Results 11 to 20 of about 1,034 (137)

ALK-Positive Histiocytosis With Unilateral Breast Involvement: A Case Report. [PDF]

Clin Case Rep
ABSTRACT APH is a rare disorder characterized by the proliferation of ALK‐expressing histiocytes with variable anatomical involvement; however, mammary involvement is exceptionally rare. A 32‐year‐old woman presented with a painless right breast mass. Ultrasound identified a 9 × 8 mm hypoechoic nodule, categorized as BI‐RADS 4A.
Liu X, Ren D, Liang Y.
europepmc   +2 more sources

Characteristics of histiocytic neoplasms presenting as breast masses. [PDF]

Br J Haematol
British Journal of Haematology, Volume 208, Issue 1, Page 358-362, January 2026.
Vougiouklakis T, Rosenblum MK, Cannavo M, Feigin K, Rosenberg AE, Wittlin F, Mahajan S, Brogi E, Arcila ME, Wen HY, Diamond EL.   +10 more
europepmc   +2 more sources

Erdheim-Chester Disease Manifesting Without Long Bone Involvement. [PDF]

Respirol Case Rep
We present an atypical case of Erdheim–Chester Disease (ECD) due to the absence of skeletal involvement despite widespread infiltration of other organs. ABSTRACT Erdheim–Chester Disease (ECD) is an extremely rare, non‐Langerhans cell histiocytosis characterised by the proliferation of foamy histiocytes infiltrating various organs.
Sivasubramanian D, Balasubramanian K, Mohamed Kalifa MRH, Sanil S, Aravind S, Palanisamy NN, Senthilkumar V.   +6 more
europepmc   +2 more sources

Juvenile xanthogranuloma manifesting in the forehead: A case report. [PDF]

Clin Case Rep
Juvenile Xanthogranuloma. Key Clinical Message A 3 ‐year‐old boy presented with a forehead nodular mass, which was excised and confirmed histologically as Juvenile Xanthogranulomma (JXG). It affects children with a predilection for the head and neck region.
Chindia ML, Butt FMA, Mung'ania M, Owino RO.   +3 more
europepmc   +2 more sources

A comparison of the International Consensus and 5th WHO classifications of T‐cell lymphomas and histiocytic/dendritic cell tumours

British Journal of Haematology, Volume 203, Issue 3, Page 369-383, November 2023., 2023
The simultaneous existence of two classifications of haemato‐lymphoid tumours poses problems not only for diagnosis formulation but also for patients' management and design of clinical trials. Summary Since the publication in 2017 of the revised 4th Edition of the World Health Organization (WHO) classification of haematolymphoid tumours, here referred ...
Brunangelo Falini, Stefano Lazzi, Stefano Pileri   +2 more
wiley   +1 more source

Keratin‐positive giant cell‐rich tumors of soft tissue with HMGA2::NCOR2 fusions

Journal of Cutaneous Pathology, Volume 50, Issue 11, Page 977-982, November 2023., 2023
Abstract Background Giant cell tumor of soft tissue (GCT‐ST) is a rare soft tissue neoplasm that is morphologically similar to but genetically distinct from giant cell tumor of bone. A novel keratin‐positive GCT‐ST (KPGCT‐ST) harboring HMGA2::NCOR2 fusions was recently discovered.
Maximillian A. Weigelt, Elizabeth M. Azzato, Gabriel K. Habermehl, Steven D. Billings, Jennifer S. Ko, Karen J. Fritchie   +5 more
wiley   +1 more source

NTRK expression is common in xanthogranuloma and is associated with the solitary variant

Journal of Cutaneous Pathology, Volume 50, Issue 11, Page 991-1000, November 2023., 2023
Abstract Background Previously identified mutually‐exclusive driver genes in juvenile xanthogranuloma (JXG) and adult xanthogranuloma (AXG) include mutations in MAP kinase pathway genes such as MAP2K1, BRAF, ARAF, KRAS, NRAS, PIK3CD as well as fusions in BRAF and ALK, with a subset of cases with no identified driver yet. NTRK fusion has been identified
B. Umphress, M. Kuhar, R. Kowal, A. K. Alomari, L. A. Baldridge, A. J. Ross, S. J. Warren   +6 more
wiley   +1 more source

Therapy of necrobiotic xanthogranuloma – case series and review of the literature

JDDG: Journal der Deutschen Dermatologischen Gesellschaft, Volume 21, Issue 11, Page 1315-1318, November 2023., 2023
Summary Necrobiotic xanthogranuloma is a rare disease that is part of the non‐Langerhans cell histiocytoses. It is characterized by yellowish skin lesions, which are typically periorbitally localized. Extracutaneous manifestations of all organs are possible and can cause potentially life‐threatening complications.
Inga Hansen, Susanne Ghandili, Finn Abeck, Nina Booken, Stefan W. Schneider   +4 more
wiley   +1 more source

Recalcitrant primary cutaneous Rosai‐Dorfman disease. Efficacy of sirolimus and intralesional methylprednisolone

Skin Health and Disease, Volume 3, Issue 5, October 2023., 2023
Rosai‐Dorfman disease is a sinus histiocytosis with massive lymphadenopathy. Purely‐cutaneous disease is rare. There is a lack of guidelines to treat the disease and often is based in disease severity. Abstract Sinus histiocytosis or Rosai‐Dorfman disease (RDD) is a rare disorder with severe lymphadenopathy and a limited clinical course, the aetiology ...
Andrés Tirado‐Sánchez
wiley   +1 more source

A 3‐year‐old male with an extramedullary, intra‐ and extradural mass at T11‐L1

, 2023
Brain Pathology, Volume 33, Issue 6, November 2023.
Aziz Sagga, Vivek Mehta, Cynthia Hawkins, Frank K. H. van Landeghem   +3 more
wiley   +1 more source