Soft Tissue Mass: Causes & Reasons

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Possible Causes for Soft Tissue Mass

Fibrodysplasia Ossificans Progressiva

[…] of soft-tissue masses that develop in response to inflammation or trauma. [ncbi.nlm.nih.gov]

CT scan of the patient before calcification shows soft tissue masses in the posterior scapula region, prominent on the left side and a paraspinal soft tissue mass in the left [ncbi.nlm.nih.gov]

Patients are often subjected to biopsy of the soft-tissue masses. The pathology of the fibrodysplasia ossificans progressiva is often confused with sarcoma. [ncbi.nlm.nih.gov]

Dermatofibrosarcoma Protuberans

The typical appearance is that of an unmineralised, nodular soft-tissue mass involving the skin and subcutaneous adipose tissue. [radiopaedia.org]

The typical appearance is that of an unmineralized, nodular soft-tissue mass involving the skin and subcutaneous adipose tissue. [radiopaedia.org]

These computed tomographic scans reveal a well-defined soft tissue mass in the anterosuperior aspect of the right orbit (arrows in A and B ). [jmedicalcasereports.com]

Lymphangioleiomyomatosis

Omental soft tissue mass lesion is seen with heterogeneous enhancement as well as peritoneal masses seen abutting the anterior abdominal wall. [radiopaedia.org]

Detecting lymphangiomyomas as soft tissue masses of fat density on CT scanning can strengthen the diagnosis of LAM when a tissue biopsy has not been performed. [doi.org]

Extrapulmonary features include lymph node masses, cystic soft tissue masses, 26 27 and chylous ascites in up to a third of patients. 1 25 Uterine fibroids (leiomyomas) 8 [thorax.bmj.com]

Merkel Cell Carcinoma

KEYWORDS: Merkel cell carcinoma; dermatologic ultrasound; neuroendocrine tumors; oncology; skin ultrasound; soft tissue masses; superficial structures [ncbi.nlm.nih.gov]

A, Axial, unenhanced CT scan through the inferior turbinate shows a large, homogeneous soft-tissue mass in the right nasal fossa. [ajnr.org]

Blacksin, Doo-Hoe Ha, Meera Hameed and Seena Aisner, Superficial Soft-Tissue Masses of the Extremities, RadioGraphics, 26, 5, (1289), (2006). L.A. Mills, A.J. [doi.org]

Fibroma

Classic fibroma of tendon sheath occurred in 5 males and 5 females (median age 67 years, range 23-77 years) as soft tissue masses of the hand (n=4), finger (n=3), forearm [ncbi.nlm.nih.gov]

Each of the two tumors presented in this communication shows a soft-tissue mass with an accompanying bony lesion. [pubs.rsna.org]

Magnetic resonance imaging (MRI) showed a well-defined soft tissue mass with low to intermediate signal intensity on T1-weighted images, heterogeneously low signal intensity [ncbi.nlm.nih.gov]

Ganglion Cyst

Several soft tissue masses present in a similar fashion but can be rule out based on their defining characteristics. [maplewoodpodiatry.com]

Ganglion Cyst is one the most common soft tissue masses affecting the hand and wrist and can affect people of any age. [schoen-clinic.co.uk]

They are the most common soft tissue mass of the hand and wrist, affecting 55 out of every 100,000 people each year. [ucsfhealth.org]

Bone Lymphoma

A soft-tissue mass is also seen. [dx.doi.org]

Despite this variability, the presence of a solitary, permeative, metadiaphyseal lesion with a layered periosteal reaction on plain radiographs and a soft-tissue mass on MR [ncbi.nlm.nih.gov]

Herein we present a case of diffuse B-cell-type malignant lymphoma manifested as a large soft-tissue mass of the leg, via metastasis of primary non-Hodgkin's lymphoma of the [ncbi.nlm.nih.gov]

Hibernoma

Hibernomas are rare benign soft-tissue tumors containing brown fat. Clinically, they present as slow-growing, painless soft-tissue masses. [miami.pure.elsevier.com]

Although hibernomas are rare, they are important entities and should be considered in the differential diagnosis of a soft-tissue mass of the head or neck. [ncbi.nlm.nih.gov]

Abstract Hibernomas are rare benign soft-tissue tumors containing brown fat. Clinically, they present as slow-growing, painless soft-tissue masses. [ncbi.nlm.nih.gov]

Hemophilia

Hemophilia is a heritable disease of abnormal or incomplete clotting. Hemophilia A is the most common hereditary disease associated with life-threatening bleeding. Hemophilia B is a less common variant of this disease which occurs due to a deficiency of Christmas factor (FIX). Hemophilia presents at birth or during[…] [symptoma.com]

IgG4-Related Retroperitoneal Fibrosis

tissue mass. [ncbi.nlm.nih.gov]

Computed tomography (CT) revealed left hydronephrosis and a thick retroperitoneal soft tissue mass around the ureteropelvic junction, suspicious of renal pelvic cancer. [ncbi.nlm.nih.gov]

Coincidentally, a soft tissue mass surrounding the abdominal aorta, suggesting retroperitoneal fibrosis, was identified. [ncbi.nlm.nih.gov]

Chondroma

MRI revealed a lobulated soft tissue mass attaching the flexor tendons. The tumours were entirely removed. [ncbi.nlm.nih.gov]

We report a patient who presented with left lumbar radiculopathy, and a peripherally-enhancing dumbbell shaped soft tissue mass involving both the intraspinal and extraspinal [ncbi.nlm.nih.gov]

tissue mass. [healio.com]

Retractile Mesenteritis

Axial CT scan shows an irregular soft-tissue mass in the root of the mesentery (arrowheads). Figure 3a. Sclerosing mesenteritis. [pubs.rsna.org]

tissue mass with desmoplastic reaction “Stellate” appearance with calcification within mass Encasement of mesenteric vessels (especially portomesenteric veins) with resultant [clinicalgate.com]

The mesentery may appear to have increased attenuation with small nodes but without evidence of a discrete soft-tissue mass (,Fig 1). [pubs.rsna.org]

Malignant Neoplasm of the Bone

Cleavage plane. •+/- soft tissue mass. [slideshare.net]

No cortical erosion or soft-tissue mass was seen. [slideshare.net]

MRI may show a soft-tissue mass. Bone scan may also be done. [merckmanuals.com]

Synovial Hemangioma

Plain radiographs showed a soft tissue mass around the elbow with scat- tered nodular intraarticular calcificati ons. [file.scirp.org]

tissue mass Microscopic (histologic) description Resembles either cavernous hemangioma, lobular capillary hemangioma, arteriovenous hemangioma or venous hemangioma Microscopic [pathologyoutlines.com]

Coronal images both show a minimally enhancing soft tissue mass; most of the enhance- ment is along the septations (arrows). dren. [file.scirp.org]

Tendon Sheath Giant Cell Tumor

[…] in the hand • Usually asymptomatic • Mass usually found in soft tissue near tendon Prevalence • Fairly common • Slight predilection for women Age • 3rd-5th decades Sites [tumorsurgery.org]

GCTTS is a slow-growing soft tissue mass that develops over a period of months to years. The common clinical presentation is a painless, firm mass. [e-aps.org]

tissue mass. [ssjournals.com]

Peritoneal Fibrosis

Juxtarenal abdominal aortic aneurysm with adjacent soft tissue mass along the left lateral aspect of the aorta (arrowhead). Figure 3. [circ.ahajournals.org]

The soft tissue mass is usually dark on T1W and T2W unless there is an active inflammation whereby the T2W images can be hyperintense. [radiopaedia.org]

Examination of the soft tissue mass biopsy specimen revealed retroperitoneal fibrosis (RPF). Treatment with prednisone (40 mg once a day) was initiated. [consultant360.com]

Chondrosarcoma

tissue mass Cortical permeation and a soft tissue mass in 70% of cases Ill-defined, lytic intraosseous lesion Or extraosseous soft tissue mass Devoid of calcifications in [tumorsurgery.org]

The presence of cortical destruction or a soft-tissue mass is indicative of malignancy. [emedicine.com]

Presentation Radiology emulates pathology: Biphasic Tumor One region low grade chondrosarcoma Second m ore aggressive area with bone destruction, lysis of calcification, soft [tumorsurgery.org]

Pigmented Villonodular Synovitis

RESULTS: Among the eight subjects, 8 (100%) demonstrated soft tissue mass and enhancement after contrast administration, 6 (75%) appeared as all or focal areas of noncontrast [ncbi.nlm.nih.gov]

PVNS should be considered as a possible cause of soft tissue masses arising from the facet joints, with variable degrees of nerve root or spinal cord compression. [ncbi.nlm.nih.gov]

On MR images, PVNS is identified by multiple, lobulated intraarticular soft tissue masses. [radsource.us]

Benign Fibrous Mesothelioma of the Pleura

Large, pleural- based soft tissue mass abuts pleura in right lower lung with an acute angle (white arrow) and obtuse angle (yellow arrow) where it meets the chest wall. [learningradiology.com]

On CT, small SFTs typically appear as well-defined, homogeneous, lobular, soft-tissue masses. [kjronline.org]

Coronal multi-detector CT study (b) demonstrates a large heterogeneous soft-tissue mass with lobular borders. [pagepress.org]

Extraskeletal Myxoid Chondrosarcoma

The tumour is usually a well-defined, multinodular soft-tissue mass without calcifications. [ncbi.nlm.nih.gov]

A 43-year-old Japanese man presented with a soft tissue mass in his right thigh. A physical examination and radiography revealed a large soft tissue mass. [ncbi.nlm.nih.gov]

This is a case of a 46-year-old woman who presented with a soft tissue mass in the left vulva and underwent local excision. [ncbi.nlm.nih.gov]

Liposarcoma

We present CEUS findings of 2 concurrent soft tissue masses in 1 patient: a spermatic cord well-differentiated liposarcoma and a retroperitoneal dedifferentiated liposarcoma [ncbi.nlm.nih.gov]

MRI Axial T2 Coronal STIR Coronal STIR Coronal T1 Coronal T1 Coronal T1 C+ fat sat Axial T1 fat sat Large soft tissue mass is noted at the medial posterior portion of the [radiopaedia.org]

On imaging, ALT and well-differentiated LPS are composed mostly of fatty tissue on CT and MRI, but thick septa (> 2 mm), nodular soft-tissue elements, or soft-tissue masses [ajronline.org]

Tumoral Calcinosis

tissue mass associated with chronic renal failure and secondary hyperparathyroidism. [ncbi.nlm.nih.gov]

Progressively enlarging, juxta-articular, calcified, nodular soft-tissue masses Mostly occurs in 1st or 2nd decade Equal M:F Predominantly African-Americans Normal calcium [learningradiology.com]

Presents as painful or painless soft-tissue mass. Key Diagnostic Features: Amorphous, cystic, and multilobulated calcification located in periarticular distribution. [ajnr.org]

Epithelioid Cell Sarcoma

Radiography and CT may reveal a soft-tissue mass with speckled calcifications. [appliedradiology.com]

They account for 2.5-10% of all soft tissue sarcoma 2-4. [radiopaedia.org]

[…] origin when evaluating the patient with a soft tissue mass. [podiatrytoday.com]

Orbital Metastasis

CT scan revealed a soft tissue mass in the left orbit, which on biopsy showed histologic features of metastatic squamous cell carcinoma. [ncbi.nlm.nih.gov]

tissue masses. [academic.oup.com]

By 6 months, PSA was 5.1 ng/ml and repeat CT orbit [Figure 3] revealed complete resolution of the soft tissue mass. [indianjcancer.com]

Melorheostosis

Enhancement after intravenous gadolinium was seen in all patients imaged with soft tissue masses (n=2). [ncbi.nlm.nih.gov]

Mineralized soft tissue masses can also have increased uptake, but nonmineralized or minimally mineralized soft tissue masses can be occult on bone scintigraphy. [roentgenrayreader.blogspot.com]

This disease is associated with ossified and non-ossified soft tissue masses surrounding the joints. [ncbi.nlm.nih.gov]

Alveolar Soft-Tissue Sarcoma

tissue mass with lobulated contour. [karger.com]

tissue masses on CT [3]. [scirp.org]

Synovial sarcoma is a nodular or lobulated soft-tissue mass. [spandidos-publications.com]

Fibrosarcoma

On CT, the adult fibrosarcomas mostly showed iso-attenuated soft tissue masses ( n = 6). [ncbi.nlm.nih.gov]

These tumors are often associated with a large soft tissue mass extending from the bone 1. [radiopaedia.org]

On CT, masses appeared as iso-attenuating soft tissue masses similar to muscle. [hindawi.com]

Orbital Neoplasm

Here the soft tissue mass that is near isointense to extraocular muscle. Variable. Here the soft tissue mass is hyperintense to extraocular muscle. Enhancement. [radcharts.org]

Axial early-phase ( A ) and late-phase ( B ) CT scans show a 20-mm well-defined ovoid soft tissue mass on the right lower eyelid. [ajnr.org]

Figure 2B, C: Computed tomography (Axial, Figure 2B; Coronal, Figure 2C) revealed a 22 mm×13 mm well-defined soft tissue mass. [journals.plos.org]

Synovial Sarcoma

(b) Axial CT scan also reveals the extensively calcified soft-tissue mass (arrows). [pubs.rsna.org]

A 19-year-old patient was referred to our clinic by another hospital in Bucharest, Romania, for a soft tissue mass in the left upper thigh. [ncbi.nlm.nih.gov]

Most soft-tissue masses of the foot are too often presumed to be small and benign; therefore, compared with soft-tissue sarcomas, they are difficult to clinically differentiate [ncbi.nlm.nih.gov]

Neurilemmoma

CT and MRI images revealed a 2.2-cm well-defined, soft-tissue mass adjacent to the posterior border of the left lobe of the liver. [ncbi.nlm.nih.gov]

Plain radiography and CT scan of the chest showed a soft tissue mass lesion at the extrapleural space with erosion of surrounding ribs at the right basal lung area. [ncbi.nlm.nih.gov]

Associated soft tissue mass is typically isodense to brain. [ajnr.org]