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Non‐scarring patchy alopecia: What else, apart from alopecia areata?

A 67‐year‐old woman presented with a 3‐month history of patchy alopecia areata (AA)‐like hair loss and multiple painful enlarged lymph nodes at cervical, nuchal, and left axillary site. The patient was on follow‐up for IgM monoclonal gammopathy of undetermined significance, stable for many years. A punch biopsy from a patch of the temporal scalp revealed the presence of B‐cell lymphoid infiltrates consistent with marginal zone B‐cell lymphoma (MZL). Other staging examinations were conducted to make a definitive diagnosis of nodal MZL with secondary cutaneous involvement. The patient showed a complete remission of the alopecia, without evidence of scarring, after immunochemotherapy for lymphoma.