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Erschienen in:
01.06.2014 | Correspondence
Recurrent granular cell tumor of the anal–perianal region: how much anal sphincter can be resected?
Erschienen in: Techniques in Coloproctology | Ausgabe 6/2014
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A 48-year-old Chinese woman presented with a 6-month history of a progressively growing perianal mass but no pain, hematochezia, tenesmus, or weight loss. She had a history of hyperlipidemia and of perianal granular cell tumor (GCT) resection 7 years prior. Physical examination showed a 5-cm surgical scar on the skin 3 cm from the anus, a tough perianal mass adhering to the external anal sphincter (EAS) and extending to the left half of the anal circumference under the old scar. The mass was 3 × 4 cm with smooth borders and fixed to the underlying tissues. All blood and biochemical test results were within the normal range with one exception: the CA 19–9 level was 70 U/L. Pelvic magnetic resonance imaging (MRI) revealed a brightly enhancing mass Fig. 1a.
Fig. 1
a Dynamic contrast-enhanced MR axial image through lower anal canal shows brightly enhancing recurrent tumor (white arrow) and reveals that the left part of the EAS is involved. b Three months after the operation, T1-weighted dynamic contrast-enhanced MR axial image through the same level of anal canal as A appears normal with only a little moderately enhancing fibrous scar left (black arrow)
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