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Clarkson - SurgOnc · Dr Paul Clarkson Dept of Orthopaedics, UBC [email protected]....

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Sarcoma Update Dr Paul Clarkson Dept of Orthopaedics, UBC [email protected]
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Sarcoma UpdateDr Paul Clarkson

Dept of Orthopaedics, [email protected]

IntroductionExtremity Sarcoma ServiceMyself and Bas Masri200 Sarcomas per yearMonday clinic every weekMultidisciplinary service

ProblemSignificant % of patients

Delay in diagnosisInappropriate surgeryCompromises Limb SalvageRequires more RT/Chemo/Amputations

BUT – huge overlap between benign and malignant

PresentationPresent as

Mass8mm up to 50cm or morePainless or painfulGrow slowly or quicklySoft or firm or hard

PresentationSuspicious if:

>5cmGrowingDeep to the fascia

Look for systemic conditionsNFFamily History Li Fraumeni

Presentation

WorkupClinical ExaminationUltrasound

Very non-specificGuide you to size and depthMonitor over time

Workup

Workup

WorkupMRI Guidelines

All lesions >5 cmAll deep lesionsAll rapidly growing lesions

(I do MRI for everything – my pre-test probability is >70%)

WorkupMRI ?before referral

If you can – do it!But don’t delay by > a week or two

Biopsy

Having the Correct Diagnosis Never Impedes Management

(Clarkson’s First Law)

Biopsy

BiopsyFNA

50% accuracy. So toss a coin instead

Core BiopsyRequires experienced pathologist98% accuracyMake sure leave a scar

Open BiopsyIf needs an open biopsy – refer it.

Straight to Excision

Straight to Excision

Some Cases

SummaryDeep/Large/Growing = BadExcise if <5cm/superficial/stableMRI for suspicious lesions

We are happy to review cases


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