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2022 ◽  
pp. 278-289
Author(s):  
Konstantinos Asikis ◽  
Ioannis Nakas

ISO and ITU propose some classifications regarding the smart sustainable cities services: energy, transport, health, tourism, education, safety, environment, governance, commerce, buildings, community. Culture and heritage is a rare category in these classifications, despite the fact they have to be always been included in an SSC ecosystem. They could play a key role in achieving the 17 SDGs due to some critical reasons: their deep roots in humanity, their wide spread across city life and environment, hence their horizontal connections with all the other SSC categories. There are many options of SSC structures, which have the potential to be dedicated on culture and heritage. QR codes, GIS., VR, apps, IoT, virtual events are some of them, widely implemented by cities. Via these ways, culture and heritage could 1) contribute to the humans' welfare index and 2) interact with the other sectors of the city ecosystem. Their added value to the sustainability process creates the necessity to be a distinctive category in international SSC classifications.


Medicina ◽  
2021 ◽  
Vol 57 (12) ◽  
pp. 1345
Author(s):  
Mircea Nicolae Brătucu ◽  
Virgiliu-Mihail Prunoiu ◽  
Victor Strâmbu ◽  
Eugen Brătucu ◽  
Maria-Manuela Răvaş ◽  
...  

We here draw attention to a practical issue: the approach to certain unusual gastric ulcers with haemorrhage- or perforation-induced complications. This category of ulcers, i.e., giant (over 2–3 cm) and multiple ulcers, is rarely encountered. We discuss the circumstances determining the occurrence of such lesions, their diverse aetiology and pathogenesis, their common manifestations, and the severity of their evolution. Some of the lesions are benign (chronic or acute ulcers), whereas others are neoplastic: carcinoma, stromal tumours, and lymphomas. In gastric ulcers, the characteristics of this particular and rare category of lesions strictly places them in the surgical field, requiring primary surgical intention. Conservative treatments are not effective in such cases, and preoperative biopsies are not appropriate for emergency interventions. Whether these unusual ulcers are benign or malign, they need to be surgically removed.


2021 ◽  
Author(s):  
wei wu ◽  
yibo wu ◽  
weijue xu ◽  
jiangbin liu ◽  
zhibao lv

Abstract BackgroundWilms tumor (WT) is the most common renal tumor in the pediatric population. Nevertheless, teratoid Wilms tumor (TWT) is a rare category of WT characterized by different tissue types, and fewer than 40 cases have been reported in the literature to date. Methods A total of 67 WT patients admitted in our hospital from 2010 to 2020, including 5 patients with TWT, were enrolled in this study. The clinical features, preoperative and postoperative chemotherapeutic regimens, intraoperative findings, histopathological information, as well as prognoses of the WT patients were evaluated. ResultsTWT cases were matched to classical WT cases at 1:3 for the comparison of various variables. 7.46% (5/67) of WT patients were diagnosed with TWT. the tumor volume was dramatically larger for patients with TWT than for those with classical WT (203.30 ± 109.89 cm3 vs. 104.30 ± 66.97 cm3). However, the tumor weight of the two groups was similar (471.00 ± 80.65 vs. 432.67 ± 109.25). ConclusionsOur data with the first reported Chinese children with TWT, preliminarily demonstrated that chemotherapy combined with surgery might be the appropriate treatment option for patients with WT, and prognoses of these patients differed sharply due to various stages. The density of TWT might be lower than that of classical WT. Future studies with more basic research to understand the biologic nature and theranostic markers of teratoid WT, may help us optimize the patient-tailored therapy of this rare type of WT.


Author(s):  
Aijuan Qian ◽  
Xiaoju Dong ◽  
Yanling Zhang ◽  
Chenlu Li
Keyword(s):  

2021 ◽  
Author(s):  
Zuo-run Xie ◽  
Hong-Cai Wang ◽  
Yi-Lei Tong ◽  
Shi-Wei Li ◽  
Mao-Song Chen ◽  
...  

Abstract Meningiomas are the commonest benign intracranial tumors and frequently present with a gradual onset of neurological deficits; however, their acute presentation with hemorrhagic onset appears to be a rare event. Nonetheless, because the mainstay of treatment is early surgical evacuation, prompt diagnosis of this rare category of intracranial hemorrhage is imperative. The purpose of this single-center study was to investigate the radiological characteristics and proposed a new bleeding classification for guiding diagnosis and treatment. A total of 19 consecutive patients diagnosed with hemorrhagic meningioma were enrolled in this retrospective study. Intracranial extra-axial mass, tumor-associated hemorrhage, and peritumoral brain edema were the three main radiological features. The site of tumor-associated hemorrhage included peritumoral space, subarachnoid space, subdural space, brain parenchyma, and/or intratumor. Based on the anatomical relationship between meningioma and hematoma, the spontaneous hemorrhage stemming from meningiomas were further summarized into three bleeding patterns involving purely intratumoral hemorrhage (type I), purely extratumoral hemorrhage (type II), and combined intra/extratumoral hemorrhage (type III); moreover, the type III hemorrhage usually came from the type I bleeding that extended into the surrounding regions. The symptoms in type I patients were generally mild, and early surgery was performed following adequate preoperative evaluations; the symptoms in type II patients were sometimes mild and may be sometimes moderate to severe, so early or emergency surgery was chosen according to the patients’ clinical statuses; almost all type III patients had moderate to severe symptoms, and these patients usually needed emergency surgery. In addition, the patients with different bleeding types may have different pathological mechanisms underlying the bleeding. Apart from being convenient for diagnosis, this concise and practical bleeding classification could offer some implications for the treatment strategy and facilitate understanding of the associated mechanisms.


2021 ◽  
pp. 41-42
Author(s):  
Anshu Jamaiyar ◽  
Joyeeta Mandal ◽  
Anupriya Anupriya

Mixed germ cell tumours of testis represent a comparatively rare category of testicular tumour where different types of both seminomatous and non-seminomatous tumours can be present in varied proportions. We report two cases of mixed germ cell tumours, one consisting of seminoma, embryonal carcinoma and post-pubertal teratoma in the testis of a 22-year-old male and second consisting of a yolk sac tumour and immature teratoma in the testis of a 19-year-old male. We report theses case due to the rare combination and for documentation


Author(s):  
Roya Sattarzadeh ◽  
Saeed Ghodsi ◽  
Masoud Eslami ◽  
Reza Mollazadeh ◽  
Reza Safaei Nodehi ◽  
...  

Cutaneous T-cell lymphomas constitute a rare category of non-Hodgkin lymphomas, which may involve the heart in the timeline of their natural course as an infrequent picture with a poor prognosis. Syncope, either due to outflow obstruction or conduction block, is also an uncommon presentation of cardiac metastasis. We herein describe a 35-year-old man, who presented with weight loss, dyspnea of 6 months’ duration, an indolent skin ulcer in the left flank, lower limb deep vein thrombosis (DVT), and recurrent syncope. He underwent implantation of a permanent pacemaker due to a complete heart block and received anticoagulants for the DVT. Skin biopsy demonstrated a T-cell lymphoma. The syncopal episodes ceased thereafter. Echocardiography and computed tomography scan revealed cardiac metastasis, which responded to systemic chemotherapy. In the first follow-up visit after 3 months, he was still pacemaker-dependent. However, the DVT was partially resolved, and the symptoms had disappeared.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sawsan Ismail ◽  
Munawar Hraib ◽  
Rana Issa ◽  
Thanaa Alassi ◽  
Zuheir Alshehabi

Abstract Background Ovarian steroid cell tumors represent a rare category of sex cord-stromal tumors that constitute less than 0.1% of all ovarian tumors. These neoplasms are classified into three main subtypes according to the cell of origin: Leidyg cell tumors, stromal luteomas, and steroid cell tumors not otherwise specified (SCTs-NOS). The latter subtype is defined as a neoplasm of an uncertain lineage that mostly affects middle-aged women, whereas it’s rare in younger ages. Case presentation We report a case of a 21-year-old virgin female who presented to our hospital with complaints of mild abdominal pain, hirsutism, and oligomenorrhea for more than a year. Before her current admission, the patient had attended an external gynecologic clinic where she had been prescribed oral contraceptives to regulate her periods. Nevertheless, on presentation to our institution, physical examination revealed abdominal tenderness with a palpable pelvic mass and mild hirsutism in the thigh. Ultrasonography demonstrated a large left ovarian mass measuring 154 × 104 mm, and compressing the uterus. Therefore, a unilateral salpingo-oophorectomy was performed, and interestingly, pathologic examination of the large aforementioned mass alongside with immunohistochemical correlation revealed the diagnosis of a large ovarian steroid cell tumor-not otherwise specified with a unique combination of benign and malignant features. Conclusions Although ovarian steroid cell tumors represent a rare category, they must be considered in the differential diagnosis for mild virilization symptoms in young females due to the importance of early diagnosis and management. In this manuscript, we aimed to present the first case report from Syria that highlights the crucial role of detailed morphological examination for challenging cases despite the difficulties in differential diagnosis, and the absence of ancillary techniques. Furthermore, we managed to discuss a brief review of diagnostic methods, histological characteristics, and treatment recommendations.


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