Lennert's lymphoma with giant multivesicular lysosomal bodies optically visible

Lymphomatoid Papulosis Associated with Cutaneous T-Cell Signet Ring Lymphoma

The authors describe a new case of cutaneous T-cell lymphoma of signet ring cell type with CD-30 (Ki-t) expression. The patient was a 52-year-old woman with a 20-year history of recurrent papulonodular lesions characteristic of lymphomatoid papulosis (LP). Subsequent to developing the signet ring cell lymphoma (SRL) the patient's cutaneous lesions did not resolve as previously, and a skin biopsy showed a diffuse proliferation of atypical lymphoid cells with cytoplasmic vacuoles. SRL was first reported in 1985 by Weiss, and a literature search found only six further reports since then. Vaillant suggests that the peculiar morphology is retated to the special indolent course of this condition and that the cutaneous form should be considered a distinct entity. This is the first report of a patient with LP who subsequently developed a cutaneouis T-cell signet ring lymphoma with CD-30 antigen expression. The case could be an example of a so-called borderline lymphoma.

Second malignancies in Hodgkin's disease: A review of the literature and report of a case with a secondary Lennert's lymphoma

A small percentage of patients treated for Hodgkin's disease are at risk of developing a second malignancy. The appearance of secondary malignancies such as leukemia, carcinoma or non-Hodgkin's lymphomas may be attributed to the mutagenic effects of chemotherapy and/or radiotherapy. Most secondary non-Hodgkin's lymphomas are of the B-cell type, but isolated cases were reportedly of a T-cell lineage. A review of the literature pertaining to the development of secondary peripheral T-cell lymphomas is presented along with the description of an additional case. The latter developed in the tonsil and was diagnosed as a Lennert's lymphoma (lymphoepithelioid T cell lymphoma)on histological and immunological grounds. This report also reviews the development of a of peripheral T-cell lymphoma described in patients following chemotherapy and/or radiotherapy for Hodgkin's disease.