Saja Abo Thyab: Diagnostic Value of Skin Lesion Morphology
Saja Abo Thyab, Medical Laboratory Science Student, shared a post on LinkedIn:
“Not all skin lesions are the same… and every detail matters.
As medical laboratory professionals, we often focus on numbers, assays, and results – but behind every test is a patient, and sometimes the first clue starts with simple observation.
This image highlights different types of skin lesions, each carrying diagnostic significance:
- Macule – flat discoloration
- Papule and Nodule – raised solid lesions
- Vesicle and Bulla – fluid-filled lesions
- Pustule – pus-filled, often infectious
- Petechiae, Purpura, Ecchymosis – bleeding under the skin
- Plaque and Wheal – inflammatory responses
- Telangiectasia – dilated superficial vessels
- Comedo and Papilloma – structural skin changes
Why does this matter for us?
Because correlating clinical presentation and lab findings is what transforms results into accurate diagnoses.
For example:
- Petechiae may point toward platelet disorders
- Purpura could indicate coagulation abnormalities or vasculitis
- Pustules may suggest bacterial infection requiring microbiological confirmation
Takeaway:
Never disconnect the lab from the patient. Observing morphology can guide test selection, interpretation, and ultimately better patient care.”
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