ABSTRACT
Discoid meniscus is an uncommon dysplasia generally affecting the lateral meniscus. Its congenital or acquired origin remains a question of debate. We report 5 cases or lateral discoid meniscus in 4 girls and 1 boy, aged from 6 to 11 years. The main clinical signs were snapping knee and pain. The discoid meniscus appeared in MRI as an abnormally large meniscus extending into the joint space. It appeared as a central band giving increased signal in 3 out of 5 cases. The significance of this probably trauma-induced image was uncertain. Surgery confirmed MRI findings in 4 cases in which total resection of the meniscus was performed. No operation was performed in the fifth case.
Subject(s)
Magnetic Resonance Imaging , Menisci, Tibial/abnormalities , Arthralgia/etiology , Arthrography , Child , Cysts/diagnosis , Female , Humans , Joint Diseases/diagnosis , Joint Diseases/etiology , Knee Joint/pathology , Male , Menisci, Tibial/diagnostic imaging , Menisci, Tibial/pathology , Tibial Meniscus InjuriesABSTRACT
Ultrasound tomography imaging is a very effective diagnostic examination for lymphoma of the kidneys, organs which are frequently the site of these tumors (51,5% of cases). A total of 18 cases of renal lymphoma explored by ultrasound tomography over the last 2 years were reviewed, the first patients seen in this series also undergoing intravenous urography and two others a CT scan. In most cases diagnosis from ultrasound imaging was based on findings typical of renal lymphoma and on the almost constant detection of other parenchymatous localizations (liver, spleen, pancreas) or lymph node and/or serous lesions. Tumors were bilateral in 13 cases and unilateral in 5. Ultrasound images showed: a) nephromegaly that was usually bilateral (9 cases) or sometimes unilateral (2 cases), while the kidney or kidneys were of normal size in 4 patients; b) the almost constant presence of hypoechogenic nodules scattered throughout the kidney or kidneys (16 cases); c) global hypoechogenicity of the kidney or kidneys (3 cases)--a sign not reported it the literature--; d) hydronephrosis that was either isolated (2 cases) or associated with the renal lymphomatous lesion (3 cases). The diagnostic reliability, cost and safety of ultrasound imaging make in the examination of choice for the exploration of this affection.
Subject(s)
Kidney Neoplasms/diagnosis , Lymphoma/diagnosis , Neoplasms, Multiple Primary/diagnosis , Ultrasonography , Abdominal Neoplasms/diagnosis , Adolescent , Child , Child, Preschool , Female , Humans , Lymphatic Diseases/diagnosis , Male , MoroccoSubject(s)
Kidney/injuries , Ultrasonography , Adolescent , Child , Child, Preschool , Female , Hematoma/diagnosis , Humans , Kidney/diagnostic imaging , Male , RadiographySubject(s)
Echinococcosis, Hepatic/diagnosis , Ultrasonography , Adolescent , Child , Child, Preschool , Female , Humans , MaleABSTRACT
The value of ultrasonic tomography exploration of the abdomen in non-Hodgkin's lymphoma of the small intestine is illustrated by findings in 9 children. Performed as the initial examination for an abdominal mass (sometimes after a straight radiograph), a positive diagnosis was established by ultrasonography in all cases. Moreover, extensions of the lesion were identified in the liver in two cases, in the two kidneys in four cases, and retroperitoneal adenopathies detected in one case. Ultrasonic findings in the case of intestinal localizations were a hypoechogenic mass with a hyperechogenic zone or a gaseous acoustic shadow in its center. Kidney, liver, and retroperitoneal lesions were seen as hypoechogenic nodules. In one case, there was an increase in echogenicity of both kidneys, these being more echogenic than the liver. This atypical appearance is emphasized as it does not appear to have been reported previously in the published literature. Results of ultrasonic and conventional radiological examinations are compared, and ultrasonic differential diagnosis discussed.
