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Journal of Cutaneous Pathology

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https://www.readbyqxmd.com/read/28644551/erythema-multiforme-like-lesions-in-primary-cutaneous-aggressive-cytotoxic-epidermotropic-cd8-t-cell-lymphoma-a-diagnostic-and-therapeutic-challenge
#1
Carlo Tomasini, Mauro Novelli, Daniele Fanoni, Emilio Francesco Berti
Primary cutaneous aggressive epidermotropic CD8+ cytotoxic T-cell lymphoma (pCAECD8+ CTCL), is an extremely rare, rapidly progressing cutaneous lymphoma, with frequent systemic involvement, first recognized as a distinct clinicopathologic entity by Berti et al in 1999. (1) As the name suggests, this entity has an aggressive behavior and exhibits marked epidermotropism on histopathologic analysis. Conventional treatment modalities for classic CTCL are often ineffective and the prognosis is poor with a median survival of 12 months...
June 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28632950/fibroblastic-connective-tissue-nevus-clinicopathological-and-immunohistochemical-study-of-14-cases
#2
Ilaria Pennacchia, Heinz Kutzner, Dmitry V Kazakov, Thomas Mentzel
BACKGROUND: We present herein a series of 14 lesions showing overlapping features with the newly defined benign cutaneous mesenchymal neoplasm labelled as fibroblastic connective tissue nevus (FCTN). METHODS AND RESULTS: Eight patients were male and five were female, ranging in age from 1 to 56 years. Lesions appeared as isolated nodules or plaques on the trunk (7 cases), the limbs (4 cases) and the neck (2 cases). Histologically, all cases were composed of bundles of bland spindle cells of fibroblastic/myofibroblastic lineage irregularly branching within the reticular dermis and along fibrous septa in the subcutis...
June 20, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28632948/nodular-cutaneous-amyloidoma-of-the-extremity-secondary-to-chronic-granulomatous-inflammation-in-setting-of-sarcoidosis
#3
Victoria Billero, Audrey A Jacobsen, Mariya I Miteva, Adam J Wulkan, Claudio Marasca, Roanelli Paolo
Soft tissue amyloidoma is a rare condition that presents primarily in the abdomen and/or mediastinum and more uncommonly on the extremities(1) . Soft tissue amyloidomas on the extremities have been associated with chronic inflammation, particularly when accompanied by AA-type amyloid deposition as seen in local trauma, surgery, hypertension, and diabetes(2) . To our knowledge, this is the first reported case of nodular cutaneous amyloidoma in the setting of systemic and cutaneous sarcoidosis. A 65-year-old woman presented with an asymptomatic subcutaneous nodule above her left lateral malleolus...
June 20, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28632917/miniaturization-of-sebaceous-glands-a-novel-histopathological-finding-in-pemphigus-vulgaris-and-pemphigus-foliaceus-of-the-scalp
#4
Marta Sar-Pomian, Joanna Czuwara, Lidia Rudnicka, Malgorzata Olszewska
BACKGROUND: Intraepidermal acantholysis is a characteristic histopathological feature of pemphigus. The histopathology of scalp biopsies in pemphigus has not been widely discussed in the literature, although the scalp is commonly involved in pemphigus. METHODS: A total of 32 consecutive patients with scalp involvement (seventeen with pemphigus vulgaris and fifteen with pemphigus foliaceus) were enrolled into the study. The histopathological examination of scalp biopsies was performed in all patients...
June 20, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28632906/improving-the-histologic-characterization-of-burn-depth
#5
Angela L F Gibson, Daniel D Bennett, Lauren J Taylor
BACKGROUND: Visual assessment of burn wound appearance is the standard of care to determine the depth of thermal injury but often incorrectly predicts wound healing potential. Histologic evaluation of hematoxylin and eosin (H&E) stained burn tissue is prone to subjectivity and is challenging for the novice. Lactate dehydrogenase (LDH) staining may offer a simplified and consistent technique to identify burn tissue viability. METHODS: Thirty tissue samples were obtained from six patients undergoing surgical excision for clinically determined deep partial thickness or full thickness burns...
June 20, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28632903/immunohistochemical-dissection-of-cystic-panfolliculoma-focusing-on-the-expression-of-multiple-hair-follicle-lineage-markers-with-an-insight-into-the-pathogenesis
#6
Masahiro Fukuyama, Yohei Sato, Yoshimi Yamazaki, Manabu Ohyama
Panfolliculoma (PF) is a rare benign tumor with signs of differentiation toward all components of the hair follicle (HF). Cystic panfolliculoma (CPF) is a subset of PF with histological similarity to trichofolliculoma making the differential diagnosis difficult in some cases. Immunohistopathological investigations of PF have been reported; however, previous studies focused mostly on the expression profile of the outer root sheath markers. A panel of antibodies was developed and used for the detection of the expression of cytokeratin (CK) 10, CK13, CK14, CK15, hair-hard keratin (AE13), and EpCAM within the lesion, supporting the differentiation of all epithelial lineages of the HF and the diagnosis of CPF...
June 20, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28628281/genomic-analysis-of-melanoma-evolution-following-a-30-year-disease-free-interval
#7
Jerry J Miller, Kristopher A Lofgren, Sarah R Hughes, Steven E Cash, Paraic A Kenny
Ultra-late melanoma recurrence is infrequent, poorly understood and, in most cases, difficult to unambiguously distinguish from a new primary melanoma. We identified a patient with a second melanoma diagnosed after a 30 year disease-free interval, and sought to determine if this new lesion was a recurrence of the original melanoma. Here we report the genomic sequence analysis of the exomes of two melanoma lesions isolated from the same individual in 1985 and 2015, and their comparison to each other and to the germline DNA of the patient...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28628256/cutaneous-involvement-in-luteinized-thecomas-with-sclerosing-peritonitis-ltsp-a-new-finding-in-a-rare-syndrome
#8
Jonathan D Ho, Jag Bhawan, Michael J O'Brien, Lynne J Goldberg
Luteinized thecomas with sclerosing peritonitis (LTSP) is a rare disease characterized by ovarian luteinized thecomas and associated fibrosing peritonitis. Cutaneous involvement has never been reported. We report a case of classical LTSP with skin involvement, outlining the clinical and histopathologic features of this novel presentation of a rare syndrome.
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28627712/acral-dermatofibrosarcoma-protuberans-with-myoid-differentiation-a-report-of-two-cases
#9
Tariq Al-Zaid, Hatim Khoja
Dermatofibrosarcoma protuberans (DFSP) is a low-grade mesenchymal neoplasm with a tendency for local recurrence; it is rarely metastatic. Dermatofibrosarcoma protuberans typically arises in the trunk and proximal extremities. However, it can arise in unusual sites such as the hands and feet. Several variants have been described, including DFSP with myoid differentiation, which is very uncommon. This variant tends to be observed more with the fibrosarcomatous variant, and it can be either in the form of myoid bundles and nodules with no vascular relationship or represent hyperplastic blood vessels within the tumor...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28627021/superficial-papular-neuroma-case-series-of-a-new-entity-r2
#10
Stephanie J T Chen, Rajiv M Patel, Christine P Hans, May P Chan, Douglas R Fullen
BACKGROUND: Dermal neural lesions arise in various circumstances and may be difficult to classify. METHODS: We describe the clinical, histopathologic and immunophenotypic features of a series of terminally-differentiated neural lesions not described previously, to our knowledge. RESULTS: Four cases from men aged 58-66 years were included. Some lesions reportedly bled, but no inciting trauma or prior biopsies were reported. None recurred after biopsy, with follow-up ranging from 19 to 113 months...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28627008/invasive-trichophyton-rubrum-mimicking-blastomycosis-in-a-patient-with-solid-organ-transplant
#11
Faezeh Talebi-Liasi, Michi M Shinohara
We present a case of tissue invasive Trichophyton rubrum (T. rubrum) histologically mimicking blastomycosis in a patient with kidney transplant on chronic immunosuppression. Invasive dermatophyte infections are rare, and present a diagnostic challenge to the dermatopathologist due to atypical clinical and histopathological presentations.
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28626950/myxoid-variant-of-primary-cutaneous-anaplastic-large-cell-lymphoma-first-two-cases
#12
Angel Fernandez-Flores, Ariana Eginli, David S Cassarino
Anaplastic large cell lymphoma (ALCL) is a CD30+ T-cell non-Hodgkin lymphoma with two main clinical presentations: primary cutaneous (pcALCL) and systemic (sALCL). While rare cases of myxoid sALCL have been reported, there are no previous cases of myxoid pcALCL reported. We present two unusual cases of pcALCL showing prominent collections of dermal mucin closely intermingling with the anaplastic lymphocytes. Patient 1 was a 30-year-old woman who presented with ulcerated nodules on her neck, abdomen, chest, and shoulders...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28626936/a-pilot-study-comparing-histological-and-immunophenotypic-patterns-in-stage-4-skin-graft-versus-host-disease-from-toxic-epidermal-necrolysis
#13
Haley Naik, Stephen Lockwood, Arturo Saavedra
Since the inception of bone marrow transplantation, clinicians have sought to distinguish stage 4 skin graft versus host disease (GVHD) from toxic epidermal necrolysis (TEN).(1-3) In certain contexts, it can be difficult to discern among these two entities, both clinically and histologically. However, the distinction is critical because both diseases can be life-threatening and their respective management and prognosis differ.
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28626898/plk-1-immunoreactivity-is-associated-with-metastases-in-cutaneous-melanoma
#14
Maciej Kaczorowski, Tomasz Borowiec, Piotr Donizy, Konrad Pagacz, Wojciech Fendler, Artur Lipinski, Agnieszka Halon, Rafal Matkowski
BACKGROUND: PLK-1 is one of the key regulators of cell cycle progression. Increased expression of PLK-1 was observed in several tumor types. METHODS: We immunohistochemically assessed PLK-1 expression in neoplastic and stromal compartments of 96 cutaneous melanomas, and analyzed associations between PLK-1 expression and clinicopathological characteristics. RESULTS: PLK-1 expression in cancer cells was not associated with basic clinical (e...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28626893/random-skin-biopsy-in-the-diagnosis-of-intravascular-lymphoma
#15
Panitta Sitthinamsuwan, Yingyong Chinthammitr, Penvadee Pattanaprichakul, Sanya Sukpanichnant
Intravascular lymphoma (IVL) is a relatively rare type of non-Hodgkin lymphoma (NHL). IVL is characterized by selective growth of large lymphoma cells within small blood vessels. IVL is most often B-cell type, and only rarely found to be T-cell type(1-3) or NK-cell type.
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28612388/dermatopathology-education-in-the-era-of-modern-technology
#16
REVIEW
Neda Shahriari, Jane Grant-Kels, Michael J Murphy
Continuing technological advances are inevitably impacting the study and practice of dermatopathology. We are seeing the transition from glass slide microscopy to virtual microscopy, which is serving both as an accessible educational medium for medical students, residents and fellows in the form of online databases and atlases, as well as a research tool to better inform us regarding the development of visual diagnostic expertise. Expansion in mobile technology is simplifying slide image attainment and providing greater opportunities for phone- and tablet-based microscopy, including teledermatopathology instruction and consultation in resource-poor areas with lack of specialists...
June 14, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28605142/aberrant-expression-of-fli-1-in-melanoma
#17
Nisha Ramani, Phyu P Aung, Wen-Jen Hwu, Priyadharsini Nagarajan, Michael T Tetzlaff, Jonathan L Curry, Doina Ivan, Victor G Prieto, Carlos A Torres-Cabala
FLI-1 (Friend leukemia integration site 1) nuclear transcription factor has been proposed as a suitable tool in the differential diagnosis of small round cell sarcomas. It has also been described as nuclear marker of endothelial differentiation. Expression of FLI-1 has been demonstrated in Ewing's sarcoma/ primitive neuroectodermal tumor (ES/PNET) and vascular neoplasms. In the present study, we describe two cases of metastatic melanoma with small round blue cell morphology that showed strong nuclear expression of FLI-1...
June 12, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28605051/ultrastructural-aspects-of-primary-anetoderma
#18
Joice Brião Göebel Pinto, Hiram Larangeira de Almeida, Luis Antônio Suíta de Castro, Nara Moreira Rocha
Anetoderma (anetos, Greek for slack) [1], also known as macular atrophy, is a rare elastolytic disorder characterized by circumscribed areas of flaccid skin due to focal loss of dermal elastic tissue, resulting in normochromic or erythematous papules and plaques with a wrinkled and atrophic surface.
June 12, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28593688/similarity-between-non-neural-granular-cell-tumors-and-granular-cell-fibrous-papules
#19
LETTER
Keisuke Goto
No abstract text is available yet for this article.
June 8, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28589672/an-international-survey-about-nail-histology-processing-techniques
#20
C Wlodek, P Lecerf, J Andre, B S Ruben, D de Berker
BACKGROUND: There is limited data on nail histopathology techniques. The objective of this study was to examine nail histopathology techniques currently in use internationally. METHODS: An online survey was sent to the European Nail Society and Council for Nail Disorders during 2015-16. RESULTS: There were fifty seven respondents, from twenty countries comprising dermatologists, podiatrists and pathologists. Specimens were unmarked or marked using ink or a suture and fixed in 10% formalin, from 6 to 48 hours before embedding in paraffin wax (90% (17/19), liquid nitrogen (frozen section, 1/19) and 2-hydroxyethylmethacrylate (plastic, 1/19)...
June 7, 2017: Journal of Cutaneous Pathology
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