Impact of expert pathology review in skin adnexal carcinoma diagnosis: Analysis of 2573 patients from the French CARADERM network.

Purpose: To prospectively assess the impact of expert pathological review of skin adnexal carcinoma diagnosis in France.

Methods: From 2014 to 2019, 2573 samples from patients with newly diagnosed or suspected skin adnexal carcinomas were reviewed prospectively by expert pathologists through the national CARADERM (CAncers RAres DERMatologiques) network. Changes in diagnosis between referral and expert review were analysed regarding their potential impact on patient care or prognosis.

Primary cutaneous large B-cell lymphomas: relevance of the 2017 World Health Organization classification: clinicopathological and molecular analyses of 64 cases.

Aims: We applied the 2017 World Health Organization (WHO) classification criteria to categorise a series of 64 primary cutaneous large B-cell lymphomas (PCLBCLs), containing a majority (≥80%) of large cells and a proliferative rate of ≥40%, raising the problem of the differential diagnosis between PCLBCL, leg type (PCLBCL-LT) and primary cutaneous follicle centre lymphoma, large cell (PCFCL-LC). The aims were to determine the reproducibility and prognostic relevance of the 2017 WHO criteria.

Methods And Results: Morphology and phenotype identified 32 PCLBCLs-LT and 25 PCFCLs-LC; seven cases (11%) remained unclassified.

Leydig cell tumor in a patient with 49,XXXXY karyotype: a review of literature.

49,XXXXY pentasomy or Fraccaro's syndrome is the most severe variant of Klinefelter's syndrome (KS) affecting about 1/85000 male births. The classical presentation is the triad: mental retardation, hypergonadotropic hypogonadism and radio ulnar synostosis. Indeed, the reproductive function of Fraccaro's syndrome is distinguished from KS.

Azo pigments and quinacridones induce delayed hypersensitivity in red tattoos.

Background: Induction of delayed hypersensitivity reactions by red tattoos has been occasionally reported. Little is known about the inks used. Azo pigments have been implicated in some instances, but there is only one reported case involving quinacridones.

Annexin A1 in primary tumors promotes melanoma dissemination.

Metastatic melanoma is one of the most aggressive forms of skin cancer and has a poor prognosis. We have previously identified Annexin A1 (ANXA1) as a potential murine melanoma-spreading factor that may modulate cell invasion by binding to formyl peptide receptors (FPRs). Here, we report that (1) in a B16Bl6 spontaneous metastasis model, a siRNA-induced decrease in tumoral ANXA1 expression significantly reduced tumoral MMP2 activity and number of lung metastases; (2) in a retrospective study of 61 patients, metastasis-free survival was inversely related to ANXA1 expression levels in primary tumors (HR 3.

Aggressive epidermotropic cutaneous CD8+ lymphoma: a cutaneous lymphoma with distinct clinical and pathological features. Report of an EORTC Cutaneous Lymphoma Task Force Workshop.

Aims: Aggressive epidermotropic cutaneous CD8(+) lymphoma is currently afforded provisional status in the WHO classification of lymphomas. An EORTC Workshop was convened to describe in detail the features of this putative neoplasm and evaluate its nosological status with respect to other cutaneous CD8(+) lymphomas.

Methods And Results: Sixty-one CD8(+) cases were analysed at the workshop; clinical details, often with photographs, histological sections, immunohistochemical results, treatment and patient outcome were discussed and recorded.

CD20 antigen may be expressed by reactive or lymphomatous cells of transformed mycosis fungoides: diagnostic and prognostic impact.

Mycosis fungoides (MF), the most common primitive cutaneous T-cell lymphoma, can undergo transformation in about 10% of cases. Transformed mycosis fungoides (T-MF) is often associated with the appearance of a CD20 component. The aim of this study was to analyze whether such cells are reactive or lymphomatous and to evaluate their prognostic impact.

Dermatitis cruris pustulosa et atrophicans--a frequent but poorly understood tropical skin condition--a case report from Burkina Faso.

Dermatitis cruris pustulosa et atrophicans (DCPA) is a benign inflammatory skin disease of the younger population in the tropics. Although this pustular skin condition of particular topography is frequently seen by dermatologists in tropical countries, its origin remains unknown. We report the case of a young woman with DCPA associated with prurigo nodularis.

Ichthyosiform mycosis fungoides.

Malignancy-associated acquired ichthyosis is well known, but the ichthyosiform subset of mycosis fungoides (MF) is rarely reported. We report on two patients with a clinical presentation for whom diagnosis of mycosis fungoides was established on histological grounds. In both cases, long term remission was obtained with non aggressive therapies.

MalignancyCase Report: Systemic Sarcoidosis Preceeding Acute Myeloid Leukemia.

The authors report the case of a 59-year-old woman who developed acute myeloid leukemia nine months after the resolution of systemic sarcoidosis treated by corticosteroid therapy. This rare case poses the questions of the physiopathogenic mechanisms, particularly a granulomatous reaction to leukemic antigens or to cytokines or of the role of an infectious agent.