2,820 results match your criteria: "Keratoacanthoma"

Article Synopsis
  • * Early detection of multiple KAs is important for diagnosing underlying causes and preventing related health issues, which can improve patient quality of life and provide family counseling.
  • * Current research is limited and often based on small studies, so this work aims to review existing knowledge on multiple KAs, especially linked to genetic syndromes, and to propose a diagnostic algorithm for better clinical guidance.
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Gastrointestinal (GI) diseases can present with several extraintestinal manifestations, and cutaneous signs and symptoms are most frequent. Although conventionally GI and skin are considered two entirely separate organ systems, they are closely correlated in origin. An increasing amount of data highlights the complex relationship between GI and dermatological conditions.

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Article Synopsis
  • - A case study discusses a 64-year-old male with metastatic colorectal cancer who developed severe itching and new skin lesions after treatment with encorafenib and panitumumab, medications targeting cancer pathways.
  • - The patient showed a mix of skin lesions, including benign moles and keratoacanthomas, with further evaluation confirming a link between the skin reactions and the use of encorafenib, as validated by the Naranjo scale.
  • - Stopping the medications led to significant improvement in skin lesions, highlighting the importance of ongoing skin assessments for patients on BRAF inhibitors to manage side effects effectively.
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Keratoacanthoma versus Squamous-Cell Carcinoma: Histopathological Features and Molecular Markers.

Dermatopathology (Basel)

October 2024

Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA.

Considerable controversy exists within the field of dermatopathology in differentiating keratoacanthoma (KA) from squamous-cell carcinoma (SCC). KAs are rapidly growing, benign squamous tumors that are typically well differentiated. This controversy stems from the diverging perspectives on the management, classification, and diagnosis of each entity.

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Article Synopsis
  • The study investigates the role of Demodex mites in the development of eyelid papillomas, focusing on how their presence may influence the tumor's histomorphological characteristics.
  • Histomorphological examinations revealed demodectic infection indicators, such as cystic formations and remnants of the mite, in nearly half of the analyzed cases, found within tumor tissues and surrounding structures.
  • The findings suggest that these cavity defects created by mite activity may serve as indicators of Demodex infestation, with implications for understanding their impact on various eyelid tumors, including keratoacanthomas and senile keratosis.
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Article Synopsis
  • Distinguishing between benign and potentially malignant skin tumors is crucial in family medicine, and many benign tumors can be diagnosed based on their history, appearance, and growth patterns.
  • Procedures like biopsy or excision may be necessary if there's uncertainty about a diagnosis or if the lesion changes rapidly.
  • Treatment options vary based on the type of lesion and patient preference, with methods like excision, laser therapy, and cryotherapy commonly used; special considerations are needed for patients with darker skin to minimize risks like hypopigmentation.
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Article Synopsis
  • Cutaneous squamous cell carcinoma (cSCC) is the most prevalent form of skin cancer in dark-skinned populations, but research on its prevalence and treatment is mainly focused on white populations, particularly neglecting black Africans like Ethiopians.
  • * The study aimed to evaluate the prevalence and risk factors of cSCC among patients at a rehabilitation center in Addis Ababa, Ethiopia, using a combination of literature review and retrospective data analysis from 2011 to 2021.
  • * Results showed that cSCC accounted for 3.8% of total samples, with a majority of cases appearing in females and patients often presenting symptoms after more than a year; key findings included a high proportion of well-differentiated tumors
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Article Synopsis
  • Diagnosing basal cell carcinoma (BCC) in individuals with darker skin tones (dark phototypes IV-VI) is difficult due to varied presentations and fewer identifiable clues; dermoscopy can aid in identifying BCC in these patients.
  • This review provides a comparison of BCC's clinical and dermoscopic patterns in people of color to those in lighter-skinned individuals, identifying common mimickers like squamous cell carcinoma and melanoma.
  • Key dermoscopic features of BCC in darker skin include blue, black, and gray dots, with arborizing vessels being the primary indicator, while unique conditions in darker skin such as dermatosis papulosa nigra are also considered in differential diagnosis.
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Rotation flap: Advantages in skin lesions of the dorsum of the hand.

Hand Surg Rehabil

October 2024

Departamento de Anatomía Patológica, Facultad de Medicina, Universidad de Chile, Chile.

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Article Synopsis
  • This Corrigendum addresses errors found in the original article linked in the text.
  • It aims to clarify and correct specific information presented in the article.
  • Readers are encouraged to refer to the corrigendum for accurate and updated details regarding the original research findings.
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Article Synopsis
  • The mechanisms behind the development of skin tumors are still not fully understood, particularly regarding the roles of photosensitivity and phototoxicity.
  • Recent studies have linked specific nitrosamines, contaminants in common pharmaceuticals, to gene and phototoxicity in humans, raising concerns about their potential carcinogenic effects.
  • Long-term use of contaminated medications may contribute to skin cancer risk by interfering with tumor suppressor genes and activating oncogenes, affecting overall cancer development.
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Article Synopsis
  • * A 64-year-old man with a history of hypertension and diabetes developed multiple keratoacanthomas two weeks after his second booster dose, prompting diagnosis through physical and histopathological examinations.
  • * The patient's condition improved significantly with treatment using cemiplimab, suggesting a possible immune-mediated reaction from the vaccine, but further studies are necessary to assess treatment safety and effectiveness.
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Article Synopsis
  • The study focuses on conjunctival keratoacanthomas, rare eye lesions, by analyzing patient data from 2005 to 2023, including clinical characteristics and treatment outcomes.
  • Out of nine patients identified, most were middle-aged Hispanic males, with lesions commonly found in the right eye and on the temporal conjunctiva, showing rapid growth and specific imaging features.
  • Histopathological examination revealed distinct features such as keratin-filled lesions, and after surgical removal, most patients (except two lost to follow-up) showed no recurrence over an average follow-up period.
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Advantages of Nail Surgical Procedures Using a 3D Biomodel.

Skin Appendage Disord

August 2024

Universidade Federal Fluminense de Niterói, Rio de Janeiro, Brazil.

Article Synopsis
  • * In three cases of nail tumors, doctors used 3D models to create special tools and plan surgeries, making them more effective and less invasive.
  • * Overall, using 3D models can improve surgery quality and safety, plus help educate future doctors.
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Article Synopsis
  • The dermoscopy of squamous cell carcinoma (SCC) helps differentiate between types based on keratin, vascular, and pigment features.
  • Non-pigmented actinic keratoses have a "strawberry pattern," while pigmented actinic keratosis shows similarities to lentigo maligna but can be distinguished by specific signs like pigmented scales and erythema.
  • Dermoscopy is crucial for early detection of invasive SCC, with its presentation varying by tumor differentiation—keratin features in well-differentiated tumors and atypical vascular patterns in poorly differentiated ones.
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Background: Intralesional methotrexate injection (IL-MTX) is an appropriate strategy for treating epithelial crateriform tumors (ECTs) when surgical excision can result in functional or cosmetic defects; however, not all ECTs are responsive to this treatment.

Objective: This study aimed to evaluate the effectiveness of IL-MTX for ECTs and to determine the differences in clinical response according to the pathological features.

Methods: The medical records of patients treated with IL-MTX for their ECTs were retrospectively reviewed.

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A case report of squamous cell carcinoma mimicking interdigital intertrigo.

Oxf Med Case Reports

July 2024

Department of Dermatology and Venereology, Mohammed VI University Hospital, M3MF+GCG, La Nouvelle Ville Ibn Batouta, Tangier, Morocco.

Article Synopsis
  • Squamous cell carcinoma (SCC) is a common type of skin cancer that can affect the nails, exemplified by a 60-year-old male patient who developed a painful ulcer in his foot due to a prior misdiagnosis of a fungal infection.
  • Dermatological examination showed characteristics of SCC, and although the initial biopsy indicated keratoacanthoma, it did not reveal malignant features, leading to the eventual identification of moderately differentiated SCC in a follow-up biopsy.
  • Successful surgical resection was performed to treat the SCC, highlighting the importance of accurate pathology understanding and biopsy techniques in preventing progression of this form of skin cancer.
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Article Synopsis
  • - Tattooing has a long and diverse history, holding cultural, cosmetic, and medical importance, which makes understanding its complications crucial as the popularity of tattoos rises.
  • - Common issues with tattoos include hypersensitivity reactions and infections, often linked to poor hygiene practices during the tattooing process or while healing.
  • - This article provides a comprehensive overview of tattoos, covering their history, cultural relevance, potential complications, and implications for cancer diagnosis, helping both potential clients and medical professionals navigate the risks involved.
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Article Synopsis
  • Tattooing has become increasingly popular, but it is associated with certain skin lesions, including malignant tumors.
  • A review of cases revealed 160 instances of skin cancers linked to tattoos, showing a rise in reported occurrences, particularly with tumors arising from red ink.
  • Limitations of the study include inconsistent reporting in the literature and a small sample size, but raising awareness about tattoo-related skin cancers remains important as tattoo popularity grows.*
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