Onyambu, CK.  Submitted.  The pattern of chest radiographic findings in immunocompromised patients at the Kenyatta national hospital. Abstract

The pattern of chest radiograph findings were studied in 280 HIV positive individuals.
These were compared to 40 HIV negative patients who acted as controls. The
commonest disease seen was pneumonia 94 (33.9%), followed by pulmonary
tuberculosis 89 (3l.7%). Mixed infections were seen in 34 (12.2%) cases while PCP
occurred in 16(5.6%) cases. The pneumonia seen was more of bronchopneumonia than
lobar pneumonia in-patients with HIV (33.9) than HIV negative patients (23%).
The cases of pulmonary tuberculosis seen showed less upper lobe distribution than in
HIV negative patients. Most of the cases showed mid and lower zone distribution.
There are less cavitations than HIV negative patients. Also more cases with hilar and
mediastinal nodes were seen. There were 34 (12.2%) cases of mixed infection, which
constituted of 3 (1.1 %) cases of non-Hodgkin's lymphoma. These mainly presented
with hilar and mediastinal nodes. The clinical differentiating features were KS skin
nodules in-patients with pulmonary K.S.


Muthami, KM, Onyambu CK, Odhiambo AO, Muriithi IM, Byakika TK.  2014.   Correlation of magnetic resonance imaging findings with arthroscopy in the evaluation of rotator cuff pathology.. East African Orthopaedic Journal. 8(2):52-59.
Rodriguez, JC, Onyambu CK, Aywak AA.  2014.  JC, R, CK O, AA A. 2014. A Rare Case of Crossed Renal Ectopia without Fusion. East and Central African Journal of Surgery. 19(3):112-115.AJO. East and Central African Journal of Surgery. 19(3):112-115.
Ndii, MK, Kimani NM, Onyambu CK.  2014.  Utility of routine chest radiography in Kenya. East African Medical Journal. 91(7):216-218.
Onyambu, CK, Mugambi LM.  2014.  The pattern of MRI findings in patients with shoulder pain at three Imaging Centres in Nairobi . East African Orthopaedic Journal. 8(1):10-15.


Onyambu, CK, Amayo EO, Ktonyi JM.  2013.  Clinical features and patterns of imaging findings in patients with cerebral Venous sinus thrombosis. East African Medical Journal. 90(10):181-188.


Dr Onyambu C.K, DWMN.  2012.  PATTERN OF INTERSTITIAL LUNG DISEASE AS SEEN BY HIGH RESOLUTION. East African Medical Journal. 89(9):285-293.
Dr Onyambu C.K, Dr Mzumara S.S, DKNM.  2012.  EVALUATING CHAMBERLAIN’S, McGREGOR’S, AND McRAE’S SKULL-BASE. East African Medical Journal. 89(8):272-277.



ONYAMBU, DRKWAMBOKACALLEN, MATHENGE DRMURIITHIIAN.  2010.  Onyambu CK, Muriithi IM, Ngare SM. Cerebral Venous Sinus Thrombosis: A Report of Two Cases. EAMJ.2010;87:220-224.. EAST AFRICAN MEDICAL JOURNAL. 87(5):220-224.: EAMJ AbstractWebsite

Cerebral venous sinus thrombosis is an uncommon yet potentially life threatening condition which is often under-diagnosed or misdiagnosed because of the variability of the clinical signs and symptoms. The imaging findings are often subtle thus the need for a high index of suspicion. The superior sagittal and transverse sinuses are the most frequently involved. The correct diagnosis of cerebral venous thrombosis relies on neuroimaging studies. The two cases reported highlight the fact that the radiologist may be the first clinician to suspect and diagnose this condition. This ultimately affects prognosis as early diagnosis and treatment reduces morbidity and mortality.

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