ABSTRACT
A 64 years old male presented with reddish lesions all over the body of 1 month duration, high grade fever with evening rise of temperature and chills. No lymphadenopathy or hepatosplenomegaly were noted. Multiple infiltrated erythematous and hyperpigmented patches and plaques were present on the face, trunk and extremities along with few oral erosions. Histopathology from skin showed features of mycosis fungoides (MF). A further workup with Immunohistochemistry was suggestive of peri pheral T-cell lymphoma, not otherwise specified diag nosis (PTCLNOS). We report a case of PTCLNOS in a man mimicking MF clinically and histopathologically.
ABSTRACT
Objective To analyze the genetic changes in peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) and to find the key molecular aberrations underlying its pathogenesis. Methods A total of 37 cases of PTCL-NOS were investigated by 1Mb resolution array comparative genomic hybridisation (Array-CGH), in which 9 cases were further studied by using a Tile path array-CGH. DNA extraction, clonality analysis and histologic review were conducted to exclude 6 cases with polyploidy and without obvious genetic imbalances from this study. Results In general, there was a considerable overlap in the CGH profiles in many PTCL-NOS cases. The most recurrent regions of genomic gains were lp36.13-1p36.32, 7q22.1, 7q36.1-7q36.3, 7q32.1-7q32.3, 7q22.1-7q34,9p11 .2-9q12 and 9q33.3-9q34.3. The most recurrent regions of genomic losses were 1p12-1p21.1 and 13q14.11-13q14.3. Conclusion Genomic gains and losses are frequently identified in PTCL-NOS with array-CGH, in which patients with multiple chromosomal alterations (≥6regions) have poor prognosis. These genomic profiles are broadly important to reveal a distinct subgroup with genetic alterations and to find the key genomic imbalance of PTCL-NOS.