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its echogenic fatty hilum, and central flow is noted on Color Doppler US (b). Figure 2. a, b. A 52-year-old patient with a history of non-Hodgkin lymphoma presented with a left axillary lump. MLO view (a) shows dense, round left axillary lymph nodes (arrows).
were evaluated by gray scale sonography for the echogenic hilus and power Doppler sonography for hilar vascularity. Results. Hilar vascularity was found even though the lymph node did not show an echogenic hilus on gray scale sonography (metastases, 59%; tuberculosis, 66%; and lymphoma,
heterogeneous hypoechoic lymph nodes with no echogenic hilum on gray scale imaging (A) and no vascularity on power Doppler imaging (B, asterisks, conglomerated lymph nodes). Transverse sonography of right neck level 2 shows a round hypoechoic lymph
298Sorin M. Dudea et al Ultrasonography of superficial lymph nodes: benign vs. malignant 90% of benign cervical nodes with a diameter above 5mm display an echogenic hilum  (fig 5a).
echogenic lines, better demonstrated when the longitudinal scan is along the ducts' main axis. Going towards the nipple these lines progressively separate and delineate the ... with a hypoechoic rim surrounding an echogenic center: the node's hilum.
contains an echogenic fatty hilum (Fig. 1a). The hilum is a linear, echogenic, non-shadowing structure that con-tains the nodal vessels and it appears continuous with the fat around the node. The key advantage of US is
echogenic lines that distinguishes them from a li-poma. Normal nodes in the neck are hypoechoic, with a echogenic hilum and a maximum transverse diam-eter of 8 mm (15). Abnormal nodes are round, hypo-echoic, and may even display posterior enhancement,
Echogenic Hilum Previously, the presence or absence of a central echogenic hilum had been proposed as a reliable indicator of benignity or malignancy.3,4,21,23,24 While the absence of a hilum is very suggestive of malignancy, the presence of a hilum does not
Absence of hilum. ... -87% for cortical rim thickness > 0.5 cm-80% for absence of a central echogenic hilum-77% for long/short axis ratio of < 2
4 cm round contour near the hilum and an echogenicity identical to that of adjacent spleen. Pathologic processes ... Echogenic foci with acoustic shadowing indicating calcification are found in chronic granulomatous infections such as tuberculosis,
9Echogenic linear hilum in which color Doppler imaging demonstrates blood flow Inflammatory Disease most pediatric neck masses due to acute lymphadenitis! ... - no echogenic hilum - intranodal reticulation - enlarged/conglomerate soft tissue mass - moderate flow pulsed Doppler ...
thin, linear echogenic hilum. Color Doppler ex-amination in these patients demonstrated a cen-tral vessel, sometimes branching, within the nodal hilum. No cystic changes were identified in any of the patients in this group.
3 Cervical Adenitis Homogeneous, hypoechoic, round/oval shaped masses Typically >5 mm diameter Echogenic hilum Central hypervascularity from hilum
ing some morphologic features that are frequently associated with malignancy, such as roundness, absence of echogenic hilum, loss of architecture, extra capsular
echogenic hilum, asymmetrical cortical thickening, in-tranodal vascularity, and presence of peripheral blood flow show the pathological character of the lymph nodes [3,12]. In this clinical practice, ultrasonic evaluation of axillary
which was more echogenic than surrounding splenic tissue. Received June 28, 1985; revision accepted Jan. 10, 1986. ... at the hilum of the spleen extending up into the upper pole. The remainder of the spleen was normal. The spleen weighed
• Echogenic fatty hilum. Duct • Tubular branching structures • Converge sub-areolar. Breast Ultrasound and Mammographic Correlation ... – thin, echogenic capsule + 3 or less lobulations. Palpable Thickening: Localized Dense Breast Tissue • Differentiate between
Echogenic hilum 7 18 25 Non-echogenic hilum 24 4 28 Total 31 22 53 Ökten et al. 159 A B. Mean L/T values were found as 2.3 cm (SD: 0.5) and 1.7 cm (SD: 0.3) in benign lymph nodes and lymphoma cases, respectively. L/T size ratios of benign lymph nodes
Main portal vein enters liver at hilum (Figure 2-5). Divides into right and left branches Right branch divides into anterior and posterior branches. ... echogenic center.In (C),the liver is diffusely inhomoge-neous without a discrete mass or masses.
On ultrasonography nodes are typical oval or round, hypo-echogenic with absence of an echogenic hilum and show intranodal necrosis. Findings on CT scan depend on the stage of the disease. In the early phase the affected lymph nodes are homogeneous.
echogenic aspect and absence of fatty hilum. Contrast-enhanced CT scan of the neck (Fig. 2) demonstrates on axial (A), coronal (B) and sagittal (C) images multiple enlarged jugulodigastric lymph nodes with central hypodense aspect and peri-
The echogenic hilum of lymph nodes was enlarged and TABLE I ultrasound findings in Symmers’ fibrosis Periportal thickening Echogenic thickening of the gallbladder wall Liver right lobe reduction Liver left lobe augmentation Splenomegaly
the other hand, the hilum is identiﬁed as a highly echogenic structure in the central part of the node (Fig 1). A preceding report showed that abnormal echogenic structures in the pa-renchyma could be caused by metastatic disease (11). There-
Echogenic Hilus The presence of a central echogenic hilus within lymph nodes is usually considered as a sign of benignity [54,59,60, 62]. Solbiati et al.  found that only 4% of metastatic nodes
demonstrating an echogenic fatty hilum that may become. Transthoracic Ultrasound Respiration 2003;70:87–94 91 even more prominent with inflammation. Malignant lymph nodes usually appear plump, rounded, hypoechoic, with loss of the fatty hilum [4–6].
echogenic signs of malignancy in regional cervical lymph nodes at ultrasound examination, ... sence of an echogenic hilum, microcalcification within lymph nodes, cystic areas within lymph nodes, peri-pheral rather than central blood flow on color Doppler
echogenic fatty hilum, with peripheral hypoechogenicity. (b) High-resolution ultrasound image showing an abnormal lymph node in the right groin. The node is hypoechoeic, irregularly shaped and has lost the central fatty hilum.
Normal node: Oval, visible echogenic hilum, thin cortex Reactive nodes – thicker cortex, oval shape, usually multiple and bilateral Abnormal node: Even normal appearing nodes may be positive due to small/ micrometastases.
Sanders17 claimed that echogenic hilum in a large node is a good indicator that it is benign and is due to fat deposition. Rubaltelli et al. 18 also concluded that echogenic hilum is a valid criterion for benignity. Some authors differed and opined that
– Intraperitoneal, except hilum – Left hypochondrium – Left hemidiaphragm superior – generally considered to be ovoid, with a ... • The spleen appear more echogenic in comparison to left kidney. 5 Parenchymal Disease Focal abnormalities Abscess • Uncommon due to phagocytic activity of
echogenic hilum that interrupts the continuity of the cortical and is continued with the perinodal fat tissue. This appearance is due to the abutment of multiple medullar sinuses acting as interfaces (3, 4, 21). It has been shown that about 90% of benign
mansoni: expanded gallbladder fossa and fatty hilum signs ... Conclusions: Echogenic thickening of the gallbladder wall and of the main portal vein wall heretofore attributed to fibrosis were frequently identified as fat tissue in MRI.
The oval shape of the lymph nodes and the eccentric echogenic hilum with its associated hilar bloodflow pattern helps to identify lymph nodes. Purulent abscess formation can present as a heterogenous mass or is sometimes identified as a
Normal: echogenic hilum — Interfaces with fluid-filled sinuses —Not due to fat Abnormal: enlarged, short axis > I .5 cm Radiology 1992; 183215 Lymph Node: reactive Longitudinal lor Do ler 29 . Lymph Node: reactive Lymph Node: angiosarcoma metastasis
ic cortex, and an echogenic linear hilum (14). Because of their small size, normal ILNs may be difficult to detect at US. In general, ILN metas-tases are round, circumscribed, and larger and less echogenic than benign nodes; demonstrate
highly echogenic area with ring-down artifact or dirty shadowing. An air-fluid level may also be observed. ... An irregular, hypoechoic collection is seen near the hilum of the spleen. Given the patient’s history of abdominal trauma, a hematoma is the most likely diagnosis.
crosis, peripheral calcifications, absence of an echogenic hilum, minimum axial diameter of the lymph node > 7 mm for Level II and > 6 mm for the rest of the neck, hy-perechogenicity in relation to the adjacent muscles, and
echogenic hilum. Results: 27 (25.5%) patients had enlarged supraclavicular lymph nodes on US. Fourteen patients (13.2%) had cytologi-cally proven lymph node involvement. Supraclavicular lymph node metastasis was more frequent in patients with medi-
In general, benign lesions are isoechoic or echogenic compared to normal background echogenicity of the thyroid. Hyperplastic and adenomatous nodules often have a thin, well-defined hypoechoic halo on the periphery of the lesion.
The central echogenic hilum was avoided (Figure 3). In the postprocedural follow-up, patients were instructed to remain in bed with a sandbag at back for 24 h following the biopsy. Vital signs were measured at half
Lymph vessels emerge from the splenic hilum, passes through other lymph nodes along the course of the splenic artery, and drain into the celiac nodes (Hagen- ... Chronic: Sonographic findings include a wedge-shaped, echogenic area with the base pointing to the periphery ...
0.5), absence of echogenic hilum, abnormal ecogenicity of LN, calcification, cystic change and a peripheral color Doppler pattern. The location (levels I-VI) of all cervical LNs were recorded, based on the American Joint Com-
described to be hypoechoic, without echogenic hilum, with round shape, longitudinal totransverse diameters ratio less than 2, and blood vessels predominant in pe-riphery [3-7]. Contrast-enhanced ultrasound (CEUS) is
It is also bean shaped with an echogenic hilum and a hypoechoic cortex giving the usual cortico-medullary differentiation. BI-RADS Lexicon Annals of Ibadan Postgraduate Medicine. Vol.3 No1 June, 2005 83. Doppler Studies Power ultrasound and Colour ...
Atriangular, echogenic focusofperirenal tissueintheanterosuperior orposteroin-feriormargin ofthekidney, thejunctional parenchymal defect ... anteromedially pointed hilum(fig.4D).Theoblique interre-nicular junction parallels theoblique hilum, which oftenis
Two echogenic lines represented the reﬂections of the mesovarium (Figs 7–9) and this characteristic ‘tram line’ appearance of the long axis of the ovarian hilum was a useful marker for identifying the ovary. Small, echolucent areas were sometimes seen within the hilum of some
2 value in predicting malignancy. However the importance of ultrasound features suggesting benignancy is central hilar vascular pattern (OR - 0.030), echogenic hilum (OR - 0.032),
echogenic hilum. Fig 6. Hyperaemic lymph nodes in reactive adenitis. The nodes are enlarged but retain their morphology. There is markedly increased blood flow in them. Fig 7. Multiple enlarged nodes in lymphoma. The nodes are rounded in
Absence of an echogenic hilum Hypoechogenicity of the node compared with adjacent muscle Lymph node necrosis Abnormal vascularity using power Doppler Fine-needle aspiration cytology was performed if one or more of the outlined criteria were detected with ultrasound scan.
changes, and loss of echogenic hilum (15). FNA washout FNA was US guided and performed with BD spinal needles (22 GA: 0.7!38 mm, Becton Dickinson SA, Madrid,Spain)whenthemassdepthwasabove1 cm.In such cases, the stylet was left in while advancing the