Sternal mass caused by Mycobacterium tuberculosis in an immunocompetent young adult

2021 ◽  
Author(s):  
Mickael Tordjman ◽  
Clara Pouchelon ◽  
Etienne Canouï ◽  
Manel Omri ◽  
Elisabeth Dion
Keyword(s):  
Differential Diagnosis ◽  
Mycobacterium Tuberculosis ◽  
Young Adult ◽  
Ct Scan ◽  
Imaging Characteristics ◽  
Tuberculous Abscess

Highlight Differential diagnosis of sternal masses in migrant patients should include tuberculosis. Imaging characteristics on CT-scan and MRI are of great interest. Sternal tuberculous abscess exhibits a slightly hyperintense rim on T1-weighted precontrast images that can be associated with osteomyelitis of the sternum.

COVID-19: how nuclear medicine can provide a differential diagnosis in very dubious case

Coronaviruses ◽  
2020 ◽  
Vol 01 ◽  
Author(s):  
Maria Silvia De Feo ◽  
Viviana Frantellizzi ◽  
Giuseppe De Vincentis
Keyword(s):  
Infectious Disease ◽  
Differential Diagnosis ◽  
Ct Scan ◽  
Imaging Technique ◽  
False Negative ◽  
Clinical Signs ◽  
Negative Results ◽  
Infectious Disease Department ◽  
False Negative Results ◽  
99Mtc Hmpao

Background: We present the case of a 55-year-old woman, admitted to the Infectious Disease Department of Policlinico Umberto I, Rome, in mid-March 2020, with suspicion of COVID-19 infection. Objective: The rRT-PCR was negative and the following CT scan, performed to exclude false-negative results and help diagnosis, was inconclusive. Methods: It was decided to submit the patient to 99mTc-HMPAO-labelled leukocyte scan. Results: This exam led to the diagnosis of infective endocarditis. Conclusion: In the present pandemic scenario, 99mTc-HMPAO-labelled leukocyte scan represents a reliable imaging technique for differential diagnosis with COVID-19 in patients with confusing clinical signs, possible false-negative rRT-PCR results and inconclusive CT scan.

CT scan in the differential diagnosis of thickened optic nerve

Orbit ◽  
1986 ◽  
Vol 5 (4) ◽  
pp. 255-258 ◽  
Author(s):  
G. Uccello ◽  
P. Fedriga ◽  
F. Tranfa ◽  
P. Vassallo ◽  
G. Bonavolonta
Keyword(s):  
Differential Diagnosis ◽  
Optic Nerve ◽  
Ct Scan

scholarly journals Growing up different in Neolithic China: A contextualised case study and differential diagnosis of a young adult with skeletal dysplasia

2020 ◽  
Vol 28 ◽  
pp. 6-19 ◽  
Author(s):  
Siân E. Halcrow ◽  
Melanie J. Miller ◽  
Anne Marie E. Snoddy ◽  
Wenquan Fan ◽  
Kate Pechenkina
Keyword(s):  
Differential Diagnosis ◽  
Young Adult ◽  
Skeletal Dysplasia ◽  
Growing Up

scholarly journals The role of lumbar puncture in the diagnosis of subarachnoid hemorrhage when computed tomography is unavailable

CJEM ◽  
2002 ◽  
Vol 4 (02) ◽  
pp. 102-105 ◽  
Author(s):  
David Mann
Keyword(s):  
Computed Tomography ◽  
Differential Diagnosis ◽  
Subarachnoid Hemorrhage ◽  
Ct Scan ◽  
Lumbar Puncture ◽  
Uncommon Condition ◽  
Noncontrast Computed Tomography ◽  
Acute Headache ◽  
Interpretation Of Results

ABSTRACTSubarachnoid hemorrhage (SAH) is an important but uncommon condition in the differential diagnosis of acute headache. Most authorities recommend that patients with suspected SAH undergo noncontrast computed tomography (CT) as a first diagnostic intervention. If the results of the CT scan are negative, a lumbar puncture should be performed. Many nonurban Canadian hospitals do not have CT scanners and must either transfer patients or consider performing lumbar puncture prior to CT. In selected patients, performing lumbar puncture first may be an option, but timing of the procedure and the interpretation of results is important.

scholarly journals Imaging of Central Nervous System Tuberculosis

2017 ◽  
Vol 2 (2) ◽  
pp. 84-90
Author(s):  
Anggraini Dwi Sensusiati
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Mycobacterium Tuberculosis ◽  
Lymph Node ◽  
Ct Scan ◽  
Spinal Tuberculosis ◽  
Bacterial Disease ◽  
Pulmonary Tb ◽  
Intracranial Tuberculoma ◽  
Extra Pulmonary

Tuberculosis, or TB, is an infectious bacterial disease caused by Mycobacterium tuberculosis. TB can occur in pulmonary or extra pulmonary. Extra pulmonary TB occurs in locations other than the lung, such as larynx, lymph node, pleura, brain, kidneys and bones. CT Scan can detect intracranial tuberculoma, and MRI is the best method to detect the abnormality in spinal tuberculosis.

scholarly journals Diagnostic value of magnetic resonance imaging in the analysis of ameloblastoma: report of two cases

2019 ◽  
Vol 22 (3) ◽  
pp. 425-431
Author(s):  
Neiandro Santos Galvão ◽  
Antonione Santos Bezerra Pinto ◽  
Alan Leandro Carvalho Farias ◽  
André Luiz Ferreira Costa ◽  
Sérgio Lúcio Pereira de Castro Lopes ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Diagnostic Value ◽  
Resonance Imaging ◽  
Intermediate Signal Intensity ◽  
Additional Information ◽  
Imaging Characteristics ◽  
Magnetic Resonance Imaging Mri

Ameloblastoma is an odontogenic tumor that shares clinical and imaging characteristics with other lesions of the jaws, such as odontogenic keratocyst, which makes the diagnosis difficult. However, in addition to radiographic and tomographic examinations, Magnetic Resonance Imaging (MRI) has been increasingly used, contributing with relevant additional information about the differentiation between solid and liquid components of the lesion. This case report was conducted to present two variations of ameloblastoma and discuss the radiographic, tomographic and MRI contribution in the differential diagnosis between ameloblastoma and odontogenic keratocyst.The signal intensity in T1-weighted MRI revealed internal fluid content in both cases, which was important in the differential diagnosis with other intraosseous lesions such as odontogenic keratocysts. This is probably due to the presence of keratin that increases the viscosity of the content and also for an intermediate signal intensity signal in T2-weighted MRI. Therefore, MRI revealed important internal characteristics of the reported lesions, which was very useful in the establishment of the differential diagnosis with other lesions.

scholarly journals Differential diagnosis for suspected cases of coronavirus disease 2019: a retrospective study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Qiong Chi ◽  
Xinjian Dai ◽  
Xiangao Jiang ◽  
Lefei Zhu ◽  
Junyan Du ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Nucleic Acid ◽  
Multiplex Pcr ◽  
Influenza B ◽  
Nucleic Acid Testing ◽  
Negative Group ◽  
Positive Group ◽  
Imaging Characteristics ◽  
Imaging Results ◽  
Wbc Count

Abstract Background Since December 2019, the coronavirus disease 2019 (COVID-19) has infected more than 12,322,000 people and killed over 556,000 people worldwide. However, Differential diagnosis remains difficult for suspected cases of COVID-19 and need to be improved to reduce misdiagnosis. Methods Sixty-eight cases of suspected COVID-19 treated in Wenzhou Central Hospital from January 21 to February 20, 2020 were divided into confirmed and COVID-19-negative groups based on the results of real-time reverse transcriptase polymerase chain reaction (RT-PCR) nucleic acid testing of the novel coronavirus in throat swab specimens to compare the clinical symptoms and laboratory and imaging results between the groups. Results Among suspected patients, 17 were confirmed to COVID-19-positive group and 51 were distinguished to COVID-19-negative group. Patients with reduced white blood cell (WBC) count were more common in the COVID-19-positive group than in the COVID-19-negative group (29.4% vs 3.9%, P = 0.003). Subsequently, correlation analysis indicated that there was a significant inverse correlation existed between WBC count and temperature in the COVID-19-positive patients (r = − 0.587, P = 0.003), instead of the COVID-19-negative group. But reduced lymphocyte count was no different between the two groups (47.1% vs 25.5%, P = 0.096). More common chest imaging characteristics of the confirmed COVID-19 cases by high-resolution computed tomography (HRCT) included ground-glass opacities (GGOs), multiple patchy shadows, and consolidation with bilateral involvement than COVID-19-negative group (82.4% vs 31.4%, P = 0.0002; 41.2% vs 17.6% vs P = 0.048; 76.5% vs 43.1%, P = 0.017; respectively). The rate of clustered infection was higher in COVID-19-positive group than COVID-19-negative group (64.7% vs 7.8%, P = 0.001). Through multiplex PCR nucleic acid testing, 2 cases of influenza A, 3 cases of influenza B, 2 cases of adenovirus, 2 cases of Chlamydia pneumonia, and 7 cases of Mycoplasma pneumoniae were diagnosed in the COVID-19-negative group. Conclusions WBC count inversely correlated with the severity of fever, GGOs, multiple patchy shadows, and consolidation in chest HRCT and clustered infection are common but not specific features in the confirmed COVID-19 group. Multiplex PCR nucleic acid testing helped differential diagnosis for suspected COVID-19 cases.

scholarly journals Heterogeneity analysis of triphasic CT scan perfusion parameters in differential diagnosis of hepatocellular carcinoma and hemangioma

Medicine ◽  
2018 ◽  
Vol 97 (38) ◽  
pp. e12512
Author(s):  
Guodong Pang ◽  
Zuyun Duan ◽  
Chunchun Shao ◽  
Fang Zhao ◽  
Hai Zhong ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Differential Diagnosis ◽  
Ct Scan ◽  
Heterogeneity Analysis ◽  
Triphasic Ct

scholarly journals CT-Guided Pancreatic Percutaneous Fine-Needle Biopsy in Differential Diagnosis between Pancreatic Cancer and Chronic Pancreatitis

HPB Surgery ◽  
1989 ◽  
Vol 1 (4) ◽  
pp. 309-317 ◽  
Author(s):  
Michele Carlucci ◽  
Alessandro Zerbi ◽  
Danilo Parolini ◽  
Sandro Sironi ◽  
Angelo Vanzulli ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Differential Diagnosis ◽  
Chronic Pancreatitis ◽  
Ct Scan ◽  
Needle Biopsy ◽  
Pancreatic Neoplasm ◽  
Abdominal Ultrasound ◽  
Fine Needle Biopsy ◽  
Ct Guided ◽  
Fine Needle

Differential diagnosis between pancreatic cancer and chronic pancreatitis is still difficult to establish. In 63 patients with suspected pancreatic neoplasm we performed: serum CA 19-9 assessment, abdominal ultrasound, CT scan and CT-guided pancreatic percutaneous fine-needle biopsy. The conclusive diagnosis was pancreatic cancer in 40 patients and chronic pancreatitis in 23 patients. With regard to the differential diagnosis, sensitivity and specificity were respectively 80% and 78% for serum CA 19-9, 75% and 65% for abdominal US, 85% and 70% for CT scan, 00% and 87% for percutaneous fine-needle biopsy. We conclude that CT-guided percutaneous fine-needle biopsy is the most reliable method for differential diagnosis between pancreatic cancer and chronic pancreatitis.

Sign in / Sign up

Export Citation Format

Share Document