Background: Herpes simplex virus (HSV) infections are frequent. However, HSV hepatitis is rare and may lead to a life-threatening condition. Case Report: A 68-year-old patient with a locally advanced and inoperable esophageal carcinoma was treated with induction chemotherapy and combined chemoradiation. After a total of 9 weeks of treatment, he developed fulminant liver failure of unknown origin and died a few days later. Surprisingly, the post mortem examination revealed an HSV infection of the esophagus and an HSV-associated necrotisizing hepatitis. Conclusion: In this immunocompromised patient, we postulate an HSV-associated esophagitis that led to viremia and fulminant hepatitis. Especially in immunocompromised hosts, HSV hepatitis should be considered in the differential diagnosis in patients with anicteric hepatitis and marked elevation of transaminases. A liver biopsy is the quickest and most definitive diagnostic tool to diagnose HSV hepatitis. If this is not possible because of severe coagulopathy, polymerase chain reaction for HSV DNA should be performed. Awaiting diagnosis, a prompt empirical treatment with acyclovir has to be discussed in case of a characteristic biochemical profile.

Malignant blue nevi are a rare variant of cutaneous melanoma often associated with metastatic disease and poor prognosis. Information on the treatment of this condition is limited. This case study reports the use of intralesional interferon -alpha2b (IFN-alpha2b) as a salvage option in a male patient with a congenital blue nevus on the right buttock. After initial diagnosis, the primary lesion (lesion 1) was partially resected and the patient received aggressive treatment with radiotherapy and concomitant polychemotherapy (cisplatin, vinblastine, and dacarbazine). However, the lesion progressed and the patient was treated second-line with carboplatin, paclitaxel, and sorafenib. Although this treatment stabilized the primary lesion, at cycle 6, the patient developed a measurable locoregional metastasis (lesion 2). At this stage, the patient was treated with intralesional IFN-alpha2b twice weekly at lesion 2, followed by weekly intralesional IFN-alpha2b therapy to both lesions, which resulted in partial disease regression. Biweekly maintenance therapy with IFN-alpha2b administered to both lesions maintained a partial response (ongoing at 23+ mo) and allowed complete occupational rehabilitation. Thus, intralesional therapy with IFN-alpha2b may be a viable treatment option in patients with locally advanced melanoma who have progressed on prior radiotherapy, polychemotherapy, and/or multikinase antiangiogenic-based therapy.

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