Histopathological classification of childhood rhabdomyosarcoma: a report from the International Society of Pediatric Oncology pathology panel.

Five hundred thirteen soft tissue tumours of childhood referred to the International Society of Pediatric Oncology (SIOP) Rhabdomyosarcoma study have been reviewed. The period covered was from January 1975 to December 1983. Three hundred thirty-nine neoplasms were regarded as embryonal rhabdomyosarcoma.

[Lymph node histopathologic aspects in cutaneous lymphomas of the mycosis fungoides or Sézary syndrome type. Retrospective study of 98 biopsies].

The results of a retrospective study of 98 lymph nodes in 89 patients with documented mycosis fungoides (M.F.) are reported.

Topography of childhood tumors: pediatric coding system.

The importance of a uniform coding system for cancer research, tumor registry, and exchange of information is recognized. However, tumors arising in children differ from those in adults, resulting in lack of precision when one coding system is used for both. Because the topographic code of the International Classification of Disease for Oncology for adult tumors does not lend itself well to pediatric tumors, the International Society of Paediatric Oncology (SIOP) developed a four-digit topographic coding system particularly adapted to childhood tumors.

[Lymph node localization of epidermotropic T malignant lymphomas (mycosis fungoides and Sézary's syndrome)].

In this paper are reported the different histological variants of Mycosis Fungoïdes (M.F.) observed in 48 lymph node positive biopsies providing from 98 lymph nodes obtained from 94 patients with M.

Calcitonin and carcinoembryonic antigen in poorly differentiated follicular carcinoma.

Previous studies have shown that certain patients suffering from poorly differentiated follicular carcinoma (PDFC) of the thyroid had high levels of calcitonin (CT) and carcinoembryonic antigen (CEA) in the plasma. In this work, both CT and CEA were localized in tissue sections obtained at operation from patients suffering from PDFC. The results confirm the hypothesis that certain cases of PDFC are in fact CT-secreting tumors and represent another type of thyroid neoplasma.