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© 2014 The Authors. doi: 10.2340/00015555-1806 Journal Compilation © 2014 Acta Dermato-Venereologica. ISSN 0001-5555 Lymphomatoid papulosis (LyP) is characterised by a chronic course of years to decades of recurrent papulonodular lesions, each of which undergoes spontaneous regression after weeks or months (1). Recently LyP type D was identified as a new histolopathological variant simulating a primary cutaneous aggressive epidermotropic CD8+ cytotoxic T-cell lymphoma (pCAE-CD8+ CTCL) (2). Despite histologically alarming features, the patients have a clinical presentation and indolent course that are similar to those with typical cases of LyP.

A rare case of an epidermoid cyst associated with a skull defect is reported. The patient was a 59-year-old healthy woman from Japan who exhibited an elastic, soft, subcutaneous tumor on the left side of the parietal scalp for approximately 10 years without a history of trauma. On radiographic findings, a punched-out lesion was shown. Computed tomography of the cranium revealed a mass on the left parietal side that adhered to the cerebrum through the bone defect. Surgical excision resulted in remission. The tumor was peridurally located and showed no adhesion to the dura mater encephali. Histopathologically, a hybrid epidermoid cyst with no malignant features was seen. We hypothesized that long-term continuous pressure by the cyst resulted in a bone defect called scalloping.

The first Japanese case of alveolar hydatid disease with cutaneous-subcutaneous lesions is reported. The patient, a 58-year-old man who developed an indurated subcutaneous tumor on the right side of the abdomen, had had partial hepatectomy of the right lobe for echinococcosis thirteen years earlier. Clinically, the tumor was adherent with a fistulosis communication to deeper structures. Histopathologically, multiple PAS-positive cuticular layers with foreign body granulomas and fibrosis were observed between the dermis and subcutaneous fatty tissue. Surgical excision of the swelling provided the patient with temporary relief. To our knowledge, only eight cases of subcutaneous alveolar hydatid disease have been reported throughout the world. Ours, the ninth case, highlights the importance and difficulty of treating of alveolar hydatid disease.

Papillary eccrine adenoma (PEA) is a rare cutaneous tumor which histopathologically presents numerous intradermal tubular structures with inward papillary projections. Only a few cases of PEA have been reported recently. We report a case of PEA of a 58-year-old Japanese man. The marked hyperkeratosis and pits gave the tumor the clinical appearance of a burst-open pomegranate. Compact hyperkeratosis within proliferated epidermis contained spiral ducts mimicking intraepidermal eccrine sweat ducts histopathologically. These keratinous structures were thought to correspond to the pores. Several tubular structures running up to the overlying thickened epidermis were observed in the upper dermis. With these findings and with immunohistochemical studies, we proposed that this tumor originated from eccrine sweat ducts.

DISCUSSION Sir, Tacrolimus ointment is an immunosuppressive agent Adult patients with a long history of atopic dermatitis that interferes with cell-mediated immunity (1, 2). It on the face and/or neck can be diYcult to treat. has proved eYcient in atopic dermatitis, particularly in Tacrolimus ointment, which is an immunosuppressive adults who suVer from facial dermatitis. We report agent that interferes with cell-mediated immunity (1, 2), a case of atopic dermatitis in which episodes of has been successfully applied to intractable cases of Kaposi’s varicelliform eruption and herpes simplex virus (HSV ) infection occurred repeatedly when the dermatitis was treated with tacrolimus ointment.