a. Fibrous tissue tumors
1. Dermatofibrosarcoma protuberans (DFSP)
2. Malignant fibrous histiocytoma (MFH)
3. Atypical fibroxanthoma
4. Epithelioid sarcoma
5. Synovial sarcoma
b. Tumors of the fat cells
Liposarcoma
c. Vascular tumor
1. Angiosarcoma
2. Kaposi’s sarcoma
d. Histiocytic tumors
Langerhans cell histiocytosis (LCH)
e. Hematopoietic tumors
e-1. Cutaneous lymphoma
Cutaneous T-cell lymphomas
1. Mycosis fungoides (MF)
2. Sézary syndrome (SS)
3. Primary cutaneous anaplastic large-cell lymphoma
Supplement: Lymphomatoid papulosis
4. Pagetoid reticulosis (Woringer-Kolopp)
5. Adult T-cell leukemia/lymphoma (ATLL)
6. Natural killer (NK)/ T-cell lymphoma
7. Subcutaneous panniculitis-like T-cell lymphoma
Cutaneous B-cell lymphoma
1. Primary cutaneous marginal zone B-cell lymphoma
2. Primary cutaneous follicle center lymphoma
3. Primary cutaneous diffuse large B-cell lymphoma
e-2. Leukemia cutis
e-3. Multiple myeloma |