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Foot sarcomas: Factors affecting oncological and functional outcomes.
Kozawa E, Nishida Y, Nakashima H, Tsukushi S, Toriyama K, Kamei Y, Ishiguro N. Oncol Lett. 2012 Jan;3(1):82-88.
Quote:
Oncological and functional prognostic factors for patients with foot sarcomas have yet to be clarified. This study was undertaken to identify the prognostic factors for oncological and functional outcomes and the significance of adjuvant radiotherapy in achieving local control in patients with foot sarcomas. We reviewed 31 consecutive patients with soft tissue (24), and bone (7) sarcomas arising in the foot and analyzed the impact of patient characteristics on the functional and oncological outcomes. There were seven cases with clear cell or epithelioid sarcomas. Two of the 31 cases experienced local recurrence despite the fact that only two cases received adjuvant radiotherapy. Sixteen out of 18 cases of soft tissue sarcomas with limb salvage surgery underwent reconstructive procedures for soft tissue defects. Amputation required as a surgical treatment (p=0.002) was a poor prognostic factor. Larger size (p=0.029) and bone reconstruction (p=0.018) were poor prognostic factors for local recurrence-free survival, and amputation (p=0.001) and bone reconstruction (p=0.008) for metastasis-free survival in patients with soft tissue sarcomas. No significant factors were derived in patients with bone sarcomas. Larger size (p=0.021), amputation (p=0.016) and bone reconstruction (p=0.03) were poor prognostic factors affecting function in patients with soft tissue sarcomas, and hindfoot site (p=0.028) and amputation (p=0.028) were poor prognostic factors affecting function in patients with bone sarcomas. Surgery with a negative operative margin and reconstructive procedures achieved good local control and function. Patients that had tumors with larger size, necessitating amputation or bone reconstruction, required novel multimodal treatment in order to improve their outcomes.
Re: Foot sarcomas: Factors affecting oncological and functional outcomes.
Osteosarcoma of the hands and feet: a distinct clinico-pathological subgroup.
Anninga JK, Picci P, Fiocco M, Kroon HM, Vanel D, Alberghini M, Gelderblom H, Hogendoorn PC. Virchows Arch. 2012 Dec 5.
Quote:
Osteosarcomas of hands or feet are rare, and seemingly these cases differ in presentation and behavior compared to those in usual locations. The clinico-pathological presentation of patients with osteosarcomas of the hand or foot was studied and compared with published cases. Forty osteosarcomas were identified among 4,221 cases, representing 0.95 % of all osteosarcomas. Thirty of these were well documented. Mean age at diagnosis was 43 years (hands) and 36 years (feet) and male-female ratio was 1.2:1 and 2.0:1, respectively. In the hand, 62 % of the osteosarcomas presented in the metacarpals and 23 % in the phalanges, and only two cases occurred in the carpal bones. Distribution in the foot was tarsal bones 56 %, metatarsal bones 33 %, and phalanges 11 %.Of the cases in the hand 54 % were of high grade and of those in the foot 71 %. Survival of osteosarcomas of the hand or foot was 81 %. Only patients with high-grade osteosarcoma died of the disease. Histological grade was the only significant variable related to survival. High-grade osteosarcoma of the hand or feet should be treated similar to those in conventional sites. Osteosarcomas of hands or feet are rare and in a relative high proportion are of low grade. Survival in high-grade cases is comparable to that in conventional sites.
Re: Foot sarcomas: Factors affecting oncological and functional outcomes.
Calcaneal osteosarcoma: a rare cause of heel pain in the paediatric population.
Taslakian B, Issa G, Saab R, Jabbour MN, Khoury NJ. BMJ Case Rep. 2013 Feb 4;2013.
Quote:
Osteosarcoma is the most common primary non-haemopoietic malignant bone tumour in children and adolescents. However, it rarely occurs in the calcaneus with only a few case reports in the literature. We report a case of a 14-year-old boy with calcaneal osteosarcoma, who presented with heel pain followed by swelling. The pain was initially thought to be related to a benign process and treated with analgesics, delaying the diagnosis. We discuss the clinical presentation, the differential diagnosis, multi-imaging and pathological findings of a calcaneal osteosarcoma, its clinical outcome and the importance of early diagnosis to improve outcome.