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Polymorphous sweat gland carcinoma

S Suster1, T Y Wong

  • 1Arkadi M. Rywlin Department of Pathology, MOunt Sinai Medical Center, Miami Bech, FL 33140.

Histopathology
|July 1, 1994
PubMed
Summary
This summary is machine-generated.

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A new skin cancer, polymorphous sweat gland carcinoma, presents as slow-growing nodules on extremities. This low-grade malignant tumor requires careful diagnosis and conservative surgical removal.

Area of Science:

  • Dermatopathology
  • Surgical Oncology

Background:

  • Cutaneous neoplasms with eccrine adnexal differentiation represent a diagnostic challenge.
  • Understanding rare skin tumors is crucial for accurate diagnosis and treatment.

Observation:

  • Nine cases of a distinctive cutaneous neoplasm with eccrine adnexal differentiation were identified.
  • These tumors exhibited varied histological patterns and low-grade malignant behavior.
  • Lesions presented as large, slow-growing dermal nodules, predominantly on extremities.

Findings:

  • The proposed term is polymorphous sweat gland carcinoma.
  • Histology revealed a cellular proliferation with diverse growth patterns (solid, trabecular, tubular, pseudopapillary, cylindromatous).
  • Moderate cytological atypia, mitoses, and stromal changes were noted, with focal eccrine differentiation evident in all cases.

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Implications:

  • Polymorphous sweat gland carcinoma should be included in the differential diagnosis of dermal neoplasms.
  • Complete, conservative surgical excision is the recommended treatment.
  • Potential for local recurrence and regional lymph node metastasis exists, necessitating vigilant follow-up.