journal
https://read.qxmd.com/read/38642003/a-case-of-excisionally-remitted-indolent-nk-cell-enteropathy-in-the-oral-cavity-and-a-mini-review
#1
Xiangyun Li, Zhu Li, Xiaoge Zhou, Yuanyuan Zheng, Yanlin Zhang, Jianlan Xie
Benign natural killer cell enteropathy (NKCE) was first identified in the gastrointestinal (GI) tract. Notably, instances of NKCE have previously been observed at various sites other than the GI tract, including the gallbladder, lymph nodes, esophagus, and female genital tract. Typical NKCE manifests as an NK-cell immunohistological phenotype, with or without TCR rearrangement, and is characterized by the absence of Epstein-Barr virus (EBV) infection and protracted clinical progression. The misdiagnosis of NKT-cell lymphoma has resulted in some patients receiving chemotherapy, while in other instances, the patients' conditions resolved without treatment and showed no evidence of disease recurrence or progression during follow-up examinations...
April 20, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38613429/sebaceous-gland-atrophy-due-to-seborrheic-dermatitis-in-a-patient-with-alopecia-a-potential-pitfall
#2
Sena Zengin, Jacey Guthrie, Nicholas Zoumberos, Mugahed Hamza, Sara C Shalin
Seborrheic dermatitis is an inflammatory condition that usually presents with erythema, scaly greasy papules, and plaques affecting sebaceous gland-rich areas and predominantly involving the face and scalp. The diagnosis of seborrheic dermatitis can often be rendered based on the clinical presentation. However, in certain cases, a biopsy can be useful to distinguish it from clinical mimics such as psoriasis, discoid lupus, and rosacea. Prominent sebaceous gland atrophy without scarring has been well-described as an important and relatively specific clue for psoriatic or drug-induced alopecia...
April 13, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38606952/cutaneous-crystal-storing-histiocytosis-a-case-series-with-review-of-literature
#3
Haya A Homsi, Calvin Knapp, Shruti Agrawal, Shweta Bhavsar, Jennifer S Ko, Steven D Billings, Shira Ronen
Crystal-storing histiocytosis (CSH) is a rare condition in which crystals accumulate in the cytoplasm of histiocytes and is usually associated with a lymphoplasmacytic neoplasm. Cutaneous CSH is extraordinarily rare and limited to case reports in the literature. We report two cases of this disease with cutaneous involvement. Case 1 was a 65-year-old male with a 4-month history of a pruritic eruption that started as a solitary pink to skin-colored indurated plaque on the anterior neck before progressing to involve the whole neck, chest wall, and face...
April 12, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38570926/the-dermatopathologist-patient-consultation-program-a-pilot-study-on-patient-perspectives-and-interest
#4
JOURNAL ARTICLE
Jonathan Lai, Nina M D'Amiano, Jaroslaw Jedrych
BACKGROUND: Despite the integral contribution of dermatopathologists in diagnosing skin lesions, their role often remains unclear to patients, likely due to little face-to-face interaction. More healthcare systems have begun introducing patient-pathologist consultation programs that allow patients to discuss results with a pathologist and view tissue under a microscope. To our knowledge, only one study has been published exploring patient perspectives of these programs and no studies exist regarding interest in dermatopathology...
April 3, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38563529/clinical-onychoscopic-nail-clipping-and-histopathological-findings-of-malignant-onychopapilloma
#5
Dylan Haynes, Eckart Haneke, Adam I Rubin
This report describes the clinical, onychoscopic, nail clipping, and histopathologic features of a malignant onychopapilloma. A 71-year-old male presented to our outpatient clinic for a stable, asymptomatic lesion on his left middle finger that had been present for 2 years. Prior nail clipping histopathology showed nail plate thinning with subungual abnormal onychocytes. Clinical examination revealed a 2-mm-wide streak of longitudinal xanthonychia extending to the proximal nail fold, with distal hyperkeratosis and onycholysis...
April 2, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38563487/recurrent-inverse-necrotizing-infundibular-crystalline-folliculitis
#6
Marina Kristy Ibraheim, Leslie Storey, Jeffrey P North
Necrotizing infundibular crystalline folliculitis (NICF) is a rare type of necrotizing folliculitis. The disease typically manifests as folliculocentric papules arising in a seborrheic distribution. Only 23 cases exist in the literature. Most reported cases have arisen spontaneously, but a small number of drug-induced cases in the setting of epidermal-derived growth factor, vascular endothelial-derived growth factor, or PD-1 inhibitor therapy have been reported. Colonization by bacteria and/or yeast occurs frequently...
April 2, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38556256/fusion-driven-cutaneous-and-superficial-mesenchymal-and-adnexal-tumors-a-clinicopathologic-and-molecular-study-of-15-cases-including-a-novel-case-of-actb-zmiz2-rearranged-adnexal-carcinoma
#7
JOURNAL ARTICLE
Carina A Dehner, Emma F Johnson, Carrie N Wieland, Michael J Camilleri, Andre Kajdacsy-Balla, Andre M Oliveira, Kevin C Halling, Sounak Gupta, Ruifeng Guo
BACKGROUND: While the list of fusion-driven soft tissue neoplasms is expanding rapidly, their importance among cutaneous and superficial mesenchymal and adnexal neoplasms remains poorly understood. This challenge is especially evident in cases with ambiguous histopathology that are difficult to classify based on morphology. AIMS: Our goal was to investigate the benefits of next-generation sequencing in diagnosing complex cutaneous neoplasms. MATERIALS & METHODS: Departmental archives were searched for fusion-driven cutaneous neoplasms...
March 31, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38551170/the-virtual-dermatopathology-mentorship
#8
JOURNAL ARTICLE
Michelle A Pitch, Leonard C Sperling
The Covid pandemic necessitated changes in traditional mentorship and educational roles. We offer our experience in structuring a virtual dermatopathology mentorship in the midst of the pandemic. Virtual mentorships have many benefits including ease of access, lack of geographic restrictions, and financial savings, though there still remains an important and irreplaceable role for in-person relationships.
March 29, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38549288/giant-congenital-fibroblastic-connective-tissue-nevus-associated-with-vascular-anomalies
#9
H Thanasi, A Fabiano, V Baraldini, E Cattaneo, L Spaccini, M Napolitano, P Collini, Laura Moneghini
We described an unusual combination of fibroblastic connective nevus (FCTN) already present at birth with underlying vascular anomalies. Overall, the lesion appeared as a large purplish-brown mass in the groin region up to the third of the right thigh, with partial spontaneous regression during the first three months of life. The FCTN observed exhibited several unusual characteristics: it was congenital, large in size, and located in the lower limbs. Finally, it represented the first case described in which an FCTN arose in association with vascular anomalies...
March 28, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38549184/dermatology-residents-perspectives-on-virtual-dermatopathology-education
#10
JOURNAL ARTICLE
Tram B Ngo, Wei Niu, Zhide Fang, Logan Gold
BACKGROUND: Dermatopathology education accounts for 30% of U.S. dermatology residency training. The COVID-19 pandemic expedited the implementation of virtual dermatopathology in place of traditional microscopy for resident education. This study examined U.S. dermatology residents' perceptions of virtual dermatopathology, as research in this area is lacking. METHODS: An anonymous, confidential, institutional review board-approved survey was electronically distributed to U...
March 28, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38548711/trends-in-authorship-in-the-journal-of-cutaneous-pathology-1981-2020
#11
JOURNAL ARTICLE
Fahd Malik, Jacob T Tribble, Garth R Fraga
BACKGROUND: The increase in authors per scientific article in many different medical and scientific disciplines has raised concerns over ethical authorship. Trends in authorship in dermatopathology are unknown. METHODS: Cross-sectional study of a random sample of 200 articles from the Journal of Cutaneous Pathology (1981-2020). RESULTS: The number of authors per article increased by an estimated 96% between 1981 and 2020 (2.7-5.3), while the relative citation ratio decreased by an estimated 56% during the same period (1...
March 28, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38548658/multiple-primary-dermatofibrosarcoma-protuberans-tumors-in-a-single-patient-with-chromosomal-microarray-analysis-a-case-report-and-review
#12
Joseph S Durgin, Carli P Whittington, Mallory Joseph, Paul W Harms, Aleodor A Andea, Elisabeth A Pedersen, Emily H Smith, Kelly L Harms
Dermatofibrosarcoma protuberans (DFSP) is a cutaneous sarcoma with a high propensity for local invasion and recurrence. Although it is a rare event, the occurrence of multiple tumors in a single patient raises a diagnostic dilemma, as metastatic disease should be differentiated from multiple primary malignant events. In more than 90% of DFSP, a pathogenic t(17;22) translocation leads to the expression of COL1A1::PDGFB fusion transcripts. Karyotype analysis, fluorescence in situ hybridization, and RT-PCR can be useful ancillary studies in detecting this characteristic rearrangement, and sequencing of the fusion transcript can be used to support a clonal origin in metastatic and multifocal disease...
March 28, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38527927/a-rare-case-of-cutaneous-granular-cell-tumor-with-unusual-melan-a-expression-in-a-child
#13
Nina H Cheng, David Smith, Carla Errickson, Shaymaa Ashi
Granular cell tumors (GCTs) are rare, indolent neoplasms classically characterized by eosinophilic granular cytoplasm, infiltrations of polygonal cells in the collagenous stroma, and pustulo-ovoid bodies of Milian. We describe a case of a 10-year-old female presenting with a GCT of the upper arm, remarkable for positive Melan-A expression without additional melanocytic features. The differentiation between granular cells versus melanocytic neoplasms carries significant implications for clinical management, and such diagnoses should be considered carefully in the setting of unusual immunophenotypes...
March 25, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38527773/onychomatricoma-is-not-a-subtype-of-superficial-acral-fibromyxoma-can-immunohistochemistry-help-in-the-differential-diagnosis
#14
JOURNAL ARTICLE
Christophe Perrin, Michael Coutts
No abstract text is available yet for this article.
March 25, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38525523/numerous-multinucleated-giant-cells-in-cutaneous-epithelioid-angiosarcoma-and-pulmonary-metastasis-a-unique-observation-with-potential-diagnostic-pitfalls
#15
Yushi Kanatani, Yasuhiro Mitsui, Kohei Ogawa, Maiko Takeda, Fumi Miyagawa, Satoru Shinkuma, Takeshi Kawaguchi, Takaya Fukumoto, Hideo Asada
The histopathologic diagnosis of poorly differentiated cutaneous angiosarcoma can be challenging. We report a case of cutaneous epithelioid angiosarcoma with numerous multinucleated giant cells (MGCs) developing pulmonary metastasis. A 79-year-old man presented with a red-purple plaque on the scalp. A skin biopsy revealed epithelioid cell proliferation, admixed with numerous MGCs, and background hemorrhage. Vascular spaces were focally present and lined by atypical endothelial cells, including MGCs. Immunohistochemically, tumor cells, including MGCs, were positive for CD31, D2-40, and ERG...
March 25, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38499969/cutaneous-lymphoproliferative-disorders-back-to-the-future
#16
REVIEW
Rein Willemze
In the 1980s, immunohistochemistry and clonality analyses became instrumental in the recognition and definition of new types of cutaneous T-cell lymphoma (CTCL) and cutaneous B-cell lymphoma (CBCL) and the development of new classifications. By accepting loss of pan-T-cell antigens and clonal T-cell receptor gene rearrangements as important criteria to differentiate between benign and malignant T-cell proliferations, and monotypic immunoglobulin light-chain expression and clonal immunoglobulin gene rearrangements as crucial criteria to distinguish between benign and malignant B-cell proliferations, many cases, until then diagnosed as cutaneous lymphoid hyperplasia or pseudolymphoma, were reclassified as primary cutaneous CD4+ small/medium T-cell lymphoma (PCSM-TCL) or primary cutaneous marginal zone lymphoma (PCMZL), respectively...
March 18, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38481096/primary-cutaneous-nut-carcinoma-with-brd4-nutm1-fusion
#17
Ahmed Shah, Adrian Box, Thomas Brenn, Ashley Flaman
Nuclear protein in testis (NUT) carcinoma, molecularly defined by the NUTM1 gene rearrangement, is most commonly reported in young adults in the sinonasal tract, nasopharynx, or thorax. At these sites, NUT carcinoma is an extremely aggressive malignancy with dismal prognosis. Recently, five cases of primary cutaneous NUT adnexal carcinoma have been reported with BRD3 and NSD3 fusion partners. Although NUT adnexal carcinomas are shown to have metastatic potential, they may behave less aggressively than extracutaneous NUT carcinomas...
March 13, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38468572/anetoderma-after-disseminated-mpox
#18
Andrés Grau-Echevarría, Carolina Labrandero-Hoyos, Rodrigo Peñuelas-Leal, Malena Finello, Daniel Blaya-Imbernón, José Ángel García-García, María Dolores Berenguer-Romero, Víctor Alegre de Miquel, Amparo Pérez-Ferriols, Pablo Martínez-Calabuig, Pablo Hernández-Bel
Anetoderma or macular atrophy is a rare skin condition of unclear pathogenesis, often associated with autoimmune diseases and skin damage from various infections. Human immunodeficiency virus (HIV), syphilis, and poxviruses have been implicated in the development of anetoderma. A 37-year-old male patient with HIV and recent unprotected sexual encounters presented with more than 400 skin lesions, consistent with Mpox. Symptomatic treatment for Mpox resulted in acute symptom resolution. However, 8 months later he developed papular anetoderma lesions in areas previously affected by Mpox...
March 12, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38468567/primary-cutaneous-apocrine-carcinoma-with-rara-npepps-fusion
#19
Volha Lenskaya, Richard K Yang, Woo Cheal Cho
Gene fusions have emerged as crucial molecular drivers of oncogenesis in a subset of cutaneous adnexal neoplasms, including poroid neoplasms and hidradenomas. We present a unique case of primary cutaneous apocrine carcinoma harboring RARA::NPEPPS fusion, broadening the spectrum of fusion-associated cutaneous adnexal neoplasms. A 77-year-old African American male presented with an ulcerated thigh nodule. Histopathologically, the predominantly dermal-based adenocarcinoma exhibited papillary, micropapillary, cribriform, and solid growth patterns with central comedonecrosis, set in a fibrotic/desmoplastic stroma...
March 12, 2024: Journal of Cutaneous Pathology
https://read.qxmd.com/read/38444194/spitz-melanocytic-neoplasms-with-mlph-alk-fusions-report-of-two-cases-with-previously-unreported-features-and-literature-review
#20
Haneen T Salah, Richard K Yang, Sinchita Roy-Chowdhuri, Merrick I Ross, Phyu P Aung, Aimi T Rothrock, Carlos A Torres-Cabala, Jonathan L Curry, Victor G Prieto, Priyadharsini Nagarajan, Woo Cheal Cho
ALK-fused Spitz melanocytic neoplasms are a distinct subgroup of melanocytic lesions exhibiting unique histopathologic characteristics. These lesions often manifest as exophytic or polypoid tumors, characterized by fusiform-to-epithelioid melanocytes arranged in a nested, fascicular, or plexiform growth pattern. Several fusion partners of the ALK gene have been identified in spitzoid melanocytic neoplasms, with TPM3 and DCTN1 being the most prevalent. Less common fusion partners include NPM1, TPR, CLIP1, GTF3C2, EEF2, MYO5A, KANK1, and EHBP1...
March 5, 2024: Journal of Cutaneous Pathology
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