scholarly journals Histological Comparison of Testicular Needle Biopsy and En Bloc Samples in Abattoir Calves

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 918
Author(s):  
Maike Rohländer ◽  
Henning Otzen ◽  
Kristina Rode ◽  
Klaus Jung ◽  
Marion Schmicke ◽  
...  
Keyword(s):  
Cross Sections ◽  
Needle Biopsy ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Sample Collection ◽  
En Bloc ◽  
Significance Level ◽  
Inner Diameter ◽  
The Individual ◽  
The Right

The aim of this study was to test whether a single testicular needle biopsy could provide histological results comparable to en bloc resection histology and whether one biopsy was sufficient to reflect the histology of an entire pair of testicles. Two methods of sample collection were tested on 32 bull calves aged five to eight months to compare histological parameters of needle biopsy with those of en bloc resection samples. One testicular needle biopsy of the right and three en bloc samples of both testicles were collected and compared for the number of tubular cross sections, tubules with elongated spermatids (ES), outer/inner diameter of tubules, thickness of tubular wall, and number of Sertoli cells (SC). Additionally, animal data were considered. No significant differences were found between the left and right testis or among the individual locations of en bloc samples. However, histologically significant differences (Bonferroni-adjusted significance level: p < 0.05/6 = 0.0083) were found between the needle biopsy and en bloc resection regarding the tubular cross sections per visual field (p < 0.05), the outer (p = 0.01) and inner diameter and the thickness of the tubular wall (both p < 0.01). In the SOX9 immunohistochemical staining, no significant differences (p > 0.05) could be observed for SC numbers between needle biopsy and en bloc samples. In conclusion, results of testicular needle biopsy do not have the same validity as the en bloc resection histology. Furthermore, one biopsy is insufficient to reflect the histology of the entire testicular pair.

scholarly journals A Giant retroperitoneal liposarcoma encasing entirely the right kidney: A case report and a review of nephrectomy indications

2021 ◽  
Author(s):  
Houssem Harbi ◽  
Amira Akrout ◽  
Mohamed Fourati ◽  
Amine Zouari ◽  
Nozha Toumi
Keyword(s):  
Elderly Patient ◽  
Case Report ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Resection Margins ◽  
En Bloc ◽  
Retroperitoneal Liposarcoma ◽  
R1 Resection ◽  
The Right

A 68-year-old female was operated for a giant dedifferentiated retroperitoneal liposarcoma (RLS) encasing entirely the right kidney. She had an en-bloc resection of the tumor with right nephrectomy. The en-bloc resection should avoid R1 resection margins. Renal conservation is suggested if the kidney is widely displaced and for elderly patient.

scholarly journals Effectiveness of S-O Clip-Assisted Colorectal Endoscopic Submucosal Dissection

2021 ◽  
Vol 11 (1) ◽  
pp. 141
Author(s):  
Haruka Fujinami ◽  
Akira Teramoto ◽  
Saeko Takahashi ◽  
Takayuki Ando ◽  
Shinya Kajiura ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Resection Rate ◽  
Right Colon ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Colorectal Endoscopic Submucosal Dissection ◽  
The Right ◽  
Surgery Duration

This study aimed to assess the utility of the S-O clip during colorectal endoscopic submucosal dissection (ESD). We conducted a retrospective study on 185 patients who underwent colorectal ESD from January 2015 to January 2020. The patients were divided into two groups: before and after the introduction of the S-O clip. Forty-two patients underwent conventional ESD (CO group) and 29 patients underwent ESD using the S-O clip (SO group). We compared the surgery duration, dissection speed, en bloc resection rate, and complication rate between both groups. Compared with the CO group, the SO group had a significantly shorter surgery duration (70.7 ± 37.9 min vs. 51.2 ± 18.6 min; p = 0.017), a significantly higher dissection speed (15.1 ± 9.0 min vs. 26.3 ± 13.8 min; p < 0.001), a significantly higher en bloc resection rate (80.9% vs. 98.8%; p ≤ 0.001), and a significantly lower perforation rate (4.3% vs. 1.3%). In the right colon, the surgery duration was significantly shorter and the dissection speed was significantly higher in the SO group than in the CO group. Moreover, the rate of en bloc resection improved significantly in the right colon. S-O clip-assisted ESD reduces the procedure time and improves the treatment effects, especially in the right colon.

scholarly journals Giant cell tumor cuboid: a rare case report.

2019 ◽  
Vol 26 (09) ◽  
pp. 1597-1599
Author(s):  
Mukesh Kumar ◽  
Masroor Ahmed ◽  
Muhammad Saleem ◽  
Khurram Sahar
Keyword(s):  
Giant Cell Tumor ◽  
Giant Cell ◽  
Skeletal Maturity ◽  
Osteolytic Lesion ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Cell Tumor ◽  
En Bloc ◽  
Cuboid Bone ◽  
The Right

Osteoclastoma (Giant Cell Tumor) of Cuboid bone is a rare bone tumor. GCT is primarily seen in metaphyseo-epiphyseal region of long bones after skeletal maturity. This patient is a 17 years old female, presented with painful swelling of the right foot. On conventional radiographs, there is osteolytic lesion in Cuboid bone of right foot. En bloc resection and autologous bone grafting (iliac crest) was done. Patient's pain and swelling disappeared following the procedure and there is no evidence of recurrence at 18 months follow up.

scholarly journals The Knack and Pitfall of the Retropancreatic Nerve Plexus Hanging Maneuver for Pancreatoduodenectomy for Pancreatic Head Carcinoma.

2020 ◽  
Author(s):  
Naokazu Chiba ◽  
Shigeto Ochiai ◽  
Takahiro Gunji ◽  
Toshimichi Kobayashi ◽  
Kosuke Hikita ◽  
...  
Keyword(s):  
Pancreatic Head ◽  
Operation Time ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Celiac Axis ◽  
Nerve Plexus ◽  
R0 Resection ◽  
En Bloc ◽  
Hanging Maneuver ◽  
The Right

Abstract Background The efficacy of the hanging maneuver for the retropancreatic nerve plexus (RNP) to enhance the confirmation of the margin status and to facilitate en-bloc resection for pancreatoduodenectomy (PD). In this report, we present the knack and pitfall of the hanging maneuver of the RNP. MethodsThe exit of the hanging maneuver of the RNP is the left part of the superior mesenteric artery (SMA), and the entry is the cranial part of the celiac axis. The entry of the hanging maneuver was connected to the dissection line on the right side of the celiac axis. Thereafter, the tape of the hanging maneuver was pulled to the right side, and the RNP was deployed widely. Finally, the RNP was easily dissected using a sealing device other than IPDA ResultsIt is important to clarify the entrance and exit of the hanging taping in this procedure. This permitted the wide spaces between the SMA, SMV, and the resected side, and it was easier to identify the IPDA. By traction of the hanging maneuver tape, a clear line may be drawn between the resection side and the remaining side. ConclusionsWith the correct implementation of the hanging maneuver, we believe that it would be possible to obtain reliable R0 resection as well as a reduction in blood loss and operation time.

scholarly journals Outstanding issues of surgical treatment of locally advanced forms of malignant tumors

2020 ◽  
Vol 21 (4) ◽  
pp. 269-274
Author(s):  
V.V. Egorenkov ◽  
K.A. Andreychuk ◽  
M.S. Molchanov ◽  
E.V. Kuleshova
Keyword(s):  
Surgical Treatment ◽  
Malignant Tumors ◽  
Locally Advanced ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Considerable Uncertainty ◽  
Histological Factors ◽  
The Right ◽  
Complete Tumor

Nowadays surgery is still the mainstay of solid tumors treatment. En Bloc resection is surgical treatment in amount of complete tumor removal. There remains considerable uncertainty about many aspects of resection boundaries, including definition and influence of anatomical and histological factors. One of the biggest challenges for the surgeon is choosing the right surgery for the «right» patient, taking into account the type of tumor and its biology.

Extended Surgery with En Bloc Resection of the Right Common Iliac Vessels for Lymph Node Metastasis of Mucinous Colon Carcinoma: Report of a Case

Surgery Today ◽  
2001 ◽  
Vol 31 (3) ◽  
pp. 238-241 ◽  
Author(s):  
Kazumitsu Ueda ◽  
Hiroyuki Nagayama ◽  
Kazuhiro Narita ◽  
Mitsuo Kusano ◽  
Masahiro Aiba ◽  
...  
Keyword(s):  
Lymph Node ◽  
Lymph Node Metastasis ◽  
Colon Carcinoma ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Extended Surgery ◽  
Node Metastasis ◽  
The Right

Recurrent Osteoblastoma of the Hamate Bone

1999 ◽  
Vol 24 (4) ◽  
pp. 501-505 ◽  
Author(s):  
M. van DIJK ◽  
H. A. H. WINTERS ◽  
P. I. J. M. WUISMAN
Keyword(s):  
Soft Tissues ◽  
Hand Function ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Carpal Bone ◽  
En Bloc ◽  
Iliac Crest Flap ◽  
K Wires ◽  
The Right ◽  
Second Procedure

An osteoblastoma in a carpal bone is very rare and presents a problem of reconstruction after wide tumour excision. We report a case of recurrent osteoblastoma of the right hamate bone with involvement of the ulnar carpal bones and soft tissues that was successfully treated by en bloc resection, temporary interposition of bone cement and fixation with K-wires, followed by reconstruction with a free vascularized iliac crest flap, tailored to the exact size of the defect, in a second procedure. Rapid fusion was achieved and hand function preserved with no evidence of recurrence 3 years postoperatively.

Simultaneous anterior—posterior approach for excision of malignant paraspinal tumor and subsequent reconstruction

1999 ◽  
Vol 91 (2) ◽  
pp. 236-240 ◽  
Author(s):  
Kazuhiro Hasegawa ◽  
Akira Ogose ◽  
Hiroto Kobayashi ◽  
Tetsuro Morita ◽  
Yasuharu Hirata
Keyword(s):  
Posterior Approach ◽  
Malignant Tumors ◽  
Lateral Position ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Content Type ◽  
Spinal Reconstruction ◽  
The Right ◽  
Anterior Posterior

✓ In cases of primary malignant extradural tumors of the spine, the main goal of the surgery is en bloc resection and reconstruction of the spine. After placing the patient in the lateral position, an en bloc resection of a chondrosarcoma that arose from the right seventh rib head and invaded the adjacent vertebra was performed using a simultaneous anterior—posterior approach followed by spinal reconstruction. The technical details are reported. Paraspinal malignant tumors of the thoracic spine can be safely removed en bloc and the spine reconstructed using this approach.

scholarly journals Posterior Mediastinal Ganglioneuroma: A Case Report and Literature Review

2017 ◽  
Vol 3 (3) ◽  
pp. 147-150
Author(s):  
Linkai Jing ◽  
Zhenxing Sun ◽  
Yi Guo ◽  
Youtu Wu ◽  
James Wang ◽  
...  
Keyword(s):  
Intraoperative Imaging ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Sympathetic Ganglia ◽  
En Bloc ◽  
Imaging Evaluation ◽  
Normal Ranges ◽  
Thoracic Spinal ◽  
Posterior Mediastinal ◽  
The Right

Objectives Ganglioneuroma is a rare, benign neurogenic tumor arising from the sympathetic ganglia. In this report, we reviewed and summarized the clinical features, treatment, and prognosis of a posterior mediastinal ganglioneuroma. Case Here, we report on a 29-year-old man referred to us with transient pain in the right side of the chest, lasting for three days. Physical examination revealed no abnormalities. The results of routine laboratory tests were within the normal ranges. Thoracic spinal magnetic resonance imaging showed a well-defined, solid mass in the right paravertebral region at the T5-T8 level, measuring 7.5 cm × 4.2 cm × 1.5 cm. To accurately locate the lesion during surgery, O-arm intraoperative imaging was used in conjunction with the Stealth Station navigation system. The tumor was completely excised and no related complications occurred. The tumor was an encapsulated mass with a solid, homogenous, grayish-tan cut surface. Histopathological examinations confirmed that the mass was a ganglioneuroma. Conclusions Ganglioneuroma is a rare, benign tumor. Prior to treatment, a careful imaging evaluation is necessary in order to obtain an accurate diagnosis. A definitive diagnosis can be made by histological examination. En bloc resection is the preferred treatment for ganglioneuroma as it has an excellent prognosis.

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