Posttraumatic Retronychia of the Foot with Clinical and Ultrasound Correlation

2017 ◽  
Vol 107 (3) ◽  
pp. 253-256 ◽  
Author(s):  
Mariana Pizarro ◽  
Nicolás Pieressa ◽  
Ximena Wortsman
Keyword(s):  
Differential Diagnosis ◽  
Doppler Ultrasound ◽  
Imaging Technique ◽  
Color Doppler ◽  
Nail Plate ◽  
Color Doppler Ultrasound ◽  
Nail Bed ◽  
Long Time ◽  
History Of ◽  
Traumatic Origin

Retronychia, the posterior embedding of the nail bed into the proximal nail fold, can be a complex clinical dermatologic diagnosis that may mimic other inflammatory ungual diseases or tumors of the nail. It has been related to a history of severe systemic conditions that secondarily affect the nail matrix and is commonly associated with onychomadesis. We present a case of retronychia of the foot with a purely traumatic origin, nonconcomitant with onychomadesis, that was diagnosed by color Doppler ultrasound in a long-time practitioner of martial arts who was otherwise healthy. Color Doppler ultrasound is an excellent imaging technique for supporting the diagnosis of retronychia. It provides information on the exact location and morphology of the nail plate as well as the presence of inflammatory signs in the ungual and proximal periungual regions. Additionally, this imaging technique can support the differential diagnosis with other nail conditions. Since there are many sports or activities that can potentially injure the toenails, retronychia may be an underestimated entity and the present case can raise the awareness of this condition and show the usefulness of color Doppler ultrasound.

scholarly journals Renal Allograft Torsion: US and CT Imaging Findings of a Rare Posttransplant Complication

2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Rohit Dewan ◽  
Anil K. Dasyam ◽  
Henke Tan ◽  
Alessandro Furlan
Keyword(s):  
Doppler Ultrasound ◽  
Renal Allograft ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Imaging Findings ◽  
Unenhanced Ct ◽  
Doppler Signals ◽  
History Of ◽  
Normal Blood Flow

Vascular torsion is a rare renal transplant complication which requires prompt diagnosis and surgery to salvage allograft function. We report here a case of renal allograft torsion with interesting imaging findings on unenhanced CT and color Doppler ultrasound. A 60-year-old woman with a history of pancreas and kidney transplant presented to the emergency room with nausea, vomiting, abdominal pain, and minimal urine output. Unenhanced CT of the abdomen demonstrated an enlarged and malrotated renal allograft with moderate hydronephrosis. Color Doppler ultrasound demonstrated lack of vascularity within the allograft. The patient was taken urgently to the operating room where the renal allograft was found twisted 360 degrees around the vascular pedicle. After the allograft was detorsed, the color of the kidney returned and the Doppler signals for arterial flow improved. Intraoperative biopsy showed no evidence of infarct or acute cellular rejection. The detorsed kidney was surgically fixed in position in its upper and lower poles. Follow-up ultrasound 1 day later demonstrated normal blood flow to the renal allograft and the serum level of creatinine returned to normal.

The role of high resolution pulsed and color Doppler ultrasound in the differential diagnosis of benign and malignant lymphadenopathy

Cancer ◽  
1999 ◽  
Vol 85 (11) ◽  
pp. 2485-2490 ◽  
Author(s):  
Francesco Dragoni ◽  
Claudio Cartoni ◽  
Edoardo Pescarmona ◽  
Flavia Chiarotti ◽  
Maria Puopolo ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
High Resolution ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Color Doppler Ultrasound

scholarly journals Brightness Mode and Color Doppler Ultrasound in Differential Diagnosis of Breast Lesions in Saudi Females

2019 ◽  
Vol 9 ◽  
pp. 36
Author(s):  
Hashim A. Hashim ◽  
Mustafa Z. Mahmoud ◽  
Batil Alonazi ◽  
Hassan Aldosary ◽  
Jameelah S. Alrashdi ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Data Collection ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Breast Lesions ◽  
Doppler Us ◽  
Malignant Breast ◽  
Color Doppler Us ◽  
Sensitivity Specificity

Objective: The aim of the study was to identify the pathological characteristics of benign and malignant breast lesions among Saudi females using brightness mode (B-mode) and color Doppler ultrasound (US). Materials and Methods: This study was retrospectively carried out in a single center in the Radiology and Medical Imaging Department, King Fahad Medical City, Riyadh, Saudi Arabia. A convenient method of sampling was used to include all patients referred for different diagnosis during the period of January 2016 and December 2018. A sample size of 100 cases was selected with 50% of the cases being benign breast lesions, while the rest were malignant. The data collection instruments comprised data collection sheets, while a Philips US system with a 9 MHz linear probe was used to give the differential results. The results were considered significant when P < 0.05. The statistical diagnostic test was used to detect sensitivity, specificity, and accuracy of US in the differential diagnosis of breast lesions in Saudi females. Results: B-mode and color Doppler US findings of breast mass measurements, shape, echotexture, and the presence and absence of vascularity present a sensitivity, specificity, and accuracy of 97.09%, 80.65%, and 93.28% in the diagnosis of benign and malignant breast masses. Conclusion: In Saudi females with dense breasts, the risk of breast cancer development is increased. Moreover, B-mode in combination with color Doppler US was highly determined the results of differential diagnosis for any breast lesions.

Color Doppler Ultrasound Guidance during Renal Angioplasty and Stenting

2003 ◽  
Vol 10 (2) ◽  
pp. 357-360
Author(s):  
Rosario Cianci ◽  
Alvaro Zaccaria ◽  
Silvia Lai ◽  
Giorgio Coen ◽  
Antonio Mander ◽  
...  
Keyword(s):  
Renal Insufficiency ◽  
Renal Artery ◽  
Doppler Ultrasound ◽  
Ultrasound Guidance ◽  
Imaging Technique ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Doppler Ultrasound Imaging ◽  
Combined Imaging ◽  
Angioplasty And Stenting

Purpose: To investigate whether an imaging technique combining color Doppler ultrasonography and selective renal artery digital subtraction angiography reduces contrast requirements in patients with progressive renal insufficiency undergoing renal artery angioplasty and stenting. Methods: Eight patients (5 men; mean age 58 years) with renal artery stenosis and renal insufficiency underwent percutaneous transluminal angioplasty and stenting under color Doppler ultrasound guidance. Results: Color Doppler ultrasound imaging yielded the information necessary for verifying catheter position, stent placement and expansion, and hemodynamics after revascularization. The combined imaging technique considerably reduced contrast requirements to only 10 mL in each case. No worsening of renal function was seen in any patient. Conclusions: The combined imaging procedure uses low doses of contrast agent and is especially suited to patients with renal dysfunction undergoing percutaneous renal revascularization.

scholarly journals Evaluation of Extracranial Carotid Arteries in Ischemic Stroke Patients Using Color Doppler Sonography and Correlation with Various Risk Factors

2019 ◽  
Vol 8 (2) ◽  
pp. 10-14
Author(s):  
Manish Raj Pathak ◽  
Mahesh Gautam ◽  
Yagya Raj Pathak
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Doppler Ultrasound ◽  
Carotid Arteries ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Radiology Department ◽  
Atheromatous Plaque ◽  
P Value ◽  
History Of

Background: Cerebral ischemic stroke is the major cause of death after ischemic heart disease and malignancies, among which major cases of stroke results from atherosclerosis of intra and extra-cranial carotid vessels. The aim of this study is to evaluate the extracranial carotid arteries in patients with ischemic stroke and correlation with various risk factors. Materials and Methods: A cross sectional study of the patients with ischemic stroke presented in Radiology department of Nobel Medical College were evaluated for a period of one year from February 2017- January 2018 using color Doppler ultrasound and correlated with various risk factors. A total of 50 patients were included in the study. All age groups and sex were included. Results: Out of 50 patients, 29 patients (58%) were males and 21 patients (42%) were females. Stroke was present in 24 patients on right side and 26 patients on left side. A total of 36 patients had extra-cranial carotid stenosis. Among them, 18 patients had <50% stenosis, 17 patients had >50% stenosis and 1 patient had complete occlusion. The most common cause of obstruction was found to be atherosclerotic changes in the form of atheromatous plaque. Out of 50 patients 27 had history of hypertension and 19 had history of smoking. Out of 27 hypertensive patients, 23 had stenosis which is statistically significant (p value 0.024).    Conclusion: The current study shows the importance of color Doppler ultrasound as an economic, safe and non-invasive method of demonstrating the cause of stroke in extra-cranial carotid artery system

scholarly journals Application value of color doppler ultrasound and ultrasound contrast in the differential diagnosis of ovarian tumor

2019 ◽  
Vol 36 (2) ◽  
Author(s):  
Haijing Zhang ◽  
Jinming Wang ◽  
Rui Guo
Keyword(s):  
Differential Diagnosis ◽  
Doppler Ultrasound ◽  
Ovarian Tumor ◽  
Malignant Tumors ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Ovarian Tumors ◽  
Pathological Examination ◽  
Ultrasound Contrast ◽  
Sensitivity Specificity

Objective: To study the value of color Doppler ultrasound and ultrasound contrast in differential diagnosis of ovarian tumors. Methods: Ninety-six patients with ovarian tumors who were treated in our hospital from May 2017 to July 2018 and confirmed by pathological examination were selected as the research subjects. All patients were examined by color Doppler ultrasound and ultrasound contrast. The sensitivity, specificity and accuracy of the two methods were compared, and the parameters of ultrasound contrast in the diagnosis of benign and malignant tumors were observed and compared. Results: The sensitivity, specificity and accuracy of ultrasound contrast in the diagnosis of ovarian tumors were higher than those of color Doppler ultrasound (P<0.05). There were significant differences in the time of initiation enhancement, time to peak and perfusion intensity in the diagnosis of benign and malignant lesions by ultrasound contrast (P<0.05). Conclusion: In the differential diagnosis of ovarian tumors, ultrasound contrast has more advantages than color Doppler ultrasound in displaying the blood perfusion information of tumors. It has high diagnostic accuracy and clinical application value. doi: https://doi.org/10.12669/pjms.36.2.847 How to cite this:Zhang H, Wang J, Guo R. Application Value of color doppler ultrasound and ultrasound contrast in the differential diagnosis of ovarian tumor. Pak J Med Sci. 2020;36(2):---------. doi: https://doi.org/10.12669/pjms.36.2.847 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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