ABSTRACT
Cutaneous pseudolymphomas are benign lymphoid proliferations which simulate cutaneous lymphoma clinically and histopathologically. Heterogeneous group of neoplasms, which show considerable variation in clinical presentation histopathology and prognosis. Mycosis fungoides is the most common T-cell lymphoma. Lymphomatoid papulosis and anaplastic large cell lymphoma are chronic recurrent lymphoproliferative disease. The World Health Organization classifies it within the spectrum of primary cutaneous CD30+ T-cell lymphoproliferative disorders with cutaneous anaplastic large cell lymphoma. Cutaneous follicle center cell lymphoma and extranodal marginal zone B-cell lymphoma represent 90% of all forms of cutaneous B-cell lymphomas. Other cutaneous B-cell lymphomas are diffuse large B-cell lymphomas of leg type, intravascular B-cell lymphoma and mantle cell lymphoma. Cutaneous infiltrate of leukemic cells of acute or chronic myeloid leukemias, lymphoid leukemias, and in the setting of myelodysplastic and myeloproliferative syndromes.
