Papuloerythroderma of Ofuji (PEO) is an uncommon entity of unknown etiology, characterized by coalescing erythematous papules sparing skin folds. A number of cases have described the association of this disorder with malignant with pathology, mainly with cutaneous T cell lymphoma. Such reports give rise to the suggestion that PEO may be a precursor of lymphoma or a form of cutaneous T cell lymphoma. We report a case of PEO, which was diagnosed as cutaneous T-cell lymphoma only 2 months after the development of skin lesions, and rapidly progressed. This case suggests the presence of a variant of cutaneous T cell lymphoma with clinical feature of PEO, which is different from mycosis fungoides or S zary syndrome.
Lymphoma ; Lymphoma, T-Cell, Cutaneous* ; Lymphoma, T-Cell, Peripheral ; Mycosis Fungoides ; Pathology ; Skin

Humans ; Lymphoma, Follicular/pathology* ; Lymphoma, T-Cell, Peripheral

Adult ; Female ; Humans ; Lymphoma, T-Cell ; pathology ; physiopathology ; Lymphoma, T-Cell, Cutaneous ; pathology ; physiopathology ; Myositis ; physiopathology

Adolescent ; Female ; Humans ; Lymphoma, T-Cell ; pathology ; Subcutaneous Tissue ; pathology

Aged ; Humans ; Lymphoma, T-Cell, Cutaneous ; pathology ; Skin Neoplasms ; pathology

Humans ; Lymphoma ; Lymphoma, T-Cell ; Myeloproliferative Disorders/genetics* ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology* ; T-Lymphocytes/pathology*

Central Nervous System ; pathology ; Humans ; Lymphoma, T-Cell, Peripheral ; diagnosis

OBJECTIVETo investigate the frequency of different types of mature T- and NK-cell lymphomas diagnosed in a 4-year period at Sun Yat-sen University Cancer Center, and to study baseline CD30 for potential anti-CD30 targeted therapy in mature T- and NK-cell lymphoma.

METHODSAll cases of mature T- and NK-cell lymphoma diagnosed at Sun Yat-sen University Cancer Center from September 1, 2009 to August 31, 2013, were reviewed. Paraffin-blocks of available 164 consecutive cases were stained for CD30 immunohistochemistry using EnVision protocol.

RESULTSA total of 625 cases of mature T- and NK-cell lymphomas were diagnosed and the most common type was extranodal NK/T cell lymphoma (ENKTL), nasal type 319 (51.0%) cases, followed by angioimmunoblastic T-cell lymphoma (AITL) (119 cases, 19.0%), peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) (81 cases, 13.0%), and anaplastic large-cell lymphoma (ALCL), including 48 cases (7.7%) of systematic ALCL and 11 cases (1.8%) of primary cutaneous ALCL. Besides ALCL, ENKTL had the highest expression rate of CD30 among the 164 cases, with positivity observed in 41 cases (62.1%, 41/66). Only 1 case of PTCL-NOS was CD30 positive. CD30 was not expressed in all 28 cases of AITL and other rare types of mature T- and NK-cell lymphoma.

CONCLUSIONSThe frequency of different types of mature T- and NK-cell lymphoma encountered at Sun Yat-sen University Cancer Center was similar to that seen in other areas of China and other Asia countries. CD30 expression is different among several types of mature T- and NK-cell lymphoma. In addition to ALCL, ENKTL has the highest expression rate of CD30, which may be a candidate disease for anti-CD30 targeted therapy.

China ; epidemiology ; Humans ; Immunohistochemistry ; Killer Cells, Natural ; Lymphoma, Extranodal NK-T-Cell ; epidemiology ; pathology ; Lymphoma, Large-Cell, Anaplastic ; epidemiology ; pathology ; Lymphoma, Primary Cutaneous Anaplastic Large Cell ; epidemiology ; pathology ; Lymphoma, T-Cell, Peripheral ; epidemiology ; pathology ; T-Lymphocytes

Dendritic Cells, Follicular ; pathology ; Diagnosis, Differential ; Humans ; Leukemia, Lymphocytic, Chronic, B-Cell ; pathology ; Lymphoma ; pathology ; Lymphoma, Extranodal NK-T-Cell ; pathology ; Lymphoma, Follicular ; pathology ; Lymphoma, Large B-Cell, Diffuse ; pathology ; Lymphoma, Large-Cell, Anaplastic ; pathology ; Lymphoma, Mantle-Cell ; pathology ; Lymphoma, T-Cell, Peripheral ; pathology ; Neoplasm Invasiveness ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; pathology

Humans ; Thyroid Cancer, Papillary ; Neck/pathology* ; Lymph Nodes/pathology* ; Thyroid Neoplasms/pathology* ; Lymphoma, T-Cell/pathology*