Diagnostic Criteria of Langerhans Cell Histiocytosis (LCH)

The diagnosis of Langerhans Cell Histiocytosis (LCH) is based on histological and immunophenotypic examination of lesional tissue. The main feature is the morphologic identification of the characteristic LCH cells. Additionally, positive staining of the lesional cells with CD1a and/or Langerin (CD207) is required for definitive diagnosis. Continue reading

Diagnostic Criteria for Plasma Cell Myeloma (PCM)

The definition of plasma cell myeloma (PCM) has rested on identifying clinical and laboratory features that predict when a sufficient burden of plasma cells has accumulated that the patient will benefit from treatment.

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Staging and Risk Stratification of Germ-Cell Tumors

Germ cell tumours of the testis are the commonest malignancy in men aged 20-40 years. Considerable therapeutic improvements in management—based on the cancer’s responsiveness to chemotherapy that contains platinum—mean that over 95% of these patients can now expect to be cured.

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ACR Criteria for the Classification of Giant-Cell Arteritis

Three of the following five criteria were required to meet American College of Rheumatology (ACR) classification criteria for giant-cell arteritis:

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