title: Darier-Roussy Sarcoidosis Mimicking Metastatic Breast Cancer.
abstract: Subcutaneous sarcoidosis (also known as 'Darier-Roussy sarcoid') is a cutaneous condition characterized by numerous deep-seated nodules on the trunk and extremities. Coexistence of sarcoidosis and breast cancer are reported in the literature, but there will always be a chance of misdiagnosis. It is very crucial to obtain a tissue diagnosis of suspicious metastatic lesions. We report a case of breast cancer presenting with a subcutaneous sarcoid lesion masquerading as a metastatic lesion. A 50-year-old female patient, who had had cancer of the left breast, was on hormone therapy 2 years after treatment with surgery, radiotherapy and chemotherapy. The patient presented with a sudden onset of a forehead subcutaneous swelling mimicking metastasis which on excision biopsy was proved to be sarcoidosis. In India, sarcoidosis is reported rarely. We have to keep in mind that there is a chance of the metastatic lesions being of sarcoidosis origin or another granulomatous disease. To avoid misdiagnosis, it is better to obtain a tissue diagnosis.
authors.affiliation: Department of Radiation Oncology, Kidwai Memorial Institute of Oncology, Bangalore, India.
authors.forename: Lokesh
authors.initials: L
authors.lastname: Viswanath
authors.forename: Siddanna
authors.initials: S
authors.lastname: Pallade
authors.forename: B
authors.initials: B
authors.lastname: Krishnamurthy
authors.forename: T
authors.initials: T
authors.lastname: Naveen
authors.forename: B L
authors.initials: BL
authors.lastname: Preethi
authors.forename: K P R
authors.initials: KP
authors.lastname: Pramod
authors.forename: Obula
authors.initials: O
authors.lastname: Reddy
authors.forename: G
authors.initials: G
authors.lastname: Padma