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Skin coloured lumps and bumps – 12 cases

Skin coloured lumps and bumps may be difficult to distinguish one from another. It is helpful to consider body site, location within the skin, size, consistency and morphology. Some common lesions are described here.

First, a reminder about terminology in dermatology.

  • A papule is a small palpable lesion (less than 0.5 cm)
  • A nodule is a larger rounded lesion
  • A plaque is a flat palpable lesion
  • A cyst is fluctuant because it contains fluid or semi-fluid material

For each of the twelve cases, study the image(s) and then answer the questions. You can click on the image to view a larger version if required.

Each case should take approximately 2 minutes to complete. There is a list of suggested further reading material at the end of the quiz.

Case 3

Chickenpox scar

Firm papules, nodule or plaques may be due to a hypertrophic or keloid scar. In the case illustrated there was a clear history of preceding chickenpox, but the cause is not always recognised.

Mark question

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