Introduction:Sister Mary Joseph Nodule (SMJN) is a metastatic umbilical lesion secondary to a primary malignancy of any viscera, stomach and colon being most common in men, and ovary in women.Case report:In this article, we present the case of SMJN in a 54-year old female patient. An urgent diagnostic workup was performed with a computerized tomography of abdominal cavity and pelvis showing an expansive tumorous formation covering uterus with a carcinomatosis of peritoneum. After biopsy, immunohistochemical profile suggested adenocarcinoma of the ovarian origin. The patient was then referred to the Oncology Consilier of Gynecology Department and further continued followed by the Oncology team.

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Erythema ab igne (EAI) is a localized, hyperpigmented and reticulated dermatosis at sites of chronic heat exposure. Within longstanding skin lesions of EAI, hyperkeratotic lesions may emerge and can potentially transform into pre-malignant or malignant skin lesions. A 55-year-old woman presented for the evaluation of multiple hyperkeratotic lesions along with a reticular patterned hyperpigmentation on her right knee, an area that had repeated and prolonged exposure to a heat source over a period of several months. Based on her clinical history and the physical examination of her lesions, she was diagnosed as having a hyperkeratotic form of EAI. A skin biopsy was performed to rule out malignant alteration, but the histopathological findings were supportive of keratosis lichenoides chronica.