Paraneoplastic Dermatoses and Cutaneous Metastases.

Area of Science:

• Dermatology
• Oncology
• Pathology

Background:

• Paraneoplastic syndromes encompass a spectrum of skin manifestations associated with internal malignancies.
• The correlation between specific syndromes and tumor types varies, with some linked to multiple cancers.
• Cutaneous signs can also indicate underlying hematologic disorders.

Purpose of the Study:

• To review the various cutaneous presentations of paraneoplastic syndromes.
• To highlight skin manifestations suggestive of hematologic disorders.
• To discuss the common origins and histological features of cutaneous metastases.

Main Methods:

• Literature review of paraneoplastic syndromes and their cutaneous manifestations.
• Analysis of common skin presentations associated with internal malignancies and hematologic disorders.
• Review of histological findings in cutaneous metastases.

Main Results:

• Cutaneous metastases, frequently from breast and lung cancers, present as nodules, vascular lesions, or dermatitis.
• The typical histology of cutaneous metastasis involves dermal or subcutaneous nodules with epidermal sparing.
• Certain skin conditions strongly correlate with specific internal malignancies or hematologic disorders.

Conclusions:

• Cutaneous manifestations are crucial indicators of underlying internal malignancies and hematologic disorders.
• Histopathological examination and clinical correlation are essential for determining the origin of cutaneous tumors.
• Prompt dermatological evaluation can facilitate early cancer diagnosis.