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http://dx.doi.org/10.1177/12034754251316301 | DOI Listing |
Injections have been linked to feline sarcomas (feline injection-site sarcoma; FISS) and cutaneous lymphomas (cutaneous lymphoma at injection site; CLIS). Both tumors often exhibit lymphoplasmacytic inflammation ascribed to injected immunogenic material. CLIS is hypothesized to emerge from transformation and clonal expansion of lymphoid cells following persistent immune stimulation with feline leukemia virus (FeLV) reactivation and transformation.
View Article and Find Full Text PDFAnn Hematol
September 2025
Department of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, Vienna, Austria.
In a subset of patients with systemic mastocytosis (SM), an associated hematologic neoplasm (AHN) is identified. Most AHN are myeloid neoplasms, whereas lymphoid neoplasms are uncommon. We report on a 70-year-old female patient with bone marrow mastocytosis (BMM) associated with primary cutaneous follicle center lymphoma (PCFCL).
View Article and Find Full Text PDFBr J Dermatol
September 2025
Department of Dermatology and Venereology, University Hospital Centre (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland.
Background: Cutaneous T-cell lymphomas (CTCL) are a heterogeneous group of non-Hodgkin lymphomas, with mycosis fungoides (MF) being the most common type, accounting for approximately 60% of all lymphomas arising primarily in the skin. The diagnosis of MF is challenging, especially in its early stages when the number of atypical T-lymphocytes is small, and clinical and histopathologic changes are often nonspecific. This leads to significant delays of three to five years in diagnosis and treatment.
View Article and Find Full Text PDFInt J Hematol
September 2025
Division of Leukemia and Lymphoma, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan.
Arsenic trioxide (ATO) in combination with all-trans retinoic acid (ATRA) has been shown to be effective in both adult and pediatric patients with acute promyelocytic leukemia (APL). Addition of ATO to conventional chemotherapy could lead to a reduction in the doses of cytotoxic agents, but the long-term safety of ATO is not fully understood, especially in children. The Japan Children's Cancer Group conducted a risk-stratified prospective study to investigate safety and efficacy of ATO in children with newly diagnosed APL by replacing all three intensification phases with ATO.
View Article and Find Full Text PDFInt J Surg Pathol
September 2025
Pathology Institute Enge, Zurich, Switzerland.
Anaplastic lymphoma kinase ()-rearranged myxoid spindle cell tumors represent a recently recognized subgroup of kinase fusion-positive mesenchymal neoplasms. These tumors often arise in the superficial soft tissues but may occasionally be found in deeper tissues, or, rarely, within visceral organs. The term (SAMS) comprises a distinct subset of cutaneous soft tissue tumors with superficial location and spindle cell morphology, exhibiting bland cytomorphology and favorable clinical outcomes.
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