scholarly journals A Reliable Surgical Procedure for Sinus Floor Augmentation with Antral Pseudocysts

2021 ◽  
Vol 9 (10) ◽  
pp. 122
Author(s):  
Yasuhiro Nosaka ◽  
Hitomi Nosaka ◽  
Yasushi Nakajima ◽  
Tadasuke Tanioka ◽  
Daniele Botticelli ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Correct Diagnosis ◽  
Inflammatory Cells ◽  
Histological Evaluation ◽  
Histopathological Diagnosis ◽  
Cystic Lesions ◽  
Two Stage ◽  
Asymptomatic Patients ◽  
Sinus Floor Augmentation ◽  
Sinus Floor

An antral pseudocyst (AP) is a common well-defined ‘dome-shaped’ faintly radiopaque lesion of the maxillary sinus, and usually does not require treatment in asymptomatic patients. However, when sinus floor augmentation is required to increase bone volume for implant installation, the elevation of the sinus mucosa might drive the AP against the ostium. This might cause its obstruction and, as possible consequence, sinusitis. The purpose of this study was to investigate the clinical and tomographic conditions of APs to identify a predictable cyst removal that might allow a safety sinus floor augmentation. A total of 52 maxillary sinuses in 46 patients (mean age 55.1 years) presenting AP were examined by cone beam computed tomographies (CBCTs). A two-stage approach was applied. At the first surgery, the cystic lesions were further inspected by an endoscope through the antrostomy, and histopathological diagnosis of the removed tissues was carried out. After the confirmation of decrease of the swelling of sinus membrane by CBCT, the sinus floor augmentation was performed, at least four months after cyst removal. The color and transparency of the 86 cystic lesions were classified into 4 types. The whitish transparent cysts were 34 (39.5%), the yellowish transparent cysts were 18 (20.9%), the dark purple transparent cysts were 8 (9.3%) and the milky-white opaque cysts were 26 (30.2%). The contents of the 60 (69.8%) transparent cysts were serous fluid, but those of milky-white cysts were composed of viscous or elastic soft tissues, and the aspiration of the contents was unsuccessful. The analysis of the preoperative CBCT did not provide certainty on the contents of the cystic lesions. All cystic lesions were diagnosed as AP, and an infection was identified in one AP, presenting marked infiltration of the inflammatory cells. Considering the difficulties of performing a correct diagnosis of the AP content by a CBCT analysis, the risk of failure of the surgery that creates severe afflictions to the patients, and the necessity of a histological evaluation of the cyst, a two-stage surgery appeared to be the most reliable procedure.

scholarly journals Diagnosis and surgical treatment of mucocele: Clinical case report

2021 ◽  
Vol 10 (8) ◽  
pp. e19010817289
Author(s):  
Thais Maibashi Minomi ◽  
Vinícius Franzão Ganzaroli ◽  
Daniela Ponzoni
Keyword(s):  
Spontaneous Rupture ◽  
Clinical Case ◽  
Soft Tissues ◽  
Surgical Excision ◽  
Inflammatory Cells ◽  
Surgical Removal ◽  
Histopathological Diagnosis ◽  
Lower Lip ◽  
Safe Technique ◽  
Local Surgical Excision

Mucoceles are benign pseudocystic lesions, whose main etiological factors are trauma and ductal obstruction, with the rupture of a duct in the salivary gland and leakage of mucin into the adjacent soft tissues. They are characterized by being asymptomatic and often present spontaneous rupture. Histologically, they are made up of a cystic wall devoid of epithelium, outlined by granulation tissue and inflammatory cells. Mucoceles usually present as dome-shaped mucous swellings, which can vary in size from 1 to 2 mm to a few centimeters, characterized as a floating lesion, although some may be firm on palpation. The evolution time reported for this lesion varies from a few days to several years, and the most common site of involvement for this phenomenon is the lower lip. Some mucoceles are self-limiting, with spontaneous rupture and scarring, however, many of these lesions are chronic in nature, and local surgical excision may be necessary. The aim of this study was report a clinical case of mucocele on the lower lip. The surgical removal of the mucocele proved  to be an effective and safe technique in the case in question, enabling the histopathological diagnosis of the lesion.

Monophasic ß-TCP vs. biphasic HA/ß-TCP in two-stage sinus floor augmentation procedures - a prospective randomized clinical trial

2016 ◽  
Vol 28 (10) ◽  
pp. e175-e183 ◽  
Author(s):  
Damir Jelusic ◽  
Matthias L. Zirk ◽  
Tim Fienitz ◽  
Darije Plancak ◽  
Ivan Puhar ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Two Stage ◽  
Prospective Randomized Clinical Trial ◽  
Sinus Floor Augmentation ◽  
Sinus Floor

scholarly journals Simple mucinous cyst: another potential cancer precursor in the pancreas? Case report with molecular characterization and systematic review of the literature

2021 ◽  
Author(s):  
Anna Caterina Milanetto ◽  
Alice Sabrina Tonello ◽  
Giovanni Valotto ◽  
Giada Munari ◽  
Claudio Luchini ◽  
...  
Keyword(s):  
Systematic Review ◽  
Pancreatic Cancer ◽  
English Literature ◽  
Correct Diagnosis ◽  
The Body ◽  
Cystic Lesions ◽  
Tail Region ◽  
Asymptomatic Patients ◽  
Gastric Type ◽  
Mucinous Cyst

AbstractCystic lesions of the pancreas may range from benign to precursors of pancreatic cancer. Simple mucinous cyst (SMC) is larger than 1 cm, has a gastric-type flat mucinous lining, and minimal atypia without ovarian-type stroma. We report a new case of pancreatic SMC, coupling a systematic review of the English literature mainly focused on their clinic-pathological features. We reviewed 103 cases of SMC in adults (73 women), averaging 57 (range, 26–70) years. The SMCs were located in the body-tail region of the pancreas in 60 (58%) cases, presenting as single cystic lesions in 94% of cases; 43% of patients were asymptomatic. A preoperative fine-needle aspiration of the cyst fluid detected amylase and carcinoembryonic antigen positivity in 71% and 76% of cases, respectively. Patients underwent surgery mostly for suspected malignancy; in 83% of cases, a standard pancreatic resection was performed. Mean SMC size was 4.9 (range, 1.5–12.0) cm. Mucins MUC5AC and MUC6 resulted positive in 77% and 81% of cases performed, respectively, whereas MUC2 was negative in all but one patient. The SMC from our institution was characterized by a KRAS somatic mutation. The diagnosis of SMC should be considered when a solitary pancreatic cyst larger than 1 cm is detected in asymptomatic patients. To establish a correct diagnosis, an extensive histologic/immunohistochemical analysis is essential. The presence of a KRAS mutation highlights that SMC may represent another potential pancreatic cancer precursor.

scholarly journals The Whitening Effect and Histological Safety of Nonthermal Atmospheric Plasma Inducing Tooth Bleaching

2021 ◽  
Vol 18 (9) ◽  
pp. 4714
Author(s):  
Seoul-Hee Nam ◽  
Byul Bo Ra Choi ◽  
Gyoo-Cheon Kim
Keyword(s):  
Alternative Energy ◽  
Soft Tissues ◽  
Inflammatory Responses ◽  
Color Change ◽  
Atmospheric Pressure Plasma ◽  
Atmospheric Plasma ◽  
Tooth Bleaching ◽  
Histological Evaluation ◽  
Light Sources ◽  
Tooth Color

Various light sources have been applied to enhance the bleaching effect. This study was to identify the histological evaluation in oral soft tissues, as well as tooth color change after tooth bleaching by nonthermal atmospheric pressure plasma (NAPP). Nine New Zealand adult female rabbits were randomly divided into three groups (n = 3): group 1 received no treatment; group 2 was treated with NAPP and 15% carbamide peroxide (CP), which contains 5.4% H2O2, and group 3 was treated with 15% CP without NAPP. Color change (ΔE) was measured using the Shade Eye NCC colorimeter. Animals were euthanized one day later to analyze the histological responses occurring in oral soft tissues, including pulp, gingiva, tongue, buccal mucosa, and hard and soft palates. Changes in all samples were analyzed by hematoxylin and eosin staining and Masson’s trichrome. Teeth treated with plasma showed higher ΔE than that obtained with bleaching agents alone. Overall, the histological characteristics observed no appreciable changes. The combinational treatment of plasma had not indicated inflammatory responses as well as thermal damages. NAPP did not cause histological damage in oral soft tissues during tooth bleaching. We suggest that NAPP could be a novel alternative energy source to conventional light sources for tooth bleaching.

scholarly journals Late recovery from foreign body sinusitis after maxillary sinus floor augmentation

2012 ◽  
Vol 2012 (dec11 1) ◽  
pp. bcr2012007434-bcr2012007434 ◽  
Author(s):  
G. Felisati ◽  
A. M. Saibene ◽  
R. Lenzi ◽  
C. Pipolo
Keyword(s):  
Foreign Body ◽  
Maxillary Sinus ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Late Recovery ◽  
Maxillary Sinus Floor Augmentation
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