Metastatic Merkel cell carcinoma uncommonly presents with an unidentified primary tumour. We report a patient who first presented with lichenoid dermatitis and was found to have Merkel cell carcinoma involving lymph nodes with an unknown primary site. With the rising incidence of Merkel cell carcinoma, it is important to recognize unusual manifestations of this disease as they may become more common in the future.
Tuberculosis can involve multiple organ systems concurrently. We report a case of simultaneous brain tuberculomas and scrofuloderma occurring in the same patient. Skin biopsies confirmed scrofuloderma and the patient was successfully treated for tuberculosis with resolution of the brain masses. This case illustrates the importance of dermatological manifestations of systemic disease as an accessible source for diagnosis and guidance in appropriate therapy.
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