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https://www.readbyqxmd.com/read/29742557/cutaneous-squamous-cell-carcinoma-with-sclerosing-features-an-uncommon-and-potentially-aggressive-variant
#1
Shira Ronen, Alejandro A Gru, Mary M Noland, David M Rowe, Mark R Wick
Sclerosing squamous cell carcinoma (SCC), also known as "desmoplastic" SCC, is a rare subtype of cutaneous malignancy. This variant is clinically significant because it is associated with an increased risk of local recurrence and metastasis. We herein present 16 examples of sclerotic SCC of the skin in 8 men and 3 women, with a median age of 66 years. The most common site of origin for this tumor is the skin of the head and neck, including the scalp (5 tumors in 2 different patients), forehead (3 cases), nasal ala (2 cases), neck (2 cases in the same patient), ear (2 cases), cheek (1 case), and chest (1 case)...
May 8, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29651355/cutaneous-adnexal-cylindroma-of-breast-epithelial-immunoreactivities-for-gata-3-mammaglobin-and-e-cadherin-do-not-equate-to-a-mammary-ductal-neoplasm
#2
A Halima, A M Pannunzio, E M Erstine, J S Ko, W F Bergfeld, R M Malaya, M B Frankel, B C Calhoun, C D Sturgis
Cylindromas are benign epithelial neoplasms derived from cutaneous eccrine adnexal structures. These tumors are most commonly encountered on the head, neck, and scalp of older women. In rare instances, solitary cylindromas may arise at other body sites. In the current case, a cylindroma of the skin of the breast was diagnosed by complete excision. Immunohistochemical studies confirmed the tumor cells to be immunoreactive with cytokeratin AE1/3, cytokeratin 5/6, cytokeratin 7, p63, and SOX10. The neoplastic cells were also noted to be immunoreactive with markers typically expected to be positive in ductal epithelium of the breast including GATA3, mammaglobin, and E-cadherin...
2018: Case Reports in Pathology
https://www.readbyqxmd.com/read/29629953/utility-of-ber-ep4-and-moc-31-in-basaloid-skin-tumor-detection
#3
Pavandeep Gill, Christopher Naugler, Marie S Abi Daoud
Ber-EP4 has been the traditional immunostain used for the detection of basaloid skin tumors. Recently, MOC-31 has shown be superior to Ber-EP4 in the detection of basosquamous basal cell carcinoma (BCC) and many centers are now using both Ber-EP4 and MOC-31 antibodies together to detect these lesions. The objective of this study was to compare the utility of using both Ber-EP4 and MOC-31 immunostains in the detection of basaloid skin tumors and to better characterize the previously unknown staining properties of MOC-31 in cutaneous lesions...
April 7, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29622469/-microcystic-adnexal-carcinoma-a-case-report
#4
Bastien Jean-Jacques, Jean-Jacques Michels, Alexis Veyssiere, Dima Haidar
We report a case of microcystic adnexal carcinoma in a 80-year-old woman. This is a rare malignant adnexal cutaneous tumor with glandular and follicular differentiation, rare, often asymptomatic, with late diagnosis and slow growth, locally aggressive and rarely metastatic. The distinction with other benign and malignant skin tumors is difficult.
April 2, 2018: Annales de Pathologie
https://www.readbyqxmd.com/read/29567896/syringocystadenoma-papilliferum-and-trichoblastoma-arising-in-the-nevus-sebaceous
#5
Feifei Wang, Yatong Wu, Zhancai Zheng, Yanping Bai
Nevus sebaceous (NS) is a clinically common benign tumor and has a high potential to develop into a great diversity of neoplasms of epidermal and adnexal origins. However, it is a rare phenomenon of the coexistence in a single NS with two or more skin tumors. We report a case of a 58-year-old woman with two kinds of neoplastic proliferation including syringocystadenoma papilliferum and trichoblastoma arising in NS on the scalp.
January 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29431200/gata3-staining-in-primary-cutaneous-apocrine-cribriform-carcinoma-usefulness-to-differentiate-it-from-breast-cancer-metastasis
#6
Mar Llamas-Velasco, Yosmar C Pérez-Gónzalez, Esteban Daudén, Arno Rütten
BACKGROUND: Primary cutaneous apocrine cribriform carcinoma (PCACC) is a rare tumor, clinically appearing as a solitary nodule, mostly involving extremities of females and this lesion usually raises a differential diagnosis with metastatic cribriform carcinomas, especially breast cancer. OBJECTIVE: To study GATA3 expression in a series of 14 primary cutaneous cribriform carcinomas and to test its usefulness to differentiate this tumor from metastatic breast cancer...
May 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29403175/cytomorphology-of-skin-adnexal-tumors-a-tale-of-two-scalp-swellings
#7
Hemlata Panwar, Garima Goel, Kaushik Majumdar, Deepti Joshi, Dinesh Asati, Neelkamal Kapoor
The primary and metastatic tumors of the skin can be effectively diagnosed by fine needle aspiration cytology (FNAC); however, the cytomorphological features of skin adnexal tumors are rarely described in the literature. We hereby describe the cytological features of two histologically confirmed cases of benign skin adnexal tumors. Case 1 is of a 46-year-old female who presented with an elevated firm nodule over the scalp. A cytological diagnosis of benign adnexal tumor possibly of sebaceous origin was given...
January 2018: Journal of Cytology
https://www.readbyqxmd.com/read/29352496/microcystic-adnexal-carcinoma-with-sebaceous-differentiation-three-cases
#8
Angel Fernandez-Flores, Mar Llamas-Velasco, Carles Saus, Anisha Patel, Arno Rutten
Microcystic adnexal carcinoma (MAC) is a low-grade malignant tumor of the skin. Histologically, this tumor shows a biphasic pattern, with cords and nests of basaloid cells, as well as keratin horn cysts. This biphasic histological appearance has been interpreted by some authors as a sign of double eccrine and folliculosebaceous-apocrine differentiation, whereas some other authors defend a solely eccrine differentiation. In this context, sebaceous differentiation in MAC would support the first option. However, there are only 3 cases of MAC with sebaceous differentiation in the literature, and all of them were reported before adipophilin was available, which in the appropriate context (eg, testing clear cells for sebaceous vs eccrine differentiation) is very useful...
April 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29314288/the-limitations-of-dermoscopy-false-positive-and-false-negative-tumours
#9
REVIEW
V Papageorgiou, Z Apalla, E Sotiriou, C Papageorgiou, E Lazaridou, S Vakirlis, D Ioannides, A Lallas
Dermoscopy has been documented to increase the diagnostic accuracy of clinicians evaluating skin tumours, improving their ability to detect skin cancer and better recognize benign moles. However, dermoscopically 'false-positive' and 'false-negative' tumours do exist. False-positive diagnosis usually leads to unnecessary excisions. False-negative diagnosis is much more dangerous, as it might result in overlooking a cancer, with severe undesirable consequences for the patient and the physician. Therefore, management strategies should mainly focus on addressing the risk of dermoscopically false-negative tumours...
January 5, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29240580/prognostic-significance-of-periadnexal-extension-in-cutaneous-melanoma-and-its-implications-for-pathologic-reporting-and-staging
#10
Tristan J Dodds, Serigne Lo, Louise Jackett, Omgo Nieweg, John F Thompson, Richard A Scolyer
Tumor thickness is the strongest predictor of outcome for clinically localized melanoma. Therefore, accurate assessment is critical for appropriate staging, reliable estimation of prognosis, and management. When melanoma extends alongside skin adnexal structures more deeply than the main tumor mass (periadnexal extension), it is currently unknown whether the prognosis is more accurately reflected by the deepest point of periadnexal tumor extension or the main tumor mass. This study sought to address this question...
March 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29200693/pilomatrix-carcinoma-masquerading-as-breast-carcinoma
#11
Trupti Pai, Shweta R Harwani, Asawari Patil, Ayushi Sahay, Tanuja Shet, Vani Parmar, Tabassum Wadasadawala, Sangeeta B Desai
Pilomatrix carcinoma is an exceedingly rare skin adnexal neoplasm derived from piliferous follicles, usually occurring in the head and neck region. Localization of this tumor in the breast is a rarity. We now report an unusual case of a 49-year-old female who presented with a palpable mass in the left breast for 2 years. Mammogram revealed a large, lobulated opacity with calcification, and positron emission tomography-computed tomography showed a metabolically active soft tissue mass measuring 15 cm involving all the quadrants of the left breast...
July 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29177692/dermatological-complications-after-solid-organ-transplantation
#12
REVIEW
Luigi Naldi, Anna Venturuzzo, Pietro Invernizzi
Organ transplant recipients (OTRs) are a population at high risk for cutaneous adverse events. Their early recognition and appropriate treatment is an important component of the clinical management of OTRs and should be optimally dealt with by dermatologists working in the context of a transplant dermatology clinic. Skin examination should be a standard procedure before performing organ transplantation to assess conditions which may be difficult to manage after the transplant procedure has been performed or which may represent a contraindication to transplantation, e...
February 2018: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/29103561/periocular-neoplasia-in-the-horse
#13
REVIEW
Krista Estell
Periocular neoplasia is common in horses. Treatment of the periocular skin and ocular adnexal structures can be technically challenging. Common neoplastic conditions, a treatment algorithm, surgical principles, and therapeutic modalities are reviewed. Regardless of the type of neoplasia found or the treatment that is applied, success is most likely when the neoplastic tumor is small.
December 2017: Veterinary Clinics of North America. Equine Practice
https://www.readbyqxmd.com/read/29057137/a-large-lumbar-adnexal-neoplasm-presenting-characteristics-of-eccrine-poroma-and-poroid-hidradenoma
#14
Adamantios Michalinos, Dimitrios Schizas, Antonios Sarakinos, Georgios Athanasiadis, Eleftherios Spartalis, Dimitrios Vlachodimitropoulos, Theodore Troupis
Poroma is a rare benign neoplasm that derives from eccrine sweat glands epithelium. Its histological subtypes, with respect to its position within skin layers, are eccrine poroma, hidroacanthoma simplex, poroid hidradenoma, and dermal duct tumor. Poromas commonly exhibit benign clinical behavior as they are usually small and asymptomatic and do not exhibit malignant behavior. Although their histological subtypes share similar histological characteristics, they rarely coexist in the same tumor. In this report we present the case of an unusual poroma in terms of histological and clinical behavior as it was large and presented histological characteristic of both eccrine poroma and poroid hidradenoma...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28937387/malignant-chondroid-syringoma-of-thigh-with-late-metastasis-to-lung-a-very-rare-case-report
#15
Mayur Kothiya, Neha Mittal, Rajiv Kumar, Shubhada Kane
Mixed/biphasic tumors include epithelial-myoepithelial tumors, pleomorphic adenoma, matrix-producing tumors, cutaneous mixed tumors such as chondroid syringoma (CS), malignant mixed tumors (carcinosarcomas), pulmonary blastomas (in lung), and many others. Morphology may show overlap between various mixed tumors. At any particular site, whether these tumors are primary or metastasis from other sites is difficult to determine, more so if primary is unknown or not disclosed. CS is a rare benign mixed/biphasic skin adnexal tumor, considered as cutaneous counterpart of pleomorphic adenoma...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28841778/dermatopathology-101-part-2-skin-tumors
#16
Julia Liersch, Amelie von Köckritz, Jörg Schaller
The present CME article highlights fundamental aspects with respect to the histopathology of the most common skin tumors (epidermal, adnexal, melanocytic, and mesenchymal), their laboratory workup, as well as the importance of supplementary immunohistochemical and molecular studies. The information provided is meant to assist experienced clinicians in choosing the correct biopsy technique and in interpreting dermatopathology reports, and to provide dermatology residents with a better understanding of dermatopathology...
September 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28794552/histopathological-analysis-of-skin-adnexal-tumors-a-three-year-study-of-110-cases-at-a-tertiary-care-center
#17
Kanwalpreet Kaur, Karuna Gupta, Deepika Hemrajani, Ajay Yadav, Kalpana Mangal
BACKGROUND: Skin adnexal tumors (SAT) encompass wide spectrum of benign and malignant tumors that differentiate toward one or more adnexal structures found in normal skin. Overall incidence of SATs is low yet they can be challenging to diagnose. AIMS: The aim of this study is to study the spectrum and microscopic features of SATs. MATERIALS AND METHODS: It was a retrospective cross-sectional, descriptive study conducted over a period of 3 years...
July 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28772003/case-of-chondroid-syringoma-mimicking-a-nodular-hidradenoma-a-diagnostic-pitfall-on-cytopathology
#18
Bahadur Shalini, Katyal Akshi, Nargotra Namrata, Soni Shilpi, Nain Manupriya
Limited literature is available on the use of fine needle aspiration (FNA) for skin tumors. Awareness of cytological features of these lesions is important to prevent misdiagnosis. A 45-year-old male, presented with slowly growing swelling over the thigh since 4 years. FNA from multiple sites yielded highly cellular smears with a dual cell population consisting of cells with small round nucleus scanty cytoplasm and polygonal cells with moderate to abundant cytoplasm. Extracellular basement membrane like material was also noted...
January 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28681210/sebaceous-carcinoma-a-review-of-the-scientific-literature
#19
REVIEW
Thomas Knackstedt, Faramarz H Samie
Sebaceous carcinoma is a rare and potentially aggressive cutaneous malignancy. Commonly reported in the periocular area and the head and neck region, sebaceous carcinoma can arise from any sebaceous gland in the skin. The clinical presentation may be nonspecific, and a biopsy is important to establish a diagnosis and to differentiate from mimickers including benign sebaceous neoplasms, other adnexal tumors, and basal cell carcinoma. A diagnosis of Muir Torre syndrome should be considered in patients presenting with a sebaceous neoplasm...
August 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28570391/spiradenocarcinoma-a-comprehensive-data-review
#20
Roxane D Staiger, Birgit Helmchen, Claudia Papet, Diana Mattiello, Urs Zingg
INTRODUCTION: Spiradenocarcinomas (SCs) are rare and potentially aggressive skin adnexal tumors. Optimal treatment has not yet been established. Experiences with this carcinoma are mostly presented in case reports and few case series. OBJECTIVE: To generate to a synopsis of published data on SC with regard to diagnostic procedures, treatment, and outcome. RESULTS: Median patient age was 60 years and sex distribution was balanced. Tumor manifestations were evenly distributed within the sweat gland carrying skin...
October 2017: American Journal of Dermatopathology
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