scholarly journals Sclerosing Hemangioma of the Lung and Concurrent Sarcoidosis of the Hilar Lymph Nodes

2016 ◽  
Vol 1 (3) ◽  
pp. 173-178
Author(s):  
Soichi Takekawa ◽  
Takehiko Abe ◽  
Yoshikei Miura ◽  
Hidenori Shinjo ◽  
Kenji Kawakura ◽  
...  
Keyword(s):  
Lymph Nodes ◽  
Thoracoscopic Surgery ◽  
Benign Lesion ◽  
Malignant Lesion ◽  
Sclerosing Hemangioma ◽  
Medicine Research ◽  
Pulmonary Sclerosing Hemangioma ◽  
Contrast Enhanced Ct ◽  
Imaging Results ◽  
Enhanced Ct

Objective: To present chest radiographs, CT and pathological fndings of pulmonary sclerosing hemangioma with concurrent sarcoidosis. To review the literatures regarding lung cancer and associated sarcoidosis and/or sclerosing hemangioma.Materials and Methods: A 50 year-old female patient was screened for health at human dock at Preventive Medicine Research Center of our institution, and a rounded nodule, measuring about 15 mm in diameter, was found in the left lower lung feld medially. Non-enhanced CT showed a round nodule at the left cardiac border. The patient was sent to a clinic of our institution.Results: The patient was further studied by contrast enhanced CT (CECT), which showed marked increase of CT value to 91.8 HU from 50.1 HU on non-enhanced CT. It was difcult to di?erentiate a benign lesion from malignant lesion. CECT also showed enlarged hilar and mediastinal lymph nodes. Cytology at the time of bronchoscopy revealed Class 3 at the left B5b bronchus. Partial resection of the lingual was carried out by video-assisted thoracoscopic surgery. Biopsy of the left hilar nodes (#10, #11) at the same time revealed sarcoidosis.Conclusion: A rare case of pulmonary screlosing hemangioma and concurrent sarcoidosis was reported with imaging results and pathological proof.

scholarly journals Multi-factorial considerations for intra-thoracic lymph node evaluations of healthy cats on computed tomographic images

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Ninlawan Thammasiri ◽  
Chutimon Thanaboonnipat ◽  
Nan Choisunirachon ◽  
Damri Darawiroj
Keyword(s):  
Lymph Node ◽  
Lymph Nodes ◽  
Ct Images ◽  
Slice Thickness ◽  
Maximum Width ◽  
Post Contrast ◽  
Computed Tomographic ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Abstract Background It is difficult to examine mild to moderate feline intra-thoracic lymphadenopathy via and thoracic radiography. Despite previous information from computed tomographic (CT) images of intra-thoracic lymph nodes, some factors from animals and CT setting were less elucidated. Therefore, this study aimed to investigate the effect of internal factors from animals and external factors from the CT procedure on the feasibility to detect the intra-thoracic lymph nodes. Twenty-four, client-owned, clinically healthy cats were categorized into three groups according to age. They underwent pre- and post-contrast enhanced CT for whole thorax followed by inter-group evaluation and comparison of sternal, cranial mediastinal, and tracheobronchial lymph nodes. Results Post contrast-enhanced CT appearances revealed that intra-thoracic lymph nodes of kittens were invisible, whereas the sternal, cranial mediastinal, and tracheobronchial nodes of cats aged over 7 months old were detected (6/24, 9/24 and 7/24, respectively). Maximum width of these lymph nodes were 3.93 ± 0.74 mm, 4.02 ± 0.65 mm, and 3.51 ± 0.62 mm, respectively. By age, lymph node sizes of these cats were not significantly different. Transverse lymph node width of males was larger than that of females (P = 0.0425). Besides, the detection score of lymph nodes was affected by slice thickness (P < 0.01) and lymph node width (P = 0.0049). Furthermore, an irregular, soft tissue structure, possibly the thymus, was detected in all juvenile cats and three mature cats. Conclusions Despite additional information on intra-thoracic lymph nodes in CT images, which can be used to investigate lymphatic-related abnormalities, age, sex, and slice thickness of CT images must be also considered.

Müllerianosis of the urinary bladder with unilateral complete renal agenesis: a rare coincidental finding causing delayed presentation

2020 ◽  
Vol 13 (7) ◽  
pp. e235217
Author(s):  
Shanmugasundaram Rajaian ◽  
Lakshman Murugasen ◽  
Deepti Jain ◽  
Srinivas Chakravarthy Narasimhachar
Keyword(s):  
Urinary Bladder ◽  
Benign Lesion ◽  
Left Kidney ◽  
Scar Tissue ◽  
Delayed Presentation ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Ureteric Orifice

Müllerianosis is a rare benign lesion of the urinary bladder, which is constituted by two or more of the Müllerian-duct-derived tissues. We report a 45-year-old perimenopausal multiparous woman presenting with occasional episodes of dysuria and lower abdominal discomfort of recent duration. Ultrasound examination revealed a well-defined lesion in urinary bladder and the absence of left kidney. Contrast-enhanced CT of the abdomen confirmed the findings. During diagnostic cystoscopy, haemorrhagic polypoidal lesions were noted in the left side of the posterolateral wall and dome of urinary bladder along with the absence of left ureteric orifice. Transurethral resection of the bladder lesions was done and histology examination confirmed the diagnosis of Müllerianosis. She was administered Luteinizing hormone-releasing hormone (LHRH) agonist monthly. At 1 year of follow-up, cystoscopy showed only scar tissue. The case was reported for the rarity of Müllerianosis noted in a patient with unilateral agenesis of kidney, a possible cause of delayed presentation.

scholarly journals The state of the art in kidney and kidney tumor segmentation in contrast-enhanced CT imaging: Results of the KiTS19 challenge

2021 ◽  
Vol 67 ◽  
pp. 101821
Author(s):  
Nicholas Heller ◽  
Fabian Isensee ◽  
Klaus H. Maier-Hein ◽  
Xiaoshuai Hou ◽  
Chunmei Xie ◽  
...  
Keyword(s):  
State Of The Art ◽  
Ct Imaging ◽  
The State ◽  
Tumor Segmentation ◽  
Kidney Tumor ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Imaging Results ◽  
Enhanced Ct

Analysis of Mediatinal Lymph Nodes with Internal Low Density on Contrast Enhanced CT Scan

1997 ◽  
Vol 44 (2) ◽  
pp. 264
Author(s):  
Young Hoon Ryu ◽  
Kyu Ok Choe ◽  
Yong Kook Hong ◽  
Sung Kyu Kim ◽  
Joon Chang ◽  
...  
Keyword(s):  
Lymph Nodes ◽  
Ct Scan ◽  
Low Density ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

scholarly journals Metastasis of primary breast angiosarcoma to axillary and supraclavicular lymph nodes: a rare case diagnosed using imaging data

2021 ◽  
Vol 49 (3) ◽  
pp. 030006052110023
Author(s):  
Xiaojuan Qin ◽  
Yu Wu ◽  
Lan Yu ◽  
Qing Lv ◽  
Mingxing Xie
Keyword(s):  
Lymph Nodes ◽  
Rare Case ◽  
Benign Lesion ◽  
Malignant Lesion ◽  
Left Breast ◽  
Hematogenous Metastasis ◽  
Imaging Data ◽  
Positron Emission ◽  
Supraclavicular Lymph Nodes ◽  
Lesion Core

Primary breast angiosarcoma (PBA) is a rare malignant tumor. PBA usually undergoes hematogenous metastasis; lymph node metastasis is very rare in such patients, and metastasis of PBA to the supraclavicular lymph nodes has not previously been reported. Here, we describe a rare case of PBA manifested by a diffuse enlargement of the left breast, with metastasis to the left axillary and bilateral supraclavicular lymph nodes. Contrast-enhanced ultrasound and positron emission tomography findings indicated a malignant lesion, whereas magnetic resonance imaging suggested a benign lesion. Core needle biopsy identified the lesion as a lymphangioma, and the histological characteristics suggested a high-grade angiosarcoma. Multimodal imaging and perfusion patterns obtained using various contrast agents can thus help to diagnose PBA.

scholarly journals Latissimus dorsi free flap reconstruction of major abdominal defect in treatment of giant Marjolin’s ulcer: a short report focused on preoperative imaging

2014 ◽  
Vol 3 (1) ◽  
pp. 204798161351661 ◽  
Author(s):  
Signe Muus Steffensen ◽  
Anders Thomassen ◽  
Jesper Poul Naested Jensen ◽  
Jens Ahm Soerensen
Keyword(s):  
Lymph Nodes ◽  
Ct Scan ◽  
Preoperative Imaging ◽  
Short Report ◽  
Contrast Enhanced Ct ◽  
Positron Emission ◽  
Contrast Enhanced ◽  
Pet Ct ◽  
Enhanced Ct ◽  
Pet Ct Scan

We present a case of a 56-year-old man with a giant carcinoma in the abdominal wall. Based on positron emission tomography/computed tomography (PET/CT) scan there were FDG-avid lymph nodes in the ipsilateral axillary and groin, suspicious for metastases. At contrast-enhanced CT the parietal peritoneum seemed free of tumor invasion, which was essential to radical surgery planning. The tumor was completely removed with clear margins of resection and no metastasis in the resected lymph nodes. The PET/CT scan was repeated after 4 months, showing no signs of recurrence.

scholarly journals Lymph Nodal Metastatic Pattern in Carcinoma Gallbladder with Multidetector Computed Tomography: An Institutional Experience

2020 ◽  
Author(s):  
Gaurav Raj ◽  
Bhanupriya Singh ◽  
Richa Raj ◽  
Ragini Singh
Keyword(s):  
Computed Tomography ◽  
Lymph Nodes ◽  
Multidetector Computed Tomography ◽  
Single Phase ◽  
Metastatic Pattern ◽  
Contrast Enhanced Ct ◽  
Carcinoma Gallbladder ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Institutional Experience

Abstract Objective This work aimed to study the distribution of lymph nodal metastatic pattern in carcinoma gallbladder with multidetector computed tomography (CT). Materials and Methods A retrospective observational study was conducted including 80 patients with carcinoma gallbladder who underwent triple-phase CT angiography or single-phase contrast-enhanced CT scan of the abdomen between January 2019 and November 2019. Results In our study, 75 (93.7%) out of 80 cases showed metastasis to lymph nodes, with distribution as follows: periportal (69), peripancreatic (62), and aortocaval (47). The most common involved combination included all three lymph nodal groups (periportal, peripancreatic, and aortocaval), involving 40 (50%) cases. The combination of only periportal and peripancreatic lymph nodes was seen in 17 (21%) cases. Isolated periportal lymph nodes were seen in eight cases (10%) cases. The combination of only periportal and aortocaval lymph nodes was seen in four (5%) cases. Isolated peripancreatic lymph nodes were seen in three (3.7%) cases. The combination of periportal and aortocaval was seen in four (5%) cases followed by peripancreatic and aortocaval lymph nodes that was seen in two (2.5%) cases. Isolated aortocaval lymph nodes were seen in one (1.2%) case. Conclusion Periportal lymph nodes were the single most commonly involved station followed by peripancreatic and aortocaval lymph nodes. The combination of periportal, peripancreatic, and aortocaval lymph nodes was seen most commonly. The second most commonly involved combination was found to be periportal and peripancreatic lymph nodes followed by isolated periportal lymph nodes.

scholarly journals Application of Contrast-Enhanced Ultrasound (CEUS) in Lymphomatous Lymph Nodes: A Comparison between PET/CT and Contrast-Enhanced CT

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Xuelei Ma ◽  
Wenwu Ling ◽  
Fan Xia ◽  
Yifan Zhang ◽  
Chenjing Zhu ◽  
...  
Keyword(s):  
Lymph Nodes ◽  
False Negative ◽  
False Negative Rate ◽  
Arterial Phase ◽  
Contrast Enhanced Ultrasound ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Therapeutic Decisions ◽  
Pet Ct ◽  
Enhanced Ct

Purpose. We described imaging characteristics of different types of lymphomas using contrast-enhanced ultrasound (CEUS) and summarized some simple criteria to distinguish between normal lymph nodes and lymphomatous lymph nodes for clinical diagnosis. Materials and methods. Sixty-one lymphoma patients from 2014 to 2015 with 140 suspicious lymph nodes, who had been confirmed by histology and underwent chemotherapy, were enrolled in our study. The responses to chemotherapy were recorded by PET/CT, contrast-enhanced CT, or CEUS. Results. We summarized the CEUS enhancement patterns as two types when detecting lymphomatous lymph nodes, which could be the specific diagnostic criteria: (1) rapid well-distributed hyperenhancement, with 83.1% lesions exhibiting a fast-in hyperenhancement pattern in the arterial phase, and (2) rapid heterogeneous hyperenhancement, with 16.9% lesions exhibiting heterogeneous in the arterial phase. Particularly, we found that all the suspicious lesions of indolent lymphomas were rapid well-distributed hyperenhancement. CEUS successfully identified 117 lymphomatous lymph nodes, while PET/CT and contrast-enhanced CT detected 124 and 113 lymphomatous lymph nodes, respectively. CEUS had an accuracy of 83.57%, and the accuracy of PET/CT and contrast-enhanced CT was 88.57% and 80.71%, respectively (p=0.188). The false-negative rate was 16.43%, 11.43%, and 19.29%, respectively (p=0.188). Conclusion. CEUS could be a useful tool in detecting lymphomatous nodes. A rapid well-distributed hyperenhancement pattern in CEUS could be a useful diagnostic criterion in both aggressive lymphoma and indolent lymphoma. These results can help us distinguish between lymphomatous and benign lymph nodes and make better diagnostic and therapeutic decisions.

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