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Related Experiment Videos

[Reticular lentigo]

S Kaddu1, H P Soyer, I H Wolf

  • 1Universitätsklinik für Dermatologie und Venerologie, Graz.

Der Hautarzt; Zeitschrift Fur Dermatologie, Venerologie, Und Verwandte Gebiete
|March 1, 1997
PubMed
Summary
This summary is machine-generated.

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Reticulated lentigo is a distinct pigmented skin lesion. Histopathology reveals epidermal hyperpigmentation and unique rete ridge changes, differentiating it from melanoma.

Area of Science:

  • Dermatology
  • Pathology
  • Dermatopathology

Context:

  • Reticulated lentigo, also known as ink spot lentigo, presents as a peculiar pigmented skin lesion.
  • Previous descriptions include acquired reticulated lentigo and reticulated melanotic macule.
  • The condition often affects individuals with fair skin, light hair, and blue eyes.

Purpose:

  • To investigate the clinical and histopathologic characteristics of reticulated lentigo.
  • To differentiate reticulated lentigo from melanoma in situ.
  • To establish reticulated lentigo as a distinct clinicopathologic entity.

Summary:

  • Five patients (4 males, 1 female; age 16-57) presented with single, black macules (4-6 mm) on the upper back, exhibiting irregular peripheral extensions.

Related Experiment Videos

  • Dermatoscopy confirmed a reticulated pattern, with clinical diagnoses including melanoma in situ in 4 out of 5 cases.
  • Histopathology showed sharply circumscribed lower epidermal hyperpigmentation, elongated rete ridges, normal/increased melanocytes, and dermal melanophages.

    • Impact:

    • Reticulated lentigo exhibits characteristic clinical, dermatoscopic, and histopathologic features.
    • These features support its classification as a distinct clinicopathologic entity.
    • Understanding these features aids in accurate diagnosis and differentiation from malignant lesions.