In vitro diagnostics for the medical dermatologist. Part II: Hypercoagulability tests

Area of Science:

• Dermatology
• Hematology
• Clinical Pathology

Background:

• Cutaneous manifestations such as livedo reticularis and purpura can be early indicators of hypercoagulability.
• These skin findings are nonspecific and often require laboratory testing to identify underlying causes.
• Hypercoagulability disorders are frequently misdiagnosed as pyoderma gangrenosum.

Purpose of the Study:

• To review the methodology, characteristics, and limitations of in vitro laboratory tests for hypercoagulability.
• To guide appropriate test ordering and interpretation in dermatologic conditions.
• To improve the diagnosis and management of hypercoagulability and vasculopathic disease.

Main Methods:

• Review of in vitro laboratory tests for hypercoagulability and vasculopathic disease.
• Summary of test characteristics, including methodology and limitations.
• Focus on relevance to dermatologic manifestations and diagnosis.

Main Results:

• Understanding test properties is essential for accurate diagnosis.
• Indiscriminate test ordering can lead to inaccurate results and management challenges.
• This article provides a summary of key laboratory tests for hypercoagulability workup.

Conclusions:

• Appropriate laboratory test selection and interpretation are vital for diagnosing hypercoagulability in patients with skin findings.
• Accurate diagnosis prevents misdiagnosis, such as with pyoderma gangrenosum.
• This review aids clinicians in utilizing laboratory diagnostics for thrombotic and vasculopathic diseases.