Publications by authors named "Gianmarco D Bigotto"

Article Synopsis
  • Primary cutaneous spindle B-cell lymphoma is a rare form of skin lymphoma showing unique spindled B cells and shares similarities with both indolent and aggressive B-cell lymphomas.
  • The report discusses a specific case of this lymphoma in a patient, presenting as a long-lasting patch of scar-like hair loss.
  • Additionally, the authors include a thorough review of previously documented cases to provide context and insights into this unusual condition.
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Background: Alopecia areata (AA) is an organ-specific autoimmune disease that affects the hair follicles of the scalp and the rest of the body causing hair loss. Due to the unpredictable course of AA and the different degrees of severity of hair loss, only a few well-designed clinical studies with a low number of patients are available. Also, there is no specific cure, but topical and systemic anti-inflammatory and immune system suppressant drugs are used for treatment.

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Article Synopsis
  • Melasma is a common skin condition that's hard to treat, and assessing the depth and distribution of pigmentation is crucial for effective treatment.
  • Non-invasive imaging techniques like reflectance confocal microscopy (RCM) are helping to evaluate melasma by providing detailed insights into pigment location within the skin layers.
  • The study highlights two main types of melasma (epidermal and mixed) and emphasizes RCM's role in monitoring treatment effectiveness and identifying factors that influence treatment outcomes.
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Melanotic cutaneous lupus erythematosus (LE) is a newly described clinical variant of chronic cutaneous LE, presenting with localized or diffuse brownish or grayish macular and reticulated pigmentation in the absence of erythema, scaling, atrophy, scarring, or telangiectasia. The diagnosis is based upon histopathology, which demonstrates the characteristic features of LE with an interface vacuolar dermatitis with melanophages, and a superficial and deep, perivascular and periadnexal lymphocytic infiltrate with mucin deposition. Herein, we describe a case of a 61-year-old White male presenting with melanotic cutaneous LE with a blaschkoid distribution on his face in which the histopathological phenomenon of "true melanocytic nests" in the setting of a lichenoid pattern was seen.

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Lichen Planus Pigmentosus (LPP) is an uncommon variant of lichen planus characterized by the development of dark greyish-brown macules and patches primarily affecting sun-exposed areas. Histologically, it presents with lichenoid interface dermatitis with many melanophages. In select cases, the presence of melanocytic nests or pseudomelanocytic nests within LPP lesions has been documented, posing a diagnostic challenge.

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