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Oesophageal sebaceous heterotopia with ducts mimicking epidermoid metaplasia: a rare diagnostic pitfall.
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Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA
Pleomorphic adenoma: Indeed, a versatile tumor.
J Cancer Res Ther
July 2024
Department of General Surgery, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Article Synopsis
- Pleomorphic adenoma is the most prevalent benign tumor found in salivary glands, primarily affecting the parotid gland but can also appear in other salivary glands.
- The tumor exhibits various types of metaplasia, including squamous, osseous, oncocytic, sebaceous, and adipocytic metaplasia, with tyrosine crystalloids sometimes present.
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Department of Scientific Affairs, Smart Health Tower, Sulaymaniyah, Kurdistan 46001, Iraq.
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- Epidermal inclusion cysts (EICs) are benign growths that are rarely found in lymph nodes, but one was discovered during a biopsy in a breast cancer patient.
- The case involves a 55-year-old woman diagnosed with invasive ductal carcinoma who underwent lumpectomy and sentinel lymph node biopsies, revealing tumor-free nodes with one containing a keratinous EIC.
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Benign mixed mammary tumor with sebaceous differentiation in a dog.
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State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, China.
We describe here a case of canine mammary benign mixed tumor with sebaceous metaplasia in the right fifth mammary gland of an eight-year-old, intact female Poodle dog. Grossly, the mass was firm with off-white, poorly lobulated cut surfaces. Histologically, the luminal epithelial cells and myoepithelial cells proliferated with cartilage formation and focal squamous metaplasia.
View Article and Find Full Text PDFOral cavity salivary gland pleomorphic adenoma: a histomorphological case series.
Ann Diagn Pathol
August 2024
Department of Pathology, Seth G.S. medical college and K.E.M.H., Parel, Mumbai 400012, Maharashtra, India. Electronic address:
Article Synopsis
- Pleomorphic adenoma (PA) is a common benign salivary gland tumor with varying histopathological features and a mix of epithelial and mesenchymal cells.* -
- A study of 10 PA cases revealed a mean age of 33.5 years, with no gender bias; all patients had asymptomatic masses, and 50% exhibited a cellular subtype.* -
- Key findings included capsular infiltration in 20% of cases, distinct cellular characteristics among subtypes, and significant features like capsular invasion and squamous metaplasia that may indicate a risk of malignancy.*
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