation: A 33-year-old Moroccan woman followed for acute articular rheumatism for 3 years was admitted with left hypochondralgia and abdominal distention. Magnetic resonance imaging. (MRI) and abdominal computed tomography revealed a large left adrenal cyst mass measuring 19 cm. The patient underwent surgery, and the cyst was completely removed. Histological examination revealed an adrenal pseudocyst. Symptoms resolved after pseudocyst removal. Conclusion: Adrenal pseudocysts are uncommon. Symptoms are usually related to the size and local pressure effect of the cysts.
A gallbladder tumor revealing metastatic clear cell renal carcinoma: report of case and review of literature
Merieme Ghaouti, Kaoutar Znati, Ahmed Jahid, Fouad Zouaidia, Zakiya Bernoussi, Youssef El Fakir, Najat Mahassini
Diagnostic Pathology , 2013, DOI: 10.1186/1746-1596-8-4
Abstract: The virtual slides’ for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/8956897238238989 webciteMetastatic tumors to the gallbladder are uncommon. The most common metastatic tumors to the gallbladder are metastatic melanomas and metastatic carcinomas from stomach, pancreas, ovary, bile ducts, colon and breast [1]. Metastatic renal cell carcinoma in the gallbladder is extremely rare, with reported frequencies of less than 0.6% in large autopsy reviews [2]. Renal cell carcinoma is a rare tumor accounting for 3% of all malignancies in adults and 85% of primary renal tumors. However, this tumor has a great propensity for metastasizing synchronously or metachronously to various anatomic sites [3]. We report a case of intraluminal polypoid metastasis of clear cell renal cell carcinoma in gallbladder mimicking gallbladder polyp and revealing the renal carcinoma and reviewed the reported 40 cases. The clinico-pathologic features and differential diagnosis are discussed.A 55-year-old woman presented with severe right hypochondrium pain, with weight loss and alteration of her general condition, lasting for 6 months. She showed no urological signs, especially no hematuria, no pain, and no flank mass. She had no past history in particular. Neither physical examination nor laboratory examination revealed any significant findings. Abdominal ultrasonography showed a 2.6 cm diameter intraluminal polypoid hyperechoic mass in the gallbladder. Color Doppler ultrasonography examination demonstrated vessels in the mid-portion of the mass. Computed tomography scan confirmed the presence of a gallbladder tumor that appeared as an enhancing pedunculated tumor within the gallbladder, without thickening of the gallbladder wall. The tumor seemed to be attached to the edge of the liver with no macroscopic extension to the liver parenchyma (Figure 1). Furthermore, TDM scan showed a cortical fleshy nodule of the right kidney, measuring 2.2 cm, with no involvement of
Calcified multilocular thymic cyst associated with thymoma: a case report
Hafsa Elouazzani, Fouad Zouaidia, Ahmed Jahid, Laila Laraqui, Zakiya Bernoussi, Najat Mahassini
Journal of Medical Case Reports , 2011, DOI: 10.1186/1752-1947-5-225
Abstract: A 50-year-old Berber woman from Morocco was admitted with a chronic cough of more than 10 years duration. Her medical history and physical examination were normal. Anterior chest radiography demonstrated a calcified opacity in her right anterior mediastinum. A chest-computed tomogram revealed a round cystic tumor, with significant calcification in her right anterior mediastinum. A surgical exploration was performed. The tumor seemed to be a well-encapsulated and totally calcified lesion, arising from the right lobe of her thymus. It was removed by partial resection of her thymus. Through histology, the calcified tumor exhibited some areas of multilocular fibrous-wall cysts. These cysts were partially lined by small cuboidal cells with severe chronic inflammation and an AB thymoma that arose from the wall of the cyst.Greater attention should be given to multilocular thymic cysts, to exclude the possibility of neoplasm, especially when the cyst wall is thickened.Multilocular thymic cysts are uncommon lesions of the anterior mediastinum. On a regular histopathology examination, they show significant inflammation and fibrosis that can be associated with thymic neoplasm such as thymoma or thymic carcinoma. It is worth noting that an association between thymoma and multilocular thymic cysts has hardly ever been observed. However, the possibility of other cystic thymic lesions, essentially cystic degeneration of thymoma, must always be considered [1].We report an unusual AB thymoma case of a 50-year-old woman in the wall of a calcified multilocular thymic cyst. Our study suggests that difficulties related to the diagnosis have been noted, and we advise that special attention be given to every anterior mediastinal cystic lesion.A 50-year-old Moroccan Berber woman was admitted with a chronic cough that has been going on for more than 10 years, without history of smoking or neoplasm. On admission, her physical examination and routine biochemical tests were within normal limit
Spontaneous rupture of a recurrent hepatic cystadenoma
Hakim Elfadili, Anass Majbar, Fouad Zouaidia, Naoufal Elamrani, Farid Sabbah, Mohamed Raiss, Najat Mahassini, Abdelmalek Hrora, Mohamed Ahallat
World Journal of Hepatology , 2010,
Abstract: Biliary cystadenoma is a rare cystic tumor of the middle aged woman that usually arises in the liver or occasionally in the extrahepatic bile ducts. It has a strong potential for recurrence and for malignant transformation. The lack of specific clinical and biological features hinders diagnosis before surgery. The spontaneous rupture of a hepatobiliary cystadnoma is a very rare and potentially life-threatening complication, with only two reported cases in the English literature. We report a case with spontaneous rupture of a recurrent hepatobiliary cystadenoma in a 32 year-old woman.
On Commutativity of Semiprime Right Goldie Ck-Rings  [PDF]
Najat M. Muthana, S. Khalid Nauman
Advances in Pure Mathematics (APM) , 2012, DOI: 10.4236/apm.2012.24031
Abstract: This short exposition is about some commutativity conditions on a semiprime right Goldie Ck-ring. In particular, it is observed here that a semiprime right Goldie Ck-ring with symmetric quotient is commutative. The statement holds if the symmetric ring is replaced by reduced, 2-primal, left duo, right duo, abelian, NI, NCI, IFP, or Armendariz ring.
Assessment of heavy metal contamination in vegetables consumed in Zanzibars  [PDF]
Najat K. Mohammed, Fatma O. Khamis
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.48078
Abstract: Samples of amaranth and cabbage from Zanzibar were analyzed for heavy metal concentrations using Energy Dispersive X-ray Fluorescence spectrometry (EDXRF) of Tanzania Atomic Energy Commission (TAEC) in Arusha. Thirty samples of amaranth and twenty five samples of cabbage were collected from four farms and two markets at Urban West Region in Zanzibar. The concentrations of Al, Cl, Cr, Mn, Fe, Ni, Zn, Cu, Ag, I, Br, Cd and Pb are presented and discussed. Amaranth had significant (P < 0.05) higher concentrations of Zn, Fe, Cr and Mn than cabbage, whilst Cd, Ni and Pb were significantly (P < 0.05) higher in cabbage than amaranth. Although the mean concentrations of the essential elements were in the range reported in literature, Pb and Cd were in concentrations above FAO/ WHO maximum tolerable limits.
On the Injective Equitable Domination of Graphs  [PDF]
Ahmad N. Alkenani, Hanaa Alashwali, Najat Muthana
Applied Mathematics (AM) , 2016, DOI: 10.4236/am.2016.717169
Abstract: A dominating set D in a graph G is called an injective equitable dominating set (Inj-equitable dominating set) if for every \"\", there exists \"\"such that u is adjacent to v and \"\". The minimum cardinality of such a dominating set is denoted by \"\"and is called the Inj-equitable domination number of G. In this paper, we introduce the injective equitable domination of a graph and study its relation with other domination parameters. The minimal injective equitable dominating set, the injective equitable independence number \"\", and the injective equitable domatic number \"\"are defined.
NC-Rings and Some Commutativity Conditions  [PDF]
S. Khalid Nauman, Najat M. Muthana
Advances in Pure Mathematics (APM) , 2019, DOI: 10.4236/apm.2019.92008
Abstract: Sum of two nilpotent elements in a ring may not be nilpotent in general, but for commutative rings this sum is nilpotent. In between commutative and non-commutative rings there are several types of rings in which this property holds. For instance, reduced, NI, AI (or IFP), 2-primal, reversible and symmetric, etc. We may term these types of rings as nearby commutative rings (in short NC-rings). In this work we have studied properties and various characterizations of such rings as well as rngs. As applications, we have investigated some commutativity conditions by involving semi-projective-Morita-contexts and right Ck-Goldie rings.
Elemental Contents in Hair of Children from Two Regions in Dar Es Salaam
Najat K. Mohammed
International Journal of Analytical Chemistry , 2012, DOI: 10.1155/2012/495043
Abstract: The work presented in this paper is part of the study which aims at determining the levels of elements in hair of children in Tanzania as a bioindicator of their nutrition and health. In this paper, the levels of trace elements in hair from children living in Dar es Salaam have been analysed. The analysis was carried out by long and short irradiation INAA at the reactor centre of the Institute of Nuclear Physics, Rez Czech Republic. 22 samples were collected from children living at Kiwalani about 12 km from Dar es Salaam city and 16 samples from children living at Mlimani, the main campus of University of Dar es Salaam. A total of 34 elements were found in the hair of the children. There were no big differences between the concentration levels of the essential elements in hair samples collected from the children which might indicate the same food consumption habits. 1. Introduction Trace element concentrations in human body are normally determined by the analysis of blood, serum, plasma, urine, or hair. Hair has an advantage over blood and urine as it accumulates elements in higher concentrations [1] and its collection is fast, painless, and easy [2]. Further more, the analysis of hair gives long-term information on the behaviour of the elements in the body (up to 2-3 years depending on length of hair) in contrast to blood and urine which provide short-term information [3]. Hair is also a stable biological material, which can easily be stored at room temperature for a long time without a change in its composition. A number of researchers have used hair samples to assess the nutritional and environmental exposure to humans. Othman and Spyrou (1980) reported increased levels of mercury (Hg) in hair samples collected from female adults and children in the Machakos district in Kenya, which are associated with the use of Hg compounds as cosmetics and for lightening the colour of the skin [4]. Airey [5], analysed human hair samples for Hg in relation to fish consumption. The results showed a direct relationship between mean hair Hg and the rate of fish consumption and hence to the diet of the society. Ikingura et al. (1996) reported concentrations of Hg in hair samples which were consistent to the concentration levels found in fish consumed by people living in the Lake Victoria goldfields in Tanzania [6]. Fordyce et al. (2000), reported a clear link between dietary Se intake and its concentrations in hair [7]. Hair from children has also been used in several research projects to assess their health and nutritional status [8–12]. The effect of dietary factor,
Signs of oral dryness in relation to salivary flow rate, pH, buffering capacity and dry mouth complaints
Najat MA Farsi
BMC Oral Health , 2007, DOI: 10.1186/1472-6831-7-15
Abstract: 312 unmedicated healthy individuals belonging to three age groups, (6–11, 12–17, and 18–40 years) were examined clinically for signs of oral dryness. Resting and stimulated saliva were collected to determine flow rate, pH and buffering capacity. A questionnaire was used to obtain information on subjective sensation of dry mouth.Dry lip and dry mucosa were present in 37.5% and 3.2% of the sample respectively. The proportion of subjects who complained of oral dryness (19%) showed a stimulated salivary flow rate significantly lower than non complainers. Dry lip was significantly related to low resting flow rate but pH and buffering capacity did not show any significant relation to dry lip. Dry mucosa was not related to any of the above mentioned parameters.The finding that the stimulated salivary flow rate was reduced in subjects complaining of dry mouth is of great clinical relevance, since the reduction is expected to be reflected in compromising various salivary functions.In healthy individuals the oral tissues are constantly bathed with saliva. The constant flow of saliva eliminates food debris and bacteria by swallowing. When stimulated by chewing or by moderate strength citric acid, the whole saliva flow rate increases from the resting value of around 0.3–0.65 ml/min to around 1.5–6.0 ml/min [1,2] with great individual variations.Saliva has an important role in oral health by providing immunological protection, and its role as a reservoir of ions which aid remineralization of the calcified tissues [3]. The secretions of salivary glands are important for protecting the mucosa from feeling dry and according to Naito et al this oral dryness is contributing to reduce health related quality of life [4]. The perception of oral dryness (xerostomia) was found to be related to the rate of secretion of minor palatal glands [5,6]. The feeling of dryness was evident when the rate of that secretion was below 3 μL/cm3/min [7]. This suggests that the sensation of a dry mouth is
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