scholarly journals Lung tissue attenuation pattern in the chest computer tomography: pathogenesis, clinical role, and differential diagnosis

2019 ◽  
Vol 28 (6) ◽  
pp. 715-721
Author(s):  
M. A. Karnaushkina ◽  
A. V. Aver’yanov ◽  
V. N. Lesnyak
Keyword(s):  
Computed Tomography ◽  
Lung Tissue ◽  
Respiratory Diseases ◽  
Clinical Course ◽  
Soft Tissue Mass ◽  
Clinical Signs ◽  
Ground Glass Opacity ◽  
Clinical Role ◽  
Tissue Mass ◽  
The Given

Chest computed tomography (CT) helps better understanding clinical and pathological features of respiratory diseases. However, interpretation of CT images is difficult without information on clinical course of the disease in the given patient. Therefore, the definite diagnosis could be reached through cooperation of a clinician and a radiologist. This publication presents a lecture aimed at improving a physician's knowledge on interpretation of lung computed tomography (CT) patterns including imaging, structure and extension of abnormal signs. This information is believed to help the clinician to diagnose and differentiate pulmonary diseases based both on CT syndromes and clinical signs. A particular attention is paid on lung tissue attenuation pattern as the most common chest CT abnormality that includes five key entities, such as ground glass opacity, mosaic attenuation, consolidation, atelectasis, and soft-tissue mass.

Angiosarcoma

1989 ◽  
Vol 30 (6) ◽  
pp. 627-631 ◽  
Author(s):  
D. M. Coldwell ◽  
R. L. Baron ◽  
C. Charnsangavej
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Clinical Course ◽  
Malignant Tumors ◽  
Soft Tissue Mass ◽  
Common Finding ◽  
Long Bones ◽  
Tissue Mass ◽  
Clinical Behavior

The findings at radiography, computed tomography and angiography and the clinical course of 30 cases of angiosarcoma were reviewed. The variety of primary sites results in a multitude of findings but the most common finding was that of a hypervascular soft tissue mass seen on CT and angiography. Additional findings of well demarcated cortical defects in long bones were also frequently noted. The general clinical behavior of these aggressive malignant tumors was also reviewed and it was noted that they had a deceptively benign presentation.

A cavernous haemangioma of the thyroid gland

2005 ◽  
Vol 119 (10) ◽  
pp. 828-830 ◽  
Author(s):  
Motohiro Kano ◽  
Kaori Kameyama ◽  
Yasuhiro Hosoda ◽  
Kiminori Sugino ◽  
Koichi Ito
Keyword(s):  
Computed Tomography ◽  
Thyroid Gland ◽  
Soft Tissue Mass ◽  
Cavernous Haemangioma ◽  
Imaging Findings ◽  
Papillary Thyroid ◽  
Tissue Mass ◽  
Surgical Specimen ◽  
Right Lobe ◽  
The Right

Haemangioma of the thyroid gland is extremely rare. We report a case of a cavernous haemangioma of the neck that was located both inside and outside the thyroid gland of a 21-year-old man. Ultrasonography of the neck revealed numerous calcified nodules. Computed tomography (CT) showed a large calcified soft tissue mass in the right lobe of the thyroid. Based on the imaging findings a papillary thyroid carcinoma was suspected, but examination of the surgical specimen revealed a huge cavernous haemangioma containing numerous phleboliths.

scholarly journals Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Jed Hummel ◽  
Jason Wachsmann ◽  
Kelley Carrick ◽  
Orhan K. Oz ◽  
Dana Mathews ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Chest Pain ◽  
Soft Tissue ◽  
Soft Tissue Mass ◽  
Photon Emission ◽  
Thyroid Tissue ◽  
Ectopic Thyroid ◽  
Emission Computed Tomography ◽  
Tissue Mass ◽  
Ectopic Thyroid Tissue

Ectopic thyroid tissue is a rare entity and when discovered it is typically along the pathway of embryologic migration of the thyroid. We present a case of incidental finding of ectopic thyroid tissue within mediastinum in a 61-year-old female patient with a history of total thyroidectomy for thyroiditis and nodules. The patient presented to emergency room with cough and right chest pain and underwent a chest computed tomographic angiogram (CTA) to exclude pulmonary embolism as part of chest pain workup. One right paratracheal mediastinal soft tissue nodule was visualized on the images of CTA. This right paratracheal soft tissue mass was found to be ectopic benign thyroid tissue by histological analysis of the biopsied tissue samples. The function of this ectopic thyroid tissue was characterized by I-123 radioiodine uptake and single photon emission computed tomography/computed tomography (SPECT/CT) imaging. This case illustrates that ectopic thyroid tissue should be included for differential diagnosis of a hyperdense soft tissue mass located within mediastinum. I-123 SPECT/CT is useful for guiding tissue biopsy of ectopic thyroid tissue distant from orthotopic thyroid gland and functional and anatomic characterization of mediastinal ectopic thyroid tissue for surgical resection when it is medically necessary.

Olfactory ganglioneuroblastoma in a dog: case report and literature review

2021 ◽  
pp. 104063872110228
Author(s):  
Ashley M. Romano ◽  
Chad B. Frank
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Ganglion Cells ◽  
Soft Tissue Mass ◽  
Neoplastic Cell ◽  
Cell Populations ◽  
Intact Male ◽  
Tissue Mass ◽  
Immunohistochemical Markers ◽  
History Of

A 7-y-old, intact male Alaskan Malamute was presented with a 3-mo history of stertor and epistaxis. Computed tomography of the skull revealed generalized loss of gas throughout both nasal passages with replacement by a soft tissue mass that traversed the cribriform plate. Histopathology revealed neoplastic neuroblast cells arranged in anastomosing cords, as well as separately located aggregates of ganglion cells. Both neoplastic cell populations demonstrated immunoreactivity to MAP-2, TuJ-1, and synaptophysin. Neuroblastic cells additionally exhibited punctate immunoreactivity to MCK and CK8/18. We document here both the positive neural immunohistochemical markers for this neoplasm, as well as propose possible histomorphologic variants.

scholarly journals Pseudoaneurism of the brachial artery mimicking a soft tissue sarcoma: Case report

2021 ◽  
pp. 006-009
Author(s):  
Katsuva John Musubao ◽  
Vuhaka Simplice Kighoma ◽  
Vululi Sosthene Tsongo
Keyword(s):  
Soft Tissue ◽  
Brachial Artery ◽  
Soft Tissue Mass ◽  
Clinical Signs ◽  
Arterial Injury ◽  
Late Complications ◽  
X Rays ◽  
Mri Findings ◽  
Tissue Mass ◽  
Current Case

The current case is one of the rare clinical presentations of the brachial artery pseudo aneurysm presentation in children Pseudo-aneurism is one of the late complications of a missed or untreated arterial injury. The diagnosis is suggested in the presence of clinical signs such as: an expending, ill-defined mass with or without pulsation; bruit, pain, paresthesia, or paralysis due to nerve compression. Although plain X-Rays may show a nonspecific soft tissue mass, arteriography is essential in defining differentiating pseudo aneurisms from other soft masses. We report a case of a 10years old boy with a history of a stab injury in a well vascularized left cubital fossa region. The physical examination revealed a soft tissue mass with eroded skin. Ultrasound and MRI findings were respectively of an infected soft tissue mass and probable malignant soft tissue mass. Open biopsy was planned but surgical finding revealed a pseudo aneurism of the left brachial artery before its bifurcation. Brachial arterial lesion was repaired blood flow reestablished with clinical improvement.

scholarly journals Secondary Pulmonary Vein Stenosis Due to Total Anomalous Pulmonary Venous Connection Repair in Children: Extravascular MDCT Findings

Children ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 726
Author(s):  
Edward Y. Lee ◽  
Sara O. Vargas ◽  
Kathy J. Jenkins ◽  
Ryan Callahan ◽  
Halley J. Park ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Pulmonary Vein ◽  
Soft Tissue Mass ◽  
Ground Glass Opacity ◽  
Pulmonary Vein Stenosis ◽  
Mdct Angiography ◽  
Tissue Mass ◽  
Pleural Thickening ◽  
Vein Stenosis ◽  
Anomalous Pulmonary Venous Connection

Purpose: To evaluate extravascular findings on thoracic MDCT angiography in secondary pulmonary vein stenosis (PVS) due to total anomalous pulmonary venous connection (TAPVC) repair in children. Materials and Methods: All patients aged ≤18 years with a known diagnosis of secondary PVS after TAPVC repair, confirmed by echocardiography, conventional angiography, and/or surgery, who underwent thoracic MDCT angiography studies between July 2008 and April 2021 were included. Two pediatric radiologists independently examined MDCT angiography studies for the presence of extravascular thoracic abnormalities in the lung, pleura, and mediastinum. The location and distribution of each abnormality (in relation to the location of PVS) were also evaluated. Interobserver agreement between the two independent pediatric radiology reviewers was studied using kappa statistics. Results: The study group consisted of 20 consecutive pediatric patients (17 males, 3 females) with secondary PVS due to TAPVC repair. Age ranged from 2 months to 8 years (mean, 16.1 months). In children with secondary PVS due to TAPVC repair, the characteristic extravascular thoracic MDCT angiography findings were ground-glass opacity (19/20; 95%), septal thickening (7/20; 35%), pleural thickening (17/20; 85%), and a poorly defined, mildly heterogeneously enhancing, non-calcified soft tissue mass (17/20; 85%) which followed the contours of affected pulmonary veins outside the lung. There was excellent interobserver kappa agreement between two independent reviewers for detecting extravascular abnormalities on thoracic MDCT angiography studies (k = 0.99). Conclusion: Our study characterizes the extravascular thoracic MDCT angiography findings in secondary pediatric PVS due to TAPVC repair. In the lungs and pleura, ground-glass opacity, interlobular septal thickening, and pleural thickening are common findings. Importantly, the presence of a mildly heterogeneously enhancing, non-calcified mediastinal soft tissue mass in the distribution of the PVS is a novel characteristic thoracic MDCT angiography finding seen in pediatric secondary PVS due to TAPVC repair.

Gastric smooth muscle hamartoma in a cat

2010 ◽  
Vol 12 (4) ◽  
pp. 334-337 ◽  
Author(s):  
Thomas J. Smith ◽  
Wendy I. Baltzer ◽  
Craig G. Ruaux ◽  
Jerry R. Heidel ◽  
Patrick Carney
Keyword(s):  
Smooth Muscle ◽  
Soft Tissue ◽  
Soft Tissue Mass ◽  
Clinical Signs ◽  
Surgical Excision ◽  
Endoscopic Examination ◽  
Tissue Mass ◽  
Gastric Smooth Muscle ◽  
Esophageal Sphincter

An 11-year-old cat presented for evaluation of intermittent vomiting, constipation and hyporexia of 3 weeks duration. Ultrasonographic and endoscopic examination revealed a soft tissue mass adjacent to the lower gastro-esophageal sphincter. Surgical excision of the mass was successfully performed resulting in a resolution of clinical signs. Histologically the mass was consistent with a smooth muscle hamartoma. At follow-up 7 months after surgery, the cat remained free from clinical signs.

Quantitative peripheral computed tomography to measure muscle area and assess lean soft tissue mass in children

2021 ◽  
pp. 1-27
Author(s):  
Diana Paola Córdoba-Rodríguez ◽  
Iris Iglesia ◽  
Alejandro Gomez-Bruton ◽  
María L Miguel-Berges ◽  
Paloma Flores-Barrantes ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Soft Tissue Mass ◽  
Muscle Area ◽  
Tissue Mass

scholarly journals Vanek’s tumor causing ileoileal intussusception in a middle-aged man

2020 ◽  
Vol 2020 (7) ◽  
Author(s):  
Syamim Johan ◽  
Pei Pei Lee ◽  
Nornazirah Azizan ◽  
Firdaus Hayati ◽  
Andee Dzulkarnaen Zakaria
Keyword(s):  
Computed Tomography ◽  
Intestinal Obstruction ◽  
Soft Tissue Mass ◽  
Surgical Complication ◽  
Lead Point ◽  
Inflammatory Fibroid Polyp ◽  
Tissue Mass ◽  
Layering Effect ◽  
Fibroid Polyp ◽  
Classic Symptom

Abstract Intestinal obstruction is a common surgical emergency requiring urgent intervention. Small bowel obstruction secondary to intussusception is rarely encountered especially when inflammatory fibroid polyp (IFP) is the lead point. A 41-year-old gentleman with intestinal intussusception secondary to IFP presented to us with a classic symptom of intestinal obstruction. Computed tomography revealed a target or sausage-shaped soft tissue mass with a layering effect, which was confirmed by intraoperative findings. Histopathology was consistent with IFP and supported by immunoreactivity of CD34 and negative immunostaining for CD117. He recovered without any surgical complication or recurrence. Even intussusception can be managed via non-surgical technique in children; surgery is the mainstay of treatment in adults.

scholarly journals Thymoma in an aged backyard Leghorn chicken, with reviews of a database and literature

2021 ◽  
Vol 33 (2) ◽  
pp. 336-339
Author(s):  
Julia Blakey ◽  
Carmen Jerry ◽  
Ana da Silva ◽  
Simone Stoute
Keyword(s):  
Soft Tissue Mass ◽  
Animal Health ◽  
Postmortem Examination ◽  
Cervical Region ◽  
Laboratory System ◽  
Unexpected Death ◽  
Tissue Mass ◽  
Microscopic Features ◽  
History Of ◽  
Backyard Chickens

A 7-y-old backyard Leghorn chicken ( Gallus domesticus) was submitted to the California Animal Health and Food Safety Laboratory System (CAHFS)–Turlock branch for postmortem examination, with a history of unexpected death. At postmortem examination, a hemorrhagic soft tissue mass was observed in the cervical region. Microscopically, a densely cellular neoplasm of polygonal epithelial cells and small lymphocytes was observed. The microscopic features of the neoplasm in combination with positive immunohistochemistry for pancytokeratin and CD3 were used to classify the lesion as a thymoma. Thymoma was diagnosed in only 5 birds submitted to CAHFS from 1990 to 2019. Thymoma has been described only rarely in birds, and is an unusual diagnosis in backyard chickens.

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