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Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_I | Pages 68 - 68
1 Mar 2010
Abed R Grimer RJ Abudu A Carter SR Jeys L Tillman RM
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Aim: To identify the clinical features of patients who present with soft tissue metastases (from a cancer elsewhere) and to identify the source of the cancer.

Method: In a database containing details of 7242 patients referred to our unit for investigation of a soft tissue lump, only 100 of these patients were found to have a soft tissue metastasis (1.4%). We analysed their presenting features and identified the site of the primary malignancy.

Results: The most common presentation of soft tissue metastases was a painless lump The lumps ranging from 2 to 35 cm (mean 8.3cm) with 78% of the lumps located deep to the fascia. The mean age at presentation was 62 and there were equal males and females. 53 had a past history of malignancy. Of these 53, 52 had metastases from the same primary (lung 11, melanoma 10, kidney 9, GI tract 4, breast 6, bladder 4 and others in 9). The other 47 patients had no past history of malignancy and the metastasis was the first presentation of malignancy. The primary sites in these cases were: lung in 19, GI tract 4, kidney 2, melanoma 9, other 3 and unknown (despite investigations) in 10. There was no correlation of the site of the metastases with the primary tumour.

Of the 7242 patients with soft tissue lumps, 476 had a past history of malignancy. Of these patients, only 12% actually had a soft tissue metastasis while 28% had a benign diagnosis, 55% a soft tissue sarcoma and 5% other malignancy.

Conclusion: Patients with a past medical history of malignancy and a new soft tissue lump have a 12% chance of it being a soft tissue metastasis. If a lump proves to be a soft tissue metasasis, the lung is the most common primary site.


The Journal of Bone & Joint Surgery British Volume
Vol. 91-B, Issue 8 | Pages 1083 - 1085
1 Aug 2009
Abed R Grimer RJ Carter SR Tillman RM Abudu A Jeys L

In our database of 7935 patients referred for investigation of a soft-tissue mass, only 100 were found to have a soft-tissue metastasis (1.3%). Our aim was to define the clinical features of such patients and to identify the site of their primary tumour.

The most common presentation was a painful lump, deep to the fascia, ranging between 2 cm and 35 cm (mean 8.3 cm) with 78% of the lumps located deep to the fascia. The mean age of the patients at presentation was 64 years (22 to 84) and there were almost equal numbers of men and women. Of 53 patients with a history of malignancy, 52 had metastases from the same primary (lung in 12, melanoma in ten, kidney in nine, gastrointestinal track in four, breast in five, bladder in four, and others in eight). The other 47 had no history of malignancy and the metastasis was the first presentation. The primary sites in these cases were the lung in 19, gastro-intestinal track in four, kidney in two, melanoma in nine, other in three, and unknown (despite investigations) in ten. There was no correlation between the site of the metastases and the primary tumour.

Of the 7935 patients, 516 had a history of malignancy. Of these, only 10% had a soft-tissue metastasis, 29% had a benign diagnosis, 55% a soft-tissue sarcoma and 6% another malignancy. Patients with soft-tissue metastases have similar clinical features to those with soft-tissue sarcomas and should be considered for assessment at appropriate diagnostic centres for patients with suspicious soft-tissue lumps.