Browsing by Author "Obajimi, M.O."
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Item Computed tomographic patterns of intracranial infarcts in Ghanaians.(2002) Obajimi, M.O.; Nyame, P.K.; Jumah, K.B.; Wiredu, E.K.Computed tomography has given a boost to intracranial imaging in general, and the diagnosis of the subtypes of Cerebrovascular Accident (CVA) in particular. In this study of 1,172 cases of CVA examined by Computed Tomography (CT), 552 (47.10%) showed features of cerebral infarction. There was a male prevalence in the study and the mean age was 59.8 years. As in all infarcts the diagnostic appearance was a wedge shaped hypodensity within the brain parenchyma. This was most often found in the parietal lobe (73.6%) and was always without a mass effect. Even though solitary infarcts were frequent, multiple lesions were reported in 9.3% of cases and these group of respondents presented mostly with seizures. Diabetes mellitus was an important predisposing factor and was found in 163% of cases, while hypertension was found in only 9.1% of cases studied. Other CT findings were cerebral and cerebrellar atrophy. Calcification of the falx and the basal ganglia were also noted.Item CT evaluation of intracranial subdural haematoma: an Accra experience.(African journal of medicine and medical sciences, 2002-12) Obajimi, M.O.; Jumah, K.B.; Iddrisu, M.This is a descriptive analysis of the Computed Tomographic (CT) findings in 50 cases of intracranial subdural haematoma in Accra. The majority of patients were adults, though no age group was immune. The frequent aetiological factor in the series was trauma. Other remote causes such as meningitis and sickle cell disease were reported. The male to female ratio was 2.6:1, while the mean age was 32.4 years. Subdural Haematoma (SDH) was classified into various subtypes by their CT densities. The commonest type, the hyperdense or acute haematoma was reported in 56% of the patients. CT features noted in the series, include ventricular alteration, seen in 31 (62%) and were more often noted in the acute and isodense bleeds. Ipsilateral effacement of cerebral sulci was observed in only 10% of cases. Concave haematoma borders were reported in 76%. SDH were more often found on the left aspect of the cranium (52%), particularly in the frontal and pariental lobes. Evacuated surgery was done in only 9 of the series, where haematoma was demonstrated in more than 3 tomographic slices. Flake-like calcifications were found in three cases of long standing haematoma. Against the above background CT can be described as an appropriate diagnostic tool in clinical evaluation of SDH.Item Spontaneous intracranial haemorrhage: Computed tomographic patterns in Accra.(2002) Obajimi, M.O.; Nyame, P.K.; Jumah, K.B.; Wiredu, E.K.The diagnosis of stroke and the ability to distinguish the subtypes is central in the management of patients. This CT study has confirmed an increased prevalence of stroke (CVA) among Ghanaians. It has also reaffirmed a relatively higher incidence (52.9%) of spontaneous intracranial haemorrhage over cerebral infarcts among the 1,172 stroke patients studied. The study points to a male preponderance and a mean age of 55.7 years. Parenchymal haemorrhage was found to be the commonest variety of these haemorrhages. It occurred in 83.6% of cases while primary subarachnoid haemorrhage was reported in only 8.1% of cases. Ventricular extension of the parenchymal haemorrhage was reported in 22.7% of cases. The latter were mostly unilateral and on the left side especially in the parietal lobe (70.9%), subdural haemorrhage like the parenchymal variety was also reported to be more on the left, mainly unilateral and acute. Haemorrhages in the cerebellum and pons which are normally difficult to diagnose were also outlined with ease in the CT images. Other CT findings in these patients include parilesional oedema and mass effect found in 87.10% and 77.4% respectively.Item Women with painful breasts without palpable masses: Do they really need a mammogram?(African Journal of Medicine and Medical Sciences, 2003) Jumah, K.B.; Obajimi, M.O.; Darko, R.This prospective study was carried out over a period of 36 months, and the study population was, all the women (726) referred for mammograms on account of painful breast(s) without palpable masses. They were matched with the same number of asymptomatic women in a control group. The mammographic findings in the women with painful breast(s) and no palpable masses were normal in 639 (88%), benign in 80 (11%), suspicious in 2 (0.3%) and malignant in 5 (0.7%). In the control group mammograms showed normal breasts in 625 (86.1%), benign and suspicious lesions in 87 (12%) and 7 (1.0%) respectively. Malignant lesions were recorded in 7 (0.9%) women. The prevalence of breast cancer was similar in women with painful breast(s) and the control asymptomatic cases. Our reports show that inspite of the pain experienced by the women in this study mammography had a low diagnostic yield of malignant lesions, just as it was found in the control group. Mammography therefore, in these patients will only provide reassurance.