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Mature Cystic Teratoma AIRP Best Cases Radiologic Pathologic PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Mature Cystic Teratoma AIRP Best Cases Radiologic Pathologic articles that have been published worldwide.
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Editor's Note.-RadioGraphics continues to publish radiologic-pathologic case material selected from the American Institute for Radiologic Pathology (AIRP) "best case" presentations. The AIRP conducts a 4-week Radiologic Pathology Correlation Course, which is offered five times per year. On the penultimate day of the course, the best case presentation is held at the American Film Institute Silver Theater and Cultural Center in Silver Spring, Md. The AIRP faculty identifies the best cases, from each organ sys...
Editor's Note.-RadioGraphics continues to publish radiologic-pathologic case material selected from the American Institute for Radiologic Pathology (AIRP) "best case" presentations. The AIRP conducts a 4-week Radiologic Pathology Correlation Course, which is offered five times per year. On the penultimate day of the course, the best case presentation is held at the American Film Institute Silver Theater and Cultural Center in Silver Spring, Md. The AIRP faculty identifies the best cases from each organ syst...
Mature cystic teratoma of the pancreas is an extremely rare condition that is challenging to manage due to inadequate preoperative histological diagnosis.
A 23-year-old man presented with difficulty walking and leg pain and numbness. MRI revealed a cystic mass at Th11-12 and a pineal-region tumour. The patient underwent surgery to resect the thoracic-level mass. The tumour adhered strongly to the neural tissue and could only be partially resected. On pathological examination, the resected tumour was diagnosed as a mature teratoma. The tumour regrew and disseminated within 3 months after resection. Both the spinal cord tumour and the tumour in the pineal reg...
Malignant transformations of ovarian mature cystic teratomas (MCTs) occur rarely, especially in young women. Although it is extremely difficult to diagnose them, serum tumor marker level testing in combination with the use of imaging techniques may be useful in preoperative diagnosis.
We developed a radiologic-risk signature (RRS) that serves as a surrogate for the pathologic status of prostate cancer (PCA) and investigated its ability to predict disease-free survival.
Ovarian teratomas potentially demonstrate a wide range of tissue elements including central nervous system differentiation. The latter can include cerebellar tissue, which in our experience remains an under-recognized phenomenon. In the current study we present a review of 6 ovarian teratomas including 4 mature cystic teratomas and 2 immature teratomas showing cerebellar differentiation. Two cases were seen in consultation because the cerebellar elements were initially misinterpreted as immature teratomas. ...
Yolk sac tumor(YST) is a rare malignancy typically occurring in children. However, bilateral testicular YSTs are a quite rare situation, which can occur metachronously or synchronously with same histologic type, as well as different histology. We present a case of synchronous YST of the left testis and mature teratoma of the right in a 7-month-old infant treated with testis-sparing surgery at right testis and high radical orchiectomy at left. By follow-up of twenty eight-month, no atrophy or residual tumor ...
The purpose of this article is to investigate the radiologic and clinicopathologic findings of mucocelelike lesions (MLLs) and the rate of pathologic upgrade with factors predicting it.
Inflammation of the appendix is one of the most common conditions requiring emergent surgical intervention. Computed tomography commonly demonstrates a dilated appendix with adjacent inflammation. Traditionally, luminal obstruction of the appendix has been thought to be the primary etiology of appendicitis. However, current evidence suggests that etiology of appendicitis is multifactorial and can involve a number of different pathogenic pathways. Here we present a case of acute eosinophilic appendicitis wit...
Mature ovarian teratomas are common in children. These well-differentiated tumors are typically confined to the ovary. In rare cases, they can rupture leading to granulomatous peritonitis that mimics carcinomatosis. Ovarian tumors with peritoneal/omental implants suggest malignant pathology with different prognosis.
Adult brainstem gliomas are difficult to classify based on radiologic and histologic features. A K27M mutation in histone 3 has been described to identify high-grade midline gliomas associated with a particularly unfavorable prognosis. While initially considered a pediatric entity, it is now known that H3K27M-mutant brainstem gliomas occur in all age groups, but they are less well understood in adults. We studied clinical, radiologic, and pathologic features of 25 brainstem gliomas diagnosed at our institut...
Mature ovarian teratoma is the most frequent benign tumor in premenopausal women. It is usually asymptomatic but complications are possible such as adnexal torsion, infection, malignant transformation or cystic rupture. The latter can be spontaneous or more often occurs during surgery of excision of dermoid cyst. It can rarely result in chemical peritonitis, which is due to the irritation of the peritoneal serosa by the aseptic content of the tumour. We report the case of a patient who undrewent an emergenc...
Two patients were admitted to our department because of recent aggravation of claudication in the leg, which was exacerbated by walking. They were diagnosed as having a Baker cyst or acute thrombosis in the popliteal fossa at another hospital. There was no evidence of ischemia, and the ankle brachial index was normal. Computed tomography and magnetic resonance imaging were performed, revealing a cystic mass of the popliteal artery (PA). Intraoperatively, the cystic lesion was found within the adventitia of ...
The problems associated with the pathologic distinction of primary ovarian mucinous tumors from their metastatic counterparts are well-recognized. Herein, we systematically evaluate a variety of gross parameters to determine the combination of features that most optimally separate primary from secondary mucinous ovarian tumors, and to address the tumor types that are most frequently associated with exceptions. 129 consecutive mucinous tumors involving the ovary formed the study set, including 61 primary muc...
Recent molecular re-evaluation of Echinococcus granulosus, which causes cystic echinococcosis (CE), has revealed that it is not a single species, but instead consists of 5 cryptic species. Among them, E. granulosus (dog-sheep strain) is predominant (75%) followed by Echinococcus canadensis (22%). The major affected organs, in humans, are the liver (88%) and lungs (11%). Primary cerebral CE comprises less than 1% of all cases. As cerebral CE cases are rare, there are few reports with molecular confirmation o...
Papillary endothelial hyperplasia (PEH) is a rare non-neoplastic exuberant organizing hematoma that can closely mimic angiosarcoma due to a resemblance to malignant anastomosing blood vessels. It could be particularly difficult to distinguish PEH from angiosarcoma in breast core needle biopsies. We identified all cases of these lesions diagnosed on core needle biopsy in order to identify clinical, radiologic, and pathologic features that could prove helpful to arrive at the correct diagnosis. Four cases of ...
Tracheal adenoid cystic carcinoma (ACC) is rare and accounts for
There are three major pathologic patterns of pulmonary fibrosis; usual interstitial pneumonia (UIP), nonspecific interstitial pneumonia (NSIP) and airway-centered fibrosis (ACF). These pathologic patterns correspond with radiographic patterns of UIP, NSIP, and chronic hypersensitivity pneumonitis (CHP). Previous studies have demonstrated that the radiologic diagnosis is correct approximately 50% of the time for these fibrotic lung diseases. Understanding the microscopic pathologic patterns that are recapitu...
Postural drainage is used primarily in infants with cystic fibrosis from diagnosis up to the moment when they are mature enough to actively participate in self-administered treatments. However, there is a risk of gastroesophageal reflux associated with this technique.This is an update of a review published in 2015.
We describe a 24-year-old man with a cystic hygroma of the left side of the lower neck that led to sudden death. Cystic hygroma (cystic lymphangioma) is a congenital malformation of the lymphatic system. The patient, who had a tracheostomy because of airway obstruction from the cystic hygroma, was found dead with his tracheostomy tube on the floor next to him. Complications of cystic hygroma include infiltration of the neck causing airway obstruction, dysphagia, pain, and obstructive sleep apnea.
Individuals diagnosed with cystic fibrosis (CF) as adults represent a growing sub-population of CF cases but there are limited studies describing their characteristics and prognosis.
Genomic imprinting is the process of epigenetic modification whereby genes are expressed in a parent-of-origin dependent manner; it plays an important role in normal growth and development. Parthenogenetic embryos contain only the maternal genome. Parthenogenetic embryonic stem cells could be useful for studying imprinted genes. In humans, ovarian mature cystic teratomas originate from parthenogenetic activation of oocytes; they are composed of highly differentiated mature tissues containing all three germ ...
Nasopharyngeal carcinoma (NPC) with cystic liver metastases is so rarely observed that there are only three cases reported in the published literature.