Diagnostic Category: Suspicious for Malignancy.

Area of Science:

• Pathology
• Cytopathology
• Diagnostic Uncertainty

Background:

• The "suspicious for malignancy" category in pathology indicates uncertainty while providing risk stratification.
• This category applies to diverse cytomorphological features and clinical scenarios.
• It's used when neoplastic cells are insufficient or discrepant with clinical presentation.

Purpose of the Study:

• To clarify the appropriate use of the "suspicious for malignancy" category.
• To illustrate common pitfalls and malignant mimickers.
• To provide guidance on upgrading diagnoses using ancillary studies, even with limited material.

Main Methods:

• Review of cytomorphological features associated with the "suspicious for malignancy" category.
• Analysis of clinical scenarios prompting its use.
• Evaluation of ancillary studies for definitive diagnosis.

Main Results:

• "Suspicious for malignancy" reflects uncertainty but offers risk stratification.
• Insufficient neoplastic cells or discrepancies with clinical findings necessitate this category.
• Awareness of malignant mimickers is crucial for correct classification.

Conclusions:

• Improved illustration of "suspicious for malignancy" is needed.
• Understanding its pitfalls and appropriate use is essential.
• Ancillary studies can aid in upgrading diagnoses, even with scant material.