1,280 results match your criteria: "Eccrine Carcinoma"

Hidradenocarcinoma (HAC) is a rare malignant neoplasm originating from eccrine sweat glands, often presenting diagnostic challenges because of its resemblance to other malignancies, particularly breast cancer when occurring in the chest region. This report describes 2 cases of HAC with axillary lymph node metastasis, both initially misinterpreted clinically. The first case involved a 63-year-old woman with a sternal mass, near the right breast, initially suspected to be a sebaceous cyst.

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Squamoid eccrine ductal carcinoma (SEDC) is an unusually rare neoplasm of the skin with a relatively high risk for local recurrence and a potential for metastasis. While typical presentations occur in older, male patients, this case report describes the diagnosis made in a pregnant patient in her third trimester. The clinical presentation, pathology, and treatment course of SEDC are outlined in this article.

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Diagnosis and Management of Malignant Epithelial Nail Unit Tumors.

Diagnostics (Basel)

October 2024

Dermatology Department, Saint Pierre and Brugmann University Hospitals, Université Libre de Bruxelles, 1000 Brussels, Belgium.

Article Synopsis
  • Malignant tumors of the nail unit, like squamous cell carcinoma and basal cell carcinoma, can be hard to diagnose because they often look like benign issues, making early detection important.
  • * This review examines various types of malignancies affecting the nail unit, discussing their clinical features, pathology, and surgical management challenges.
  • * Proper evaluation and treatment strategies are critical for improving patient outcomes and preserving nail function during surgery.*
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Familiar cylindromatosis in a Colombian family caused by a mutation in CYLD.

Ecancermedicalscience

September 2024

Department of Human Genetics, Fundación Valle del Lili, Cali 760026, Colombia.

Article Synopsis
  • The CYLD cutaneous syndrome leads to multiple skin tumors like cylindromas and spiradenomas, primarily affecting the face and head, with more frequent occurrence in women.
  • A Colombian family spanning three generations showcased early onset of this syndrome, confirmed by genetic analysis identifying a specific variant in the CYLD gene.
  • Understanding the genetic and environmental factors behind the syndrome is vital for developing better treatments and enhancing patient care.
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Article Synopsis
  • Squamoid eccrine ductal carcinoma is a rare tumor with characteristics that fall between squamous cell carcinoma (SCC) and certain sweat gland carcinomas, leading to debates on its classification.
  • The study examined 15 cases of this carcinoma, revealing that most cases had UV signature mutations and TP53 mutations as the most common genetic alterations.
  • Transcriptome analysis indicated that this carcinoma expresses 364 genes more and 525 genes less compared to SCC and sweat gland tumors, reinforcing the idea that it has an intermediate phenotype between these cancer types.
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Article Synopsis
  • A woman in her 50s with breast cancer had some strange red growths on her neck and chest, but didn’t feel any pain from them.
  • Doctors looked at the growths and thought they could be several different things, but after testing, they found out these growths were a rare type called eccrine poroma (EP).
  • The woman had the growths removed using a special heat method, and a year later there was no sign of them coming back, showing how important it is to recognize EP when looking at similar-looking skin issues.
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Squamoid eccrine ductal carcinoma (SEDC) is a cutaneous adnexal malignancy that is histologically challenging to distinguish from squamous cell carcinoma. We report three cases of this rare entity and review the present literature regarding clinical, histological, and immunohistochemical features. Patients presented with a single nodule or plaque lesion on their back and temple.

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Article Synopsis
  • Malignant sweat gland tumors, particularly eccrine porocarcinoma (EP), are rare, with about 18% of benign eccrine poroma (EPO) cases progressing to EP, highlighting a need for more understanding of EP biology and mutations involved in this transformation.
  • Transcriptome profiling of 23 EP and normal skin samples showed significant gene expression diversity and downregulation in EP, including specific genes that indicated a stepwise transition from normal skin to EPO to EP.
  • The study suggests that EP has a complex molecular nature linked to tumor development, with potential involvement of the p53 and EGFR pathways, and calls for further research with larger sample sizes to validate these findings.
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  • Porocarcinoma (PC) is a rare skin tumor primarily affecting older adults, originating from sweat glands and associated with a high risk of metastasis.
  • Differentiating PC from squamous cell carcinoma can be challenging, but markers like NUT expression and YAP1 fusions aid in diagnosis.
  • Treatment typically involves wide local excision, with Mohs surgery as a potential alternative; systemic therapies like pembrolizumab show promise, but guidelines for lymph node biopsy and radiotherapy are lacking.
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Article Synopsis
  • - Sweat gland neoplasms are complex and rare skin tumors, making them a tricky area for doctors who study skin diseases (dermatopathology) and recent research has revealed different biological markers for several types of these tumors.
  • - A study evaluated various sweat gland tumors in patients, using techniques like immunohistochemistry and RNA sequencing to help identify specific tumor types based on their unique features.
  • - Findings showed that specific tests, such as p63 IHC, BRAF V600E IHC, and MAML2 FISH, can effectively assist in accurately diagnosing sweat gland tumors, offering valuable tools for pathologists when the usual assessment is unclear.
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Thumb-Sparing Surgery for Digital Papillary Adenocarcinoma: A Case Report.

Cureus

April 2024

Orthopedic Surgery, Rothman Orthopaedics Florida at AdventHealth, Orlando, USA.

Digital papillary adenocarcinoma (DPA) is a rare eccrine sweat gland tumor that often appears as a solitary, non-painful, gradually enlarging mass. Clinically, DPA presents considerable challenges due to its high likelihood of recurrence and its tendency to spread to the lymph nodes and lungs. This case report focuses on the surgical treatment of a unique case of DPA located on the dorsal thumb in a 46-year-old male.

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Mohs surgery for squamoid eccrine ductal carcinoma.

J Cutan Aesthet Surg

January 2024

Central Clinical School, University of Sydney, The Skin Hospital, Darlinghurst, New South Wales, Australia.

Squamous eccrine ductal carcinoma is a rare cutaneous malignancy. It has the potential to locally recur and may occasionally metastasize. It presents a diagnostic challenge given its rare nature and overlapping histopathological features with other cutaneous carcinomas.

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Article Synopsis
  • Porocarcinoma is a malignant sweat gland tumor that can develop from benign poromas, and recent studies have identified specific genetic fusions like PAK1/2/3 in some cases.
  • In a study of 12 porocarcinoma patients, most were older males with tumors located on various parts of the body, and some patients developed distant metastases.
  • The research indicates that PAK1/2/3 fusions might drive cancer development in porocarcinomas that do not have YAP1 rearrangements, highlighting a potential target for treatment.
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Adnexal carcinomas are rare cutaneous malignancies arising from the eccrine and apocrine sweat glands, follicles and sebaceous glands. They occur mainly in elderly people. We report the case of a patient treated for locally advanced apocrine adnexal carcinoma of the thigh, with a review of the literature.

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Article Synopsis
  • A 23-year-old South Asian man developed a darkly pigmented papule on his scalp, which grew within a pre-existing warty plaque present since birth.
  • The papule showed characteristics indicative of basal cell carcinoma (BCC) when examined and biopsied, confirming it developed from a sebaceous naevus.
  • Sebaceous naevi are benign skin lesions that can develop into malignancies like BCC in a small percentage of cases, especially in adults.
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Background: Eccrine porocarcinoma (EPC) is a rare skin tumor that mainly affects the elderly population. Tumors often present with slow growth and a good prognosis. EPCs are usually distinguished from other skin tumors using histopathology and immunohistochemistry.

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Primary Mucinous eccrine carcinoma (MEC) is a rare malignant neoplasm of skin believed to arise from eccrine sweat gland commonly with periocular involvement. Here we report a case of 60-year male with a recurrence of unilateral nasomaxillary mass and epiphora. Imaging suggested nasolacrimal duct as probable site of origin.

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Article Synopsis
  • Most tumors result from genetic changes, but some are linked to viral infections like HPV, which can lead to specific skin conditions.
  • Epidermodysplasia verruciformis (EDV) is a rare HPV infection characterized by unique histological features and specific HPV subtypes.
  • The study discusses a particular type of EDV-related tumor found in two patients, highlighting consistent features and suggesting it could be a unique, reproducible form of skin tumor.
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