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Segmental lymph-node infarction after fine-needle aspiration

J D Davies, A J Webb

    Journal of Clinical Pathology
    |August 1, 1982
    PubMed
    Summary
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    Traumatic venous thrombosis can cause wedge-shaped lesions in intramammary lymph nodes, mimicking arterial infarction. Fine-needle aspiration is the likely cause of this distinctive microanatomical distribution.

    Area of Science:

    • Pathology
    • Surgical Pathology
    • Lymph Node Pathology

    Background:

    • Intramammary lymph nodes are crucial for immune surveillance of the breast.
    • Understanding lymph node pathology is essential for accurate diagnosis and patient management.
    • Traumatic lesions in lymph nodes can mimic spontaneous disease processes.

    Observation:

    • A distinct wedge-shaped area of lymphoid depletion and sinus distention was observed in an intramammary lymph node.
    • The lesion's morphology suggested an origin from traumatic venous thrombosis.
    • The topographical distribution differed from spontaneous venous infarction.

    Findings:

    • The observed lesion closely resembled segmented infarction caused by small arterial lesions.
    • The microanatomical distribution was characteristic of localized trauma, likely from fine-needle aspiration.

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  • Distinguishing traumatic venous thrombosis from spontaneous infarction is critical.

    • Implications:

    • Fine-needle aspiration can induce venous thrombosis and infarction in lymph nodes.
    • Pathologists must consider iatrogenic causes when interpreting lymph node biopsies.
    • This finding highlights the importance of correlating histological findings with clinical procedures.