PubMed · 13350298
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P A SMITH. 1956. Multiple kerato-acanthomas.. https://pubmed.ncbi.nlm.nih.gov/13350298/
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Epidermolytic hyperkeratosis (EH) is an abnormality of epidermal maturation, most commonly due to mutations in keratins 1 and 10, which may be a congenital or an acquired defect. The term epidermolytic acanthoma was applied to a solitary discrete epidermal proliferation characterized by EH. Subsequently there have been several reports of disseminated epidermolytic acanthomas. We report a rare case of multiple epidermolytic acanthomas localized to the scrotum. With the aetiology of epidermolytic acanthoma unknown, trauma has been postulated as a possible cause. Our patient repetitively scratched his scrotum for 5 years and we believe that this action triggered his multiple scrotal epidermolytic acanthomas.
BACKGROUND: Although skin is the biggest organ of the body, cutaneous or subcutaneous metastasis from internal malignancies or primary skin cancers is very uncommon. OBJECTIVE: In this report, we present two cases of in-transit cutaneous metastasis in acantholytic pattern from a skin tumor on the face. METHODS: Both patients presented with the subcutaneous nodule and had history of multiple squamous cell carcinomas on the face. The epidermis was intact above the nodule. Computed tomography scan was performed, and subcutaneous located cystic lesions were seen. RESULTS: Nodules were excised and reported as acantholytic squamous cell carcinoma. There was no recurrence or distant metastasis. There were no early or late complications. CONCLUSIONS: These nodules were in-transit metastasis of the previous multiple squamous cell carcinomas of the face. Although patients with squamous cell carcinomas presenting as subcutaneous nodules of the head were presented in the literature, to our knowledge, this is the first report to present in-transit metastasis of acantholytic squamous cell carcinoma.
Pigmented lesions are commonly found in the mouth. Such lesions represent a variety of clinical entities, ranging from physiologic changes to manifestations of systemic illnesses and malignant neoplasms. Evaluation of a patient presenting with a pigmented lesion should include a full medical and dental history, extraoral and intraoral examinations and, in some cases, biopsy and laboratory investigations. In this paper, an algorithm is proposed for the assessment of pigmented lesions of the oral cavity, and 3 patients with such lesions are described.