These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Gastrointestinal stromal tumor presenting as a rectovaginal mass. Clinicopathologic and molecular-genetic characterization of a rare tumor with a literature review.
    Author: Pelz AF, Agaimy A, Daniels M, Evert M, Schulz HU, Lüders P, Müller G, Lasota J, Röpke A, Wieacker P, Miettinen M, Schneider-Stock R.
    Journal: Hum Pathol; 2011 Apr; 42(4):586-93. PubMed ID: 21237497.
    Abstract:
    Rectal gastrointestinal stromal tumors are rare. To date, 12 gastrointestinal stromal tumors have been reported as pelvic vaginal masses. We describe a rectovaginal tumor in a 39-year-old woman. The tumor frequently recurred after multiple surgical excisions and interrupted imatinib treatment without metastasizing. Magnetic resonance tomography demonstrated a partial response under imatinib. The patient was alive with stable disease under imatinib 44 months from initial diagnosis. Molecular analysis showed a somatic 6-base pair deletion in exon 11 of c-KIT (W557_K558del) in both the primary tumor and the third recurrence; the recurrence had an additional exon 17 mutation (N822K). Comparative genomic hybridization analysis of the primary tumor showed loss of 14q and gain of 1q. Recurrence showed complete loss of nuclear p16 expression. Molecular studies and p16 status confirmed the typical characteristics of gastrointestinal stromal tumors with an aggressive phenotype underscoring the need for a special interdisciplinary treatment and for achieving complete local excision with free margins.
    [Abstract] [Full Text] [Related] [New Search]