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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,
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 hilum and the presence of cystic portions and calcifications were significantly greater in malignancies than in benign lesions (P < .001). In most cases, metastatic nodules were situated in the lower third of the neck.
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
of colour Doppler signalsin normal axillary lymph The presence of fat in the central echogenic hilum nodes in women with breast cancer and in asymp- has previously been documented in a sonographic/
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.
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,
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 ...
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
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
• Preserved echogenic hilum
ing some morphologic features that are frequently associated with malignancy, such as roundness, absence of echogenic hilum, loss of architecture, extra capsular
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.
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,
• 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 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).
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.
the echogenic hilum secondary to necrotic tissue [3,4]. This patient had an insidious onset of disease, and given his smoking history, the lateral neck mass was likely neoplastic,althoughaninfectious etiologywasalsopossible.
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 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
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.
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
showed the presence of an echogenic hilum. Most nodes were homogeneous (87%), and only two nodes (13%) showed evidence of intranodal necro-sis. All the nodes were distributed in the submental and submandibular regions and upper cervical
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-
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].
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
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.
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.
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.
echogenic hilum, presence of central necrosis) were also recorded. Fine-Needle Aspiration or Core Biopsy Aspirates and tissue cores obtained were re-trieved. All specimens were reviewed by two expe-rienced pathologists, each having more than 5
absence of an echogenic hilum . Of these, the most relevant feature is the presence of cystic necrosis and calcification within the lymph node; the specificity is almost 100% in patients with PTC . These character-
– 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
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
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
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-
of the echogenic hilum, or when central necrosis was present. Histologic Findings and Analysis All the histologic and cytologic slides of these patients were retrieved and reviewed independently by two pathologists. For histology, all the materials
• The spleen has a homogenous cortex and echogenic capsule and hilum ... • There is a notable echogenic line with a “sliding appearance” composed of the visceral and parietal pleura
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.
with echogenic fociperipherally, consistent with intramammary lymph nodes (Fig3). Three-month follow-up mammography was ... echogenic hilum. Withmalignancy, thefatty hi-lummaybelost, theshape maybecome irregu-lar,andcalcifications canbeseen (11).The
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
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
echogenic foci within the right upper outer quadrant. C. Abnormal lymph nodes without fatty hilum in the right axilla can be seen. ... hilum, and the use of color Doppler ultrasonography to define suspicious lymph nodes on ultrasonography [31-33].
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-
Longitudinal US images (A and B) demonstrate a highly echogenic lesion (A) which causes dense posterior shadowing. ... They have an echogenic central fatty hilum. With superimposed infection, the normal nodal architecture becomes distorted and
Liver hilum stretched by the huge retroperitoneal tumor. Figure 2. Huge retroperitoneal tumor displacing the liver. ... echogenic on ultrasonography, and avascular on angiography. Computed tomography is a very sensitive modality for diagnosis, ...
echogenic hilum was not considered a sign of malignan-cy, knowing that the normal lymph node don’t often have hyperechoic hilum in head and neck region4. The hard (stiff) aspect on elastography and intense homogenous
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
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 ...
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
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 hour intervals for the first two hours and hourly for a day thereafter.