Mycosis Fungoides and Sezary Syndrome N2 TNM Finding v8

**Semantic type:** Finding

**Definition:** Clinically abnormal peripheral lymph nodes; histopathology Dutch grade 2 or NCI LN3. Note: EORTC N2 classification includes Dutch grade 2: dermatopathic lymphadenopathy; early involvement by mycosis fungoides (presence of cerebriform nuclei less than 7.5 micrometers). NCI LN3: aggregates of atypical lymphocytes; nodal architecture preserved. (from AJCC 8th Ed.)