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APSP J Case Rep. 2012 Jan-Apr; 3(1): 7.
Published online 2012 March 1.
PMCID: PMC3418034

Recurrent Desmoid Tumor of the Buttock in a Preadolescent Child

Dear Sir

This is in reference to our article published before [1]. On 1 year follow up, the patient had local recurrence measuring 8 cm X 5 cm infero-laterally to the previous scar. MRI of the local region showed a large well defined heterogeneously enhancing soft tissue mass in subcutaneous layers involving ilio-tabial tract with areas of deep multiple recurrences (Fig. 1). There was no evidence of metastasis. Local excision was done. Histopathology was identical as before- the desmoid tumor. The surgical margins were free; the mass was surrounded with fibrocollagenous tissue. Keeping in view the unresectable deep recurrences, he was administered radiotherapy locally. MRI done after 6 weeks of radiotherapy did not show any residual disease. The child is under close follow up.

figure ajcr-3-7.f1
Figure 1: MRI showing large subcutaneous local recurrence and multiple small deep recurrences.

Even after multiple recurrences, successful salvage is achievable, particularly when high-dose focal radiotherapy is incorporated [2]. It would also be imperative to mention role of intra-operative electron radiotherapy (IOERT), followed by moderate doses of external beam radiotherapy (EBRT) after organ-sparing surgery, in patients with primary or recurrent aggressive fibromatosis. Introduction of IOERT into a multimodal treatment approach in patients with aggressive fibromatosis is feasible with low toxicity and is known to yield good local control rates even in patients with microscopical or gross residual disease [3]. Such facility is however unavailable in our setup. In our case, the hip joint was not involved. A case of aggressive pediatric hip fibromatosis with severe joint destruction has been reported recently [4], and we would like to prepare ourselves for such an eventuality.

Footnotes

Source of Support: Nil

Conflict of Interest: None declared

References

1. Sarin YK, Khurana N. Desmoid tumor of the buttock in a preadolescent child. APSP J Case Rep. 2011; 2: 2. [PMC free article] [PubMed]
2. Jabbari S, Andolino D, Weinberg V, Missett BT, Law J, Wara WM, et al. Successful treatment of high risk and recurrent pediatric desmoids using radiation as a component of multimodality therapy. Int J Radiat Oncol Biol Phys. 2009; 75: 177– 82. [PubMed]
3. Roeder F, Timke C, Oertel S, Hensley FW, Bischof M, Muenter MW, et al. Intraoperative electron radiotherapy for the management of aggressive fibromatosis. Int J Radiat Oncol Biol Phys. 2010; 76: 1154– 60. [PubMed]
4. Ruiz-Osuna C, Avila-Zamorano ML, López-Durán A, Garzón de la Mora M, Isunza-Ramírez A. Aggressive pediatric hip fibromatosis with severe joint destruction. Acta Ortop Mex. 2010; 24: 267– 72. [PubMed]

Articles from APSP Journal of Case Reports are provided here courtesy of The Association of Paediatric Surgeons of Pakistan