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Saja Abo Thyab: Diagnostic Value of Skin Lesion Morphology
May 3, 2026, 16:14

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.”

Saja Abo Thyab: Diagnostic Value of Skin Lesion Morphology

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