Temporal Biopsy

 

Indications:

The biopsy is performed in case of suspicion of temporal arteritis, either in a temporal arteritis or polymyalgia rheumatica.

Cons-indications:

anticoagulant therapy.

Principle:

The histological analysis of samples of arterial wall can diagnose temporal arteritis or polymyalgia rheumatica.

temporal biopsyTechnique:

The gesture is performed under local anesthesia without requiring hospitalization.

Local anesthesia is obtained using ointment or a patch.

The temporal artery sampling must be sufficient at best bilateral, for diagnosis.

results:

A normal biopsy does not eliminate the diagnosis; if doubt persists, then we can help an external carotid angiography to guide sampling.

A positive biopsy can diagnose temporal arteritis or polymyalgia rheumatica, and assess its evolutionary stage: initial (Stage I); granulomatous (stage II); Scar (stage III).

Cost:

K10 + BP100.

Practical advice:

In stage I of arteritis, a risk of false negative exists, and at stage III risk of a false positive because the differential histological diagnosis with a blood senile degeneration is difficult.

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