Related Experiment Video
Updated: Feb 13, 2026
14:43
Synthesis of Keratin-based Nanofiber for Biomedical Engineering
Published on: February 7, 2016
16.0K
Keratinizing pleomorphic adenoma: An unusual case report
Aanchal Tandon1, Rohit Jaiswal1, Safia Siddiqui1
1Department of Oral Pathology and Microbiology, Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
Journal of Oral and Maxillofacial Pathology : JOMFP
|March 2, 2018
Summary
Pleomorphic adenoma, a common salivary gland tumor, can show extensive squamous metaplasia. This rare variant with keratin cysts may mimic malignancy, requiring careful microscopic evaluation.
Area of Science:
- Oral pathology
- Surgical pathology
- Head and neck oncology
Background:
- Pleomorphic adenoma (PA) is the most common benign salivary gland neoplasm.
- PAs display diverse histological features, including differentiation into various cell types.
- Squamous metaplasia is an uncommon feature in PAs.
Observation:
- This report details a case of pleomorphic adenoma in a minor salivary gland of the hard palate.
- The tumor presented as a slowly enlarging mass.
- Microscopic examination revealed extensive squamous metaplasia and keratin cyst formation.
Findings:
- The extensive squamous metaplasia and keratin cysts in this PA case mimicked malignant salivary gland tumors.
- Differential diagnosis included mucoepidermoid carcinoma and squamous cell carcinoma.
- Histological features confirmed the benign nature of the pleomorphic adenoma despite its unusual presentation.
Implications:
- Recognizing this rare variant of pleomorphic adenoma is crucial for accurate diagnosis.
- Extensive squamous metaplasia can lead to misdiagnosis if not carefully evaluated.
- This case highlights the importance of thorough histopathological examination in salivary gland tumors.
Related Concept Videos
01:16Unusual Results
3.9K
Unusual results are those that have a very low chance of occurring. Unusual results can be identified using probabilities and the range rule of thumb. In problems involving probability, unusual results can be observed in 2 instances – an unusually high number of successes or an unusually low number of successes.
According to the range rule of thumb, any value above or below two standard deviations, 2σ from the mean, μ is considered unusual.
Maximum unusual value =...
According to the range rule of thumb, any value above or below two standard deviations, 2σ from the mean, μ is considered unusual.
Maximum unusual value =...
3.9K
01:07z Scores and Unusual Values
11.1K
The z score is one of the three measures of relative standing. It describes the location of a value in a dataset relative to the mean. z scores are obtained after the standardization of the values in a dataset. The z score for the mean is 0.
This score indicates how far a value is from the mean in terms of standard deviation. For example, if a data value has a z score of +1, the researcher can infer that the particular data value is one standard deviation above the mean. If another data...
This score indicates how far a value is from the mean in terms of standard deviation. For example, if a data value has a z score of +1, the researcher can infer that the particular data value is one standard deviation above the mean. If another data...
11.1K
01:24Data Reporting and Recording
5.5K
Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
5.5K
01:25Types of Reports I: Hands-off Report
1.6K
A hand-off report, also known as a change-of-shift report, is a crucial nursing process that ensures the smooth transition of patient care responsibilities between nursing staff.
Following are the key components and categories of hand-off reports:
Purpose and Process:
Following are the key components and categories of hand-off reports:
Purpose and Process:
1.6K
01:21Types of Reports II: Incident or Occurrence Report
1.3K
An Incident or Occurrence Report in a healthcare setting is a crucial document used to record any unexpected occurrence that may or may not have affected a patient, employee, or visitor. Such reports are critical to improving patient safety and include all details leading up to and including the event.
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...
1.3K
01:26Types of Reports III: Telephone and Verbal Reports
1.0K
Telephone and Verbal Reports in healthcare settings are two communication methods for conveying therapeutic instructions from healthcare providers to nurses or other healthcare staff.
Here's an overview of each type:
Telephone Orders
Here's an overview of each type:
Telephone Orders
1.0K