Publications by authors named "John J Nelson"
Article Synopsis
- Leiomyomas are benign smooth muscle tumors often found in premenopausal women, but this case presents a rare instance in a 58-year-old male who experienced abdominal pain.
- A CT scan identified multiple masses in the left lower quadrant of the abdomen, leading to a laparotomy and biopsy that confirmed the presence of leiomyomas.
- The histopathological analysis showed characteristics consistent with benign leiomyomata, emphasizing the rarity of such tumors in males and their potential role in causing abdominal discomfort.
Purpose: The aim of the present immunohistological investigation was to define and compare the osteogenic potential with the vascularization of the provisional matrix in grafted and ungrafted extraction sockets after 4 and 12 weeks of healing.
Methods: A total of 33 Patients (15 women, 18 men) with 65 extraction sites with a mean age of 54.4 years (30-73 years) participated in this study.
Healing of ungrafted and grafted extraction sockets after 12 weeks: a prospective clinical study.
Int J Oral Maxillofac Implants
October 2011
Purpose: In this prospective study, bone formation in human extraction sockets augmented with Bio-Oss Collagen after a 12-week healing period was quantified and compared to bone formation in unaugmented extraction sockets.
Materials And Methods: Selected patients with four-walled extraction sockets were included in this prospective study. After extraction, the sockets were randomly augmented using Bio-Oss Collagen or left to heal unfilled without raising a mucoperiosteal flap.
Purpose: The aim of the present clinical study was the evaluation of the osteogenic potential of mesenchymal cells embedded in the provisional matrix of non-augmented and with Bio-Oss collagen-augmented human extraction sockets after 6 weeks of healing time.
Methods: Twenty-five patients with 47 extraction sites participated in the present study. After tooth removal, the extraction sockets were augmented with Bio-Oss collagen or not augmented.
Edwardsiella tarda, a member of the family Enterobacteriaceae found in aquatic environments, is an unusual cause of human disease, presenting most frequently as gastroenteritis. Extraintestinal manifestations of E. tarda infection are rare but have included meningitis, cholecystitis, endocarditis, osteomyelitis, soft tissue infections, bacteremia, and septicemia.
View Article and Find Full Text PDFPurpose: In this prospective study, solid monocortical iliac onlay grafts of the maxilla were randomly covered with a bioresorbable membrane and periosteum within the maxilla. Histologic specimens were analyzed by light microscopy after a healing period of three months and the rate of resorption of the grafts were measured.
Materials And Methods: Fourteen patients (9 females and 5 males), with a mean age of 56 years (range 25-72) underwent augmentation with avascular iliac onlay bone grafts.
The case of a 53-year-old female with abdominal pain is presented. Abdominal ultrasound was unremarkable, a HIDA scan demonstrated biliary dyskinesia, and a computed tomography scan of the abdomen and pelvis revealed an intraluminal gallbladder hyperdensity suspicious for a gallstone. A laparoscopic cholecystectomy was performed and, on pathologic examination, no gallstones were present.
View Article and Find Full Text PDFBackground: The diagnosis of linitis plastica-type adenocarcinomas of the stomach has traditionally been made by brush cytology and mucosal biopsy. These techniques may yield false negative results due to the often submucosal location of these lesions.
Case: A 46-year-old woman presented witb epigaseric abdominal pain and loss of abbetite.
The protozoan Giardia lamblia is a major cause of gastrointestinal disease worldwide. We report the case of a 59-yr-old male who presented to his primary care physician with complaints of abdominal pain and weight loss. Imaging studies revealed a liver mass and a pancreatic head mass.
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