scholarly journals Cerebellar pilomyxoid astrocytoma

2015 ◽  
Vol 29 (4) ◽  
pp. 481-486
Author(s):  
Somnath Sharma ◽  
Bal Krishan Ojha ◽  
Anil Chandra ◽  
Sunil Kumar Singh ◽  
Chhitij Srivastava ◽  
...  

Abstract Pilomyxoid astrocytomas (P.M.A) are new class of Pilocytic Astrocytoma (P.A.) which typically have their origin in hypothalamus and chiasmatic region. There are very few case reports of PMAs arising from cerebellum. Their imaging features are similar to PA but they behave more aggressively than PA. The authors report a case of 10 year old male child who presented with right cerebellar tumour diagnosed as PMA on histopathology.

Pilomyxoid astrocytoma (PMA) is an atypical subtype of pilocytic astrocytoma (PA), which presents in children and young adults. The incidence of PMA is low, so there is no standardized treatment protocol for it. Here, we present a 62-year-old woman with recurrent PMA, which is important for the understanding and treatment of the disease.


2019 ◽  
Vol 19 (1) ◽  
pp. 37-41
Author(s):  
Salem A Beshyah ◽  
Brian M Frier

Diabetic ketoacidosis (DKA) is a life-threatening metabolic derangement, defined by the presence of severe hyperglycaemia, ketosis and metabolic acidosis. Recently, DKA was redefined to be present when the latter two abnormalities occur without severe hyperglycaemia. Munro and colleagues in Edinburgh described ‘euglycaemic diabetic ketoacidosis’ in 1973 and suggested this new terminology. The same year the critical feature of this subclass of DKA – that is, an increased urinary loss of glucose – was identified by Ireland and Thomson in Glasgow. In the subsequent 40 years (from 1974 to 2014), clinical interest in this condition was limited to a few case reports. The emergence of a new class of antidiabetes medications, the sodium-glucose cotransporter (SGLT) inhibitors, which promote profuse glycosuria, has reawakened interest in euglycaemic DKA, as this is a side effect of these drugs. The earlier perceptive observations of these physicians in Scotland deserve to be recognised for their contribution in identifying and describing euglycaemic DKA and correctly identifying its underlying pathogenesis. Recent international consensus has provided guidance to physicians to aid timely recognition of the condition by testing for ketosis in the appropriate clinical context and to manage it effectively by discontinuing the SGLT inhibitor and provision of insulin, carbohydrate and hydration (the STICH protocol). This may be particularly relevant in view of the recent licensing developments for use of certain members of the SGLT inhibitors in type 1 diabetes.


Author(s):  
Junhan Pan ◽  
Manhua Zhu ◽  
Weili Han ◽  
Feng Chen

Background: Lung transplantation might be a viable alternative for patients with irreversible lung injury secondary to coronavirus disease 2019 (COVID-19). Here, we describe two patients with end-stage COVID-19 that received lung transplantations, the clinical-radiologic manifestations of post-operative complications, and the imaging features of allograft rejection. Case presentation: Case 1, a 66-year-old woman presented severe hypoxia after lung transplantation. Chest imaging revealed diffuse homogeneous infiltration in the donor lung. Dramatic resolution of the imaging abnormalities after intravenous administration of methylprednisolone favored a diagnosis of hyperacute rejection. The second is a 70-year-old man, who was infected with bacterial postoperatively. During the empiric antibiotic therapy, chest CT showed newly developed ground glass opacities with septal thickening, suggesting a diagnosis of acute rejection. High-dose corticosteroids therapy was initiated, and the patient recovered gradually. Conclusion: This is the first report describing post-operative complications of lung transplantation in patients with advanced COVID-19. We presumed that imaging procedures could be a useful tool in early detecting lung transplant complications and selecting specific interventions for patients with COVID-19.


PEDIATRICS ◽  
1963 ◽  
Vol 31 (5) ◽  
pp. 883-883
Author(s):  
MELVIN S. KRUGLY

I received a letter from Dr. Walton M. Edwards, requesting us to acknowledge his report of an xanthogranuloma in the retroperitoneal space as the second case in the pediatric literature. Since our paper, "Retroperitoneal Xanthogranuloma"(Pediatrics, 30:608, 1962) was submitted for publication this paper by Captain Douglas H. Sandberg, M.C., and Colonel Walton M. Edwards, M.C., appeared in the British Journal of Urology, 34:47, 1962, reporting a case of xanthogranuloma of the retroperitoneal space in a 3-year-old male child. Our case is therefore the third to be reported in the pediatric age group and not the second as we reported.


2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Kazuki Yoshida ◽  
Masao Miyagawa ◽  
Teruhito Kido ◽  
Kana Ide ◽  
Yoshifumi Sano ◽  
...  

Birt-Hogg-Dubé syndrome (BHD) is a rare autosomal dominant disease characterized by skin fibrofolliculomas, pulmonary cysts, spontaneous pneumothoraces, and renal cancers. Oncocytomas are benign epithelial tumors that are also rare. Recently, there have been a few case reports of BHD with a parotid oncocytoma that appears to have a BHD phenotype. Here we document the eighth known case and describe the magnetic resonance imaging features of the parotid oncocytoma, which mimicked Warthin’s tumor. Radiologists should be aware of the association between these rare disorders.


2016 ◽  
Vol 40 (4) ◽  
pp. 583-586 ◽  
Author(s):  
Jeongin Yoo ◽  
Sung Bin Park ◽  
Mack Shin ◽  
Eun Sun Lee ◽  
Hyun Jeong Park ◽  
...  

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
De-jun She ◽  
Yi-ping Lu ◽  
Ji Xiong ◽  
Dao-ying Geng ◽  
Bo Yin

2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Yaotse Elikplim Nordjoe ◽  
Suzanne Rita Aubin Igombe ◽  
Fatima Zahra Laamrani ◽  
Laila Jroundi

Abstract Background Pituitary abscess is a rare condition with nonspecific symptoms that can be delayed. Proper diagnosis needs to occur preoperatively so that the management can be set up accordingly. Accurate diagnosis is challenging because many differential diagnoses can exhibit the same magnetic resonance imaging features. Case presentation We report two cases of pituitary abscess. The first patient was a 66-year-old Arab woman who underwent a surgical procedure for a pituitary macroadenoma and presented 3 months later with chronic headaches and panhypopituitarism. A pituitary abscess was found on the follow-up magnetic resonance imaging. The second patient was a 64-year-old Arab man with no medical history who presented with a chiasmal syndrome with headaches and panhypopituitarism. Brain magnetic resonance imaging showed a heterogeneous pituitary mass that turned out to be a pituitary abscess intraoperatively. These two patients were treated with hormone substitution, endoscopic transsphenoidal drainage, and antibiotherapy, with excellent outcomes. Conclusions Pituitary abscess is a rare and serious condition. Preoperative diagnosis can be challenging because of the many existing differential diagnoses upon imaging. Magnetic resonance imaging is the mainstay technique of imaging due to its multimodal nature. These cases demonstrate the variable patterns of a pituitary abscess seen on magnetic resonance imaging and the potential difficulties in achieving an accurate diagnosis preoperatively due to many other conditions potentially exhibiting the same magnetic resonance imaging features.


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