Circumscribed Mass: Cysts, Complicated Cysts, Clustered Microcysts

2018 ◽  
Author(s):  
Mark D. Kettler
Keyword(s):  
Differential Diagnosis ◽  
Older Women ◽  
Definitive Diagnosis ◽  
Imaging Features ◽  
Tissue Sampling ◽  
Diagnosis And Management ◽  
Terminal Duct Lobular Unit ◽  
Management Recommendations ◽  
Cystic Masses ◽  
Careful Assessment

Benign cysts can occur in women of all ages, but they have a predilection for women in their 40s and 50s, and are far less common in younger and older women. Most cysts arise at the level of the terminal duct-lobular unit (TDLU); less commonly, cysts are caused by ectasia of central ducts. This chapter, appearing in the section on circumscribed mass, reviews the key clinical and imaging features, differential diagnosis, and management recommendations for primary cystic masses, including simple cysts, complicated cysts, and clustered microcysts. Careful assessment of sonographic features usually allows a definitive diagnosis of these benign entities that do not typically require tissue sampling. Some complex masses containing fluid and/or cystic-appearing components may require tissue sampling for diagnosis.

Circumscribed Mass: Fibroadenoma

2018 ◽  
Author(s):  
Mark D. Kettler
Keyword(s):  
Differential Diagnosis ◽  
Breast Tumor ◽  
Breast Tissue ◽  
Overwhelming Majority ◽  
Imaging Features ◽  
Peak Incidence ◽  
Diagnosis And Management ◽  
The Third ◽  
Terminal Duct Lobular Unit ◽  
Management Recommendations

A fibroadenoma is a benign fibroepithelial breast tumor arising from the terminal duct-lobular unit (TDLU), composed of epithelial and stromal elements. The overwhelming majority of fibroadenomas present as palpable or imaging-detected circumscribed masses showing sharp demarcation between the lesion and the adjacent breast tissue. Fibroadenomas are the most common benign breast tumor occurring in women, with a peak incidence in the third and fourth decades, but they can occur from childhood through the eight decade of life. This chapter, appearing in the section on asymmetry, mass, and distortion, reviews the key clinical and imaging features, differential diagnosis, and management recommendations for fibroadenomas.

One-View Asymmetry

2018 ◽  
Author(s):  
Paul H. Levesque ◽  
Laura Sheiman
Keyword(s):  
Differential Diagnosis ◽  
Clinical Features ◽  
Normal Tissue ◽  
Mirror Image ◽  
Imaging Features ◽  
Benign Lesions ◽  
Tissue Density ◽  
Diagnosis And Management ◽  
Fibroglandular Tissue ◽  
Ultrasound Assessment

This chapter, appearing in the section “Asymmetry, Mass, and Distortion,” will discuss the presence of tissue asymmetry visualized only on one view. The distribution of fibroglandular tissue is extremely variable and unique from one patient to another; however, in most patients the parenchyma is usually distributed within the breasts symmetrically in a “mirror-image” fashion. Areas of tissue density (asymmetry) may be seen that are only visualized on the craniocaudal (CC) or mediolateral oblique (MLO) view. In the majority of patients, this finding represents superimposed normal tissue, or islands of normal parenchyma. Occasionally, underlying benign lesions may present as a tissue asymmetry. Rarely, a one-view asymmetry may represent a malignancy. This section will discuss the imaging features (including mammography, tomosynthesis, and ultrasound assessment), clinical features, differential diagnosis, and management suggestions for one-view asymmetries.

Circumscribed Mass: Intramammary Lymph Node

2018 ◽  
Author(s):  
Mark D. Kettler
Keyword(s):  
Differential Diagnosis ◽  
Lymph Nodes ◽  
Breast Imaging ◽  
Three Dimensional ◽  
Screening Mammography ◽  
Imaging Features ◽  
Breast Masses ◽  
Intramammary Lymph Node ◽  
Management Recommendations ◽  
Do So

This chapter, appearing in the section on circumscribed mass, reviews the key clinical and imaging features, differential diagnosis, and management recommendations for intramammary lymph nodes. Benign intramammary lymph nodes are ubiquitous on screening mammography, and whenever it is possible to do so, they should be differentiated from solid masses in order to avoid unnecessary recalls for diagnostic imaging. Three-dimensional tomosynthesis can facilitate the diagnosis of benign intramammary lymph nodes and decrease the number of recalls for supplemental breast imaging. Ultrasound may help in distinguishing between benign lymph nodes and other breast masses when this cannot be accomplished by using mammography alone.

Circumscribed Mass: Invasive Cancer

2018 ◽  
Author(s):  
Mark D. Kettler
Keyword(s):  
Differential Diagnosis ◽  
Ductal Carcinoma ◽  
Medullary Carcinoma ◽  
Mucinous Carcinoma ◽  
Architectural Distortion ◽  
Imaging Features ◽  
High Grade ◽  
Breast Cancers ◽  
Management Recommendations ◽  
Invasive Papillary Carcinoma

Most invasive breast cancers present as focal asymmetries, areas of architectural distortion, or irregular masses with indistinct or spiculated margins. Some present as round or oval masses with circumscribed margins; however, most round or oval masses have microlobulated, indistinct, or spiculated margins and may be associated with characteristic malignant calcifications. This chapter, appearing in the section on circumscribed mass, reviews the key clinical and imaging features, differential diagnosis, and management recommendations for invasive breast cancers, which can present as circumscribed masses on mammography and sonography. Examples include medullary carcinoma, mucinous carcinoma, invasive papillary carcinoma, and high-grade invasive ductal carcinoma. These lesions may present as solid or complex masses with circumscribed margins and may be confused with several benign breast conditions.

A Case of an Extraosseous Pretibial Ganglion Cyst

2019 ◽  
Vol 1 ◽  
pp. 114-116
Author(s):  
Catrin Wigley ◽  
Guy Morris ◽  
Scott Evans ◽  
Rajesh Botchu
Keyword(s):  
Differential Diagnosis ◽  
Ganglion Cyst ◽  
Imaging Features ◽  
Oncology Service ◽  
Orthopedic Oncology

Pretibial lesion can have a plethora of differential diagnosis. We report a case of extraosseous pretibial ganglion cyst which was referred to our orthopedic oncology service and described the imaging features.

scholarly journals Primary Malignant Orbital Tumors

2021 ◽  
Vol 82 (01) ◽  
pp. 081-090
Author(s):  
Jacquelyn Laplant ◽  
Kimberly Cockerham
Keyword(s):  
Multimodal Therapy ◽  
Surgical Techniques ◽  
Surgical Approaches ◽  
Imaging Features ◽  
Orbital Surgery ◽  
Diagnosis And Management ◽  
Microsurgical Techniques ◽  
Invasive Techniques ◽  
Traditional Approaches ◽  
Orbital Imaging

Abstract Objective Primary orbital malignancy is rare. Awareness of the characteristic clinical and imaging features is imperative for timely identification and management. Surgery remains an important diagnostic and treatment modality for primary orbital malignancy, but determining the optimal surgical approach can be challenging. The purpose of this article is to explore recent advances in the diagnosis, management, and surgical approaches for primary orbital malignancies. Design In this review, the clinical presentation, imaging features, and medical and surgical management of primary orbital malignancies with representative cases will be discussed. Setting Outpatient and inpatient hospital settings. Participants Patients with diagnosed primary orbital malignancies. Main Outcome Measures Descriptive outcomes. Results Advancements in orbital imaging, microsurgical techniques, and multimodal therapy have improved the diagnosis and management of primary orbital malignancies. Special considerations for biopsy or resection are made based on the tumor's location, characteristics, nearby orbital structures, and goals of surgery. Minimally invasive techniques are supplanting traditional approaches to orbital surgery with less morbidity. Conclusions Advances in imaging technologies and surgical techniques have facilitated the diagnosis and management of primary orbital malignancies. Evolution toward less invasive orbital surgery with focus on preservation and restoration of function is underway.

scholarly journals Not all that glitters is COVID! Differential diagnosis of FDG-avid interstitial lung disease in low-prevalence regions

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Annalisa Papa ◽  
Chiara Pozzessere ◽  
Francesco Cicone ◽  
Fabiola Rizzuto ◽  
Giuseppe Lucio Cascini
Keyword(s):  
Differential Diagnosis ◽  
Interstitial Lung Diseases ◽  
Routine Activity ◽  
Imaging Features ◽  
Pet Ct ◽  
Oncologic Patients ◽  
The Many ◽  
Fdg Pet Ct ◽  
Low Prevalence ◽  
Similar Imaging

Abstract Coronavirus disease-19 (COVID-19) is only one of the many possible infectious and non-infectious diseases that may occur with similar imaging features in patients undergoing [18F]-fluorodeoxyglucose (18FDG) monitoring, particularly in the most fragile oncologic patients. We briefly summarise some key radiological elements of differential diagnosis of interstitial lung diseases which, in our opinion, could be extremely useful for physicians reporting 18FDG PET/CT scans, not only during the COVID-19 pandemic, but also for their normal routine activity.

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