Primary cutaneous CD4 small/medium T-cell lymphoproliferative disorder nodule successfully treated with laser Co ablation: a case report and literature review.

This case report describes an 83-year-old patient with a history of non-melanoma skin cancer who presented with a violaceous, painless nodule on the neck. Dermoscopic examination and subsequent biopsy revealed a Small/Medium CD4 T-cell lymphoproliferative disorder (SMPLPD) of the skin. Although excision was initially recommended, the patient opted for treatment with CO laser ablation.

Primary cutaneous CD4+ small/medium T-cell lymphoproliferative disorders: demographic, clinical, therapeutic and prognostic aspects. A retrospective monocentric analysis.

Primary cutaneous CD4+ small/medium T-cell lymphoproliferative disorders (PCSM-LPDs), represent a rare group of haematological diseases primarily affecting the skin. In this retrospective single-centre case series study, we aimed to investigate the demographic, clinical, therapeutic and prognostic aspects of PCSM-LPD. We collected data from cases diagnosed between 2010 and the present, employing histopathological and immunohistochemical methods following the World Health Organization criteria.

Cholangiocarcinoma Malignant Traits Are Promoted by Schwann Cells through TGFβ Signaling in a Model of Perineural Invasion.

The term cholangiocarcinoma (CCA) defines a class of epithelial malignancies originating from bile ducts. Although it has been demonstrated that CCA patients with perineural invasion (PNI) have a worse prognosis, the biological features of this phenomenon are yet unclear. Our data show that in human intrahepatic CCA specimens with documented PNI, nerve-infiltrating CCA cells display positivity of the epithelial marker cytokeratin 7, lower with respect to the rest of the tumor mass.