Surgical considerations in the resection of solitary fibrous tumors of the pleura.

Solitary fibrous tumors (SFTs) are rare mesenchymal pleural neoplasms with an overall good prognosis and low recurrence rate if completely resected and if degree of differentiation is favorable. Within the last decade, advances in research have led to more reliable methods of differentiating SFTs from other soft tissue tumors. Historically, several markers were used to distinguish SFTs from similar tumors, but these markers had poor specificity.

Superior mesenteric artery thrombosis in a patient with COVID-19 pneumonia and .

COVID-19, a novel respiratory viral illness, has spread globally and led to over 111 million cases worldwide. Most commonly, patients present with respiratory symptoms, and those with increased severity progress to acute hypoxic respiratory failure. Additionally, a portion of patients are noted to have coagulopathy and are considered to be at an increased risk for thromboembolic events.

Primary small bowel adenocarcinoma with loss of nuclear expression of PMS2 after resection of mucinous cholangiocarcinoma.

Mucinous cholangiocarcinoma is an extremely rare form of intrahepatic cholangiocarcinoma that has been characterized by rapid growth, widespread metastasis and poor prognosis. These tumors have been shown to be a part of the Lynch syndrome tumor spectrum, however, the role of DNA mismatch repair (MMR) deficiency in their development is poorly understood. We present the case of a 74-year-old male with cholangiocarcinoma, who underwent Roux-en-Y hepaticojejunostomy and extended left hepatectomy and was diagnosed with a primary small bowel adenocarcinoma 2 years later.

Erratum to: Hepatocellular carcinoma with extrahepatic blood supply from right renal artery.

[This corrects the article DOI: 10.1093/jscr/rjab391.].

Hepatocellular carcinoma with extrahepatic blood supply from right renal artery.

Extrahepatic blood supply is seen in around 17-27% of hepatocellular carcinoma lesions. Evidence suggests that this extrahepatic supply most commonly originates from a right intercostal artery (70-83%) followed by left intercostal, omental and right renal arteries. Thus a comprehensive knowledge of variations in standard vascular anatomy and cognisance of factors influencing or predicting extrahepatic blood supply in HCC is instrumental in ensuring the success of surgical and interventional procedures.

Laparoscopic repair of incarcerated transverse colon internal hernia in a patient with Crohn's disease.

Internal hernia is a rare cause of bowel obstruction in patients with no prior surgical history. Laparoscopic repair of a transverse bowel herniation through the foramen of Winslow is the rarest type of internal hernia, with only two case reports published in the literature. In a patient with a history with Crohn's disease and no prior surgical history, presenting with signs of bowel obstruction, and no inflammatory symptoms, internal hernia should be suspected as one of the causes.

ASSESSING THE KNOWLEDGE, ATTITUDES AND PRACTICES OF SCHOOL TEACHERS REGARDING DYSLEXIA, ATTENTION-DEFICIT/ HYPERACTIVITY AND AUTISTIC SPECTRUM DISORDERS IN KARACHI, PAKISTAN.

Background: Learning impairments in children consist of a spectrum of disorders that are under diagnosed in Pakistan. Most learning disorders have long term consequences for a child and early detection is thus imperative. Teachers may be able to play a key role in such identification.