scholarly journals Sebaceous Lymphadenoma of Parotid: Imaging, Cytological, and Histological Findings in Detail

2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Golsa Shekarkhar ◽  
Hossein Soleimanpour ◽  
Seyed Hamed Jafari ◽  
Fatemeh Zamani
Keyword(s):  
Salivary Gland ◽  
Case Reports ◽  
Causative Factor ◽  
Clinicopathological Features ◽  
Diagnostic Methods ◽  
Imaging Findings ◽  
Histological Findings ◽  
Radiologic Findings ◽  
Malignant Lesions ◽  
Sebaceous Lymphadenoma

Sebaceous lymphadenomas are rare and account for less than 1% of primary salivary gland tumors. These rare tumors are mostly found in men older than 50 years. The clinicopathological features of these tumors are poorly understood and no definite causative factor has been reported for them till now. They are not often diagnosed prior to surgery, which could be due to their rarity and lack of enough preop radiological and cytological findings. Few case reports have been published in literature about their pathogenesis and accompanying malignant lesions. The cytological and imaging findings have been dealt with in some articles. Here we describe the histologic, cytologic, and radiologic findings of sebaceous lymphadenomas of parotid gland, all together, and discuss their differential diagnoses in various diagnostic methods.

scholarly journals Regarding the “Is Surgery an Inevitable Treatment for Advanced Salivary Lymphoepithelial Carcinoma? Three Case Reports”

2020 ◽  
pp. 014556132093492
Author(s):  
Dmitry Tretiakow ◽  
Andrzej Skorek
Keyword(s):  
Salivary Gland ◽  
Surgical Treatment ◽  
Induction Chemotherapy ◽  
Concurrent Chemoradiotherapy ◽  
Case Reports ◽  
Salivary Gland Tumor ◽  
Diagnostic Methods ◽  
Lymphoepithelial Carcinoma ◽  
Gland Tumor ◽  
Previous Surgery

Salivary lymphoepithelial carcinoma is a highly radiosensitive tumor that suggests the effectiveness of induction chemotherapy and induction concurrent chemoradiotherapy without previous surgery. However, the imperfection of diagnostic methods and the severe consequences of misdiagnosis of the tumor do not allow to resign from surgical treatment in patients with this type of salivary gland tumor.

scholarly journals Myeloid Sarcoma That Infiltrated a Preexisting Sebaceous Lymphadenoma in the Parotid Gland: Diagnostic Challenges and Literature Review

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Sunmi Jo ◽  
Hye-kyung Shim ◽  
Joo Yeon Kim ◽  
Sang Kyun Bae ◽  
Mi Ra Kim
Keyword(s):  
Salivary Gland ◽  
Literature Review ◽  
Parotid Gland ◽  
Salivary Glands ◽  
Submandibular Gland ◽  
Diagnostic Methods ◽  
Myeloid Sarcoma ◽  
Histopathologic Evaluation ◽  
High Index Of Suspicion ◽  
Sebaceous Lymphadenoma

Myeloid sarcoma (MS) is a rarely encountered extramedullary localized tumor that is composed of immature myeloid cells. We reported an extremely rare case of MS with concurrent bone marrow (BM) involvement that invaded into a preexisting sebaceous lymphadenoma in the parotid gland and neck lymph nodes. Prompted by this case, we also present a literature review of MS invasion into salivary glands. A 62-year-old man was initially diagnosed with carcinoma that arose in a sebaceous lymphadenoma in the parotid gland, through a total parotidectomy with neck dissection. After an extensive histopathological review that included immunohistochemistry, a pathologic diagnosis of MS with infiltration into the sebaceous lymphadenoma with concurrent BM involvement was confirmed. MS is difficult to diagnose accurately; herein, we analyzed the clinical presentations and effectiveness of the various diagnostic methods with a review of the literature. There are 17 cases, including our case, reported in 13 studies. Of the cases in which the salivary glands were affected, 10 involved the parotid gland, six involved the submandibular gland, and one involved both. Isolated invasion of the salivary gland was found in one case of parotid gland invasion and three cases of submandibular gland invasion. In 13 cases, the salivary glands were affected by various other lesions. Although there were no incidences of isolated MS, six patients were diagnosed with secondary MS and eight patients with MS with BM involvement, including this case. The diagnosis of MS is difficult given its rarity, and a high index of suspicion and integrated radiologic and careful histopathologic evaluation are required. Most cases of MS infiltrating the salivary gland might be indicated by the possibility of BM involvement. MS with BM involvement predicts poor prognosis and the need for intensive systemic treatment.

scholarly journals Congenital Absence of the Right Pericardium: Embryology and Imaging

2015 ◽  
Vol 5 ◽  
pp. 12 ◽  
Author(s):  
Chi Wan Koo ◽  
Adrienne Newburg
Keyword(s):  
Case Reports ◽  
Congenital Absence ◽  
Imaging Findings ◽  
Diagnosis And Management ◽  
Radiologic Findings ◽  
Characteristic Imaging ◽  
Life Threatening ◽  
The Right ◽  
Comprehensive Discussion

Though congenital pericardial absence is often asymptomatic, complications can be life threatening. To date, few short case reports, primarily from the pre-CT and MR era, describe congenital absence of the right pericardium. We present a more comprehensive discussion of the embryologic derangements causing such defects and offer an up-to-date review of characteristic radiologic findings. Recognition of characteristic imaging findings of congenital pericardial absence is crucial in guiding diagnosis and management.

External auditory canal meningioma: imaging features in a series of three cases

2017 ◽  
Vol 131 (3) ◽  
pp. 273-279 ◽  
Author(s):  
J Dixon ◽  
I Zammit-Maempel ◽  
J Hill
Keyword(s):  
Temporal Bone ◽  
External Auditory Canal ◽  
Case Reports ◽  
Intracranial Meningioma ◽  
Imaging Features ◽  
Imaging Findings ◽  
Histological Findings ◽  
Radiological Findings ◽  
Direct Extension ◽  
Direct Spread

AbstractBackground:Direct extension of an intracranial meningioma to involve the temporal bone is rare. Recognised sites of origin and routes of access to the middle ear and labyrinthine apparatus have been described. Direct spread through the temporal bone to primarily involve the external auditory canal has not been widely reported in the literature.Case reports:This paper discusses clinical and radiological findings in three cases of temporal bone meningioma presenting as masses within the external auditory canal.Conclusion:Diagnosing temporal meningioma can be challenging because of its rarity and the often non-specific clinical and histological findings. It is important for both the surgeon and radiologist to be aware of the diagnosis and its related imaging findings in order to facilitate a timely diagnosis.

Cannabis-associated arteritis

VASA ◽  
2010 ◽  
Vol 39 (1) ◽  
pp. 43-53 ◽  
Author(s):  
Grotenhermen
Keyword(s):  
Systematic Review ◽  
Case Reports ◽  
Case Series ◽  
Cardiovascular Effects ◽  
Causative Factor ◽  
Cannabis Use ◽  
Thromboangiitis Obliterans ◽  
Pathological Features ◽  
Scientific Support ◽  
Clinical And Pathological Features

Background: To investigate the hypothesis that cases of arteritis similar to thromboangiitis obliterans (TAO) and associated with the use of cannabis were caused by cannabis or THC (dronabinol), or that cannabis use is a co-factor of TAO. Patients and methods: A systematic review on case reports and the literature on so-called cannabis arteritis, TAO, and cardiovascular effects of cannabinoids was conducted. Results: Fifteen reports with 57 cases of an arteritis associated with the use of cannabis and two additional case series of TAO, in which some patients also used cannabis, were identified. Clinical and pathological features of cannabis-associated arteritis do not differ from TAO and the major risk factor of TAO, tobacco use, was present in most, if not in all of these cases. The proposed pathophysiological mechanisms for the development of an arteritis by cannabis use are not substantiated. Conclusions: The hypothesis of cannabis being a causative factor or co-factor of TAO or an arteritis similar to TAO is not supported by the available evidence. The use of the term “cannabis arteritis” should be avoided until or unless more convincing scientific support is forthcoming.

scholarly journals Clinicopathological Features of Thymoma with Ring Calcification: Case Reports

2017 ◽  
Vol 23 (5) ◽  
pp. 256-261 ◽  
Author(s):  
Takeo Nakada ◽  
Tadashi Akiba ◽  
Mitsuo Yabe ◽  
Keiichiro Tanaka ◽  
Masataka Nakano ◽  
...  
Keyword(s):  
Case Reports ◽  
Clinicopathological Features

Fine-needle aspiration cytomorphology of sebaceous lymphadenoma of the salivary gland

2013 ◽  
Vol 42 (11) ◽  
pp. 959-963 ◽  
Author(s):  
Mark A. Vande Haar ◽  
Denise DeFrias ◽  
Xiaoqi Lin
Keyword(s):  
Salivary Gland ◽  
Fine Needle Aspiration ◽  
Needle Aspiration ◽  
Fine Needle ◽  
Sebaceous Lymphadenoma

Sclerosing Angiomatoid Nodular Transformation of the Spleen

2013 ◽  
Vol 137 (9) ◽  
pp. 1309-1312 ◽  
Author(s):  
Dinesh Pradhan ◽  
Sambit K. Mohanty
Keyword(s):  
Current Knowledge ◽  
Benign Lesion ◽  
Good Prognosis ◽  
Unknown Etiology ◽  
Age Group ◽  
Imaging Findings ◽  
Effective Technique ◽  
Sclerosing Angiomatoid Nodular Transformation ◽  
Malignant Lesions ◽  
Mitotic Figures

Sclerosing Angiomatoid Nodular Transformation (SANT) of the spleen is a rare benign lesion of the spleen with unknown etiology. SANT is classically considered to be a female-predominant disease, with most of the patients in the 30- to 60-year age group. Most lesions are found incidentally on imaging. Although SANT has specific imaging findings, the differential diagnosis from other splenic tumors or malignant lesions is very difficult. Histopathologically, these tumors reveal multiple confluent angiomatoid nodules; these nodules are surrounded by concentric collagen fibers exhibiting an inflammatory and myofibroblastic response and are accompanied by numerous erythrocytes and siderophages. The nodules are populated by endothelial cells, phenotypically recapitulating normal splenic vasculature, such as sinusoids, capillaries, and small veins. Nuclear atypia is minimal, mitotic figures are extremely rare, and necrosis is consistently absent. This lesion has a unique immunohistochemical profile characterized by CD34−CD31+CD8+ sinusoids, CD34+CD31+CD8− capillaries, and CD34−CD31+CD8− small veins. CD68 is positive in macrophages. Splenectomy is a useful and effective technique for the management of SANT. SANT patients have a good prognosis, with no recurrence after splenectomy. In this review, we discuss the current knowledge of SANT of the spleen and its clinical relevance.

Cardiac metastasis of osteosarcoma

Open Medicine ◽  
2010 ◽  
Vol 5 (5) ◽  
pp. 551-555
Author(s):  
Hilal Sahin ◽  
Naim Ceylan ◽  
Selen Bayraktaroglu ◽  
Recep Savas
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Case Reports ◽  
Primary Tumour ◽  
Cardiac Metastasis ◽  
Imaging Findings ◽  
Cardiac Metastases ◽  
Enhanced Computed Tomography ◽  
Demographic Features

AbstractCardiac osteosarcoma metastasis is extremely rare and is documented in several case reports in the literature. The behaviour of osteosarcoma metastases is similar to the primary tumour. Thoracic non-enhanced computed tomography (CT) examination is beneficial in the detection of calcific cardiac metastases. In this case report, we describe a 29-year-old woman with cardiac osteosarcoma metastasis after 7 years of follow-up, compare the demographic features with previous cases and discuss the imaging findings.

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