Page 48 - Journal of Laparoscopic Surgery - WALS Journal

Hana Alhomoud
The use of immunohistochemical panels plays a 5. Buchs N, Taylor S, Roche B. The posterior approach for
fundamental role in the diagnosis of schwannomas and low retrorectal tumors in adults. Int J Colorectal Dis 2007
in ruling out other neoplasms of mesenchymal origin. Apr;22(4):381-385.
Using anti-CD34 antibodies, desmin, cytokeratins (AE1/ 6. Canelles E, Roig JV, Cantos M, García Armengol J, Barreiro E,
AE3), cKit, chromogranin, and S-100 protein. Villalba FL, Ruiz MD, Pla V. Presacral tumors. Analysis
of 20 surgically treated patients. Cir Esp: 2009 Jun;85(6):
Total resection is the main therapeutic treatment 371-377.
of retrorectal schwannoma, using transabdominal or 7. Chang H-C, Wang P-F, Chiang J-M, Tang R-P, Chen J-S,
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retrorectal approach, open or laparoscopy. All lesions Changchien C-R, Wang J-Y. Outcomes of surgical interven-
below the middle of S3 without sacral, pelvic sidewall tion for retrorectal tumors: experience of sixteen patients in
or visceral involvement were excised using the perineal Chang Gung Memorial Hospital. J Soc Colon Rectal Surgeon
approach. All lesions above S3 were excised by means of (Taiwan) 2010 Jun;21:87-94.
an abdominal approach. 14 8. Kye B-H, Kim H-J, Cho H-M, Chin H-M, Kim J-G. Clinico-
The rate of recurrence after complete resection is pathological features of retrorectal tumors in adults: 9 years
15
rare, but it may reach 10 to 54% in incomplete resection. of experience in a single institution. J Korean Surg Soc 2011
Aug;81(2):122-127.
9. Strupas K, Poskus E, Ambrazevicius M. Retrorectal tumors:
CONCLUSION literature review and Vilnius University Hospital ‘Santa-
In conclusion, schwannoma can occur anywhere on the riskiu klinikos’ experience of 14 cases. Eur J Med Res 2011
peripheral nerve. Retrorectal schwannoma is quite rare, May;16(5):231-236.
preoperative MRI is vital to make the correct diagnosis, 10. Macafee DAL, Sagar PM, El-Khoury T, Hyland R. Retrorectal
tumors: optimization of surgical approach and outcome.
and use of immunohistochemical panel is important to Colorectal Dis 2012 Nov;14(11):1411-1417.
achieve a definitive histopathological diagnosis. Surgical 11. Kamer E, Peşkersoy M, Ünalp HR, Tunakan M, Rezenko T,
resection with free margins is the best treatment. Önal M. Pelvic schwannoma causing rectal pressure: report
of a case. Kolon Rektum Hast Derg 2007;17(2):135-139.
REFERENCES 12. Miettinen M, Shekitka KM, Sobin LH. Schwannoma in
the colon and rectum. A clinicopathologic and immu-
1. Maneschg C, Rogatsch H, Bartsch G, Stenzl A. Treat- nohistochemical study. Am J Surg Pathol 2001 Jul;25(7):
ment of giant ancient pelvic schwannoma. Tech Urol 2001 846-855.
Dec;7(4):296-298.
2. Habek D, Habek JC, Sindik N. Pelvic schwannoma. Eur J 13. Domínguez J, Lobato RD, Ramos A, Rivas JJ, Gómez PA,
Obstet Gynecol Reprod Biol 2004 Oct 15;116(2):248-249. Castro S. Giant intrasacral schwannoma: report of 6 cases.
3. Glasgow SC, Birnbaum EH, Lowney JK, Fleshman JW, Kodner IJ, Acta Neurochir (Wien) 1997;139(10):954-960.
Mutch DG, Lewin S, Mutch MG, Dietz DW. Retrorectal 14. Woodfield JC, Chalmers AG, Phillips N, Sagar PM. Algo-
tumors: a diagnostic and therapeutic challenge. Dis Colon rithms for the surgical management of retrorectal tumors.
Rectum 2005 Aug;48(8):1581-1587. Br J Surg 2008 Feb;95(2):214-221.
˘
4. Jao SW, Beart RW Jr, Spencer RJ, Reiman HM, Ilstrup DM. 15. Karabulut Z, Besim H, Hamamcı EO, Bostanoglu S, Erverdi N,
Retrorectal tumors. Mayo Clinic experience, 1960-1979. Dis Korkmaz A. A sacral schwannoma: case report. Turk
Colon Rectum 1985 Sep;28(9):644-652. Neurochir 2002;12:247-250.

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