Malignant acanthosis nigricans with occult primary.

Indian J Dermatol Venereol Leprol

Department of Dermatology and Venereology, Medical College, Kottayarn-686 008, India.

Published: August 2007

AI Article Synopsis

  • - A patient exhibited generalized malignant acanthosis nigricans for 2 years without any symptoms, which usually indicates an underlying internal malignancy.
  • - Extensive medical tests showed that the patient had widespread metastasis of mucin-secreting signet cell adenocarcinoma from an unknown primary source.
  • - The patient also displayed other skin conditions, including acquired hypertrichosis lanuginose and cutaneous papillomatosis, which can also signal internal malignancies.

Article Abstract

A case of generalized malignant acanthosis nigricans of 2 years duration is reported. In spite of the long duration of this cutaneous marker of internal malignancy, the patient was completely asymptomatic and extensive investigations revealed the presence of widespread metastasis of mucin secreting signet cell adenocarcinoma from an unknown primary site. In addition the patient also had acquired hypertrichosis lanuginose and florid cutaneous papillomatosis which are also markers of internal malignancy.

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