Hidradenoma Papilliferum Occurring on the Nasal Skin

Hidradenoma papilliferum is a rare benign neoplasm that usually occurs in the female anogenital area. We present a 43-year-old female with a non-anogenital (ectopic) hidradenoma papilliferum on her nose. The patient had had a skin-colored subcutaneous nodule on her nose for 7 years. The histopathological findings showed variously shaped cystic spaces in the tumor. And the lumina were surrounded by a single or double layer of cell which showed decapitation secretion. In the English dermatological literature, only one case of ectopic hidradenoma papilliferum arising in nasal skin has been reported. Hence we suggest hidradenoma papilliferum occurring on the nasal skin is a peculiar and interesting event.

Generalized Discoid Lupus Erythematosus Occurring in a Systemic Lupus Erythematosus Patient / 대한피부과학회지

Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by multisystem involvement. Skin is the second most frequently affected organ in SLE, and various forms of cutaneous LE (CLE), such as acute, subacute, and chronic CLE, are observed in higher than 75% of patients with SLE. Discoid LE (DLE) is the most common form of chronic CLE, and a small subset of patients with SLE also has concomitant DLE. A 32-year-old woman diagnosed with SLE 6 years ago visited our clinic with a 2-month history of multiple hyperpigmented macules and patches over the entire body. She also complained of arthralgia, auditory, and visual hallucinations. Her clinical presentation, laboratory findings, and histopathologic features were consistent with generalized DLE and aggravation of her SLE. Herein, we report an unusual case of generalized DLE occurring in a patient with SLE.

Steatocystoma Multiplex Treated with a Suction-assisted Cartilage Shaver / 대한피부과학회지

Steatocystoma multiplex is a rare autosomal-dominant disorder characterized by asymptomatic multiple, skin-colored to yellowish nodules on the trunk, proximal extremities, and axillae. Although surgical excision is the most effective method, treatment is difficult when lesions occur in multiple numbers. Therefore, various treatments such as CO2 laser therapy, needle aspiration, and oral isotretinoin have been attempted, but results are variable. A 37-year-old man presented with multiple skin-colored subcutaneous nodules on the abdomen and both axillae. A histopathological examination was consistent with steatocystoma multiplex. The lesions were removed by dermal shaving with a suction-assisted cartilage shaver. It was an effective therapeutic method for multiple lesions with no significant adverse events. Herein, we report a case of steatocystoma multiplex treated with a suction-assisted cartilage shaver.

Giant Acquired Digital Fibrokeratoma Occurring on the Left Great Toe

Acquired digital fibrokeratoma is an uncommon, benign fibrous tumor which usually occurs in adults as a solitary lesion. The most frequent locations are fingers and toes and the size of the tumor is generally small, around 3~5 mm. An 18-year-old female presented with a solitary, skin-colored, round and protruded nodule of the left great toe. The size of nodule was 2.5x1.6x1.4 cm. Histopathologic examination revealed typical findings of acquired digital fibrokeratoma. Herein, we report a giant acquired digital fibrokeratoma.

A Case of Linear Focal Elastosis with a Family History

Linear focal elastosis is an uncommon disorder typically occurring in the back region, which clinically presents as band-like striae, having a histological focal increase in abnormal elastic fibers. Until now, linear focal elastosis occurring in patients with a family history have been rarely reported. Here, we present one such case, of linear focal elastosis which occurred in a brother and sister.

A Case of Linear Lichen Planus Pigmentosus

Lichen planus pigmentosus (LPP) is chronic pigmentary disorder that shows diffuse or reticulated hyperpigmented, dark brown macules on the sun-exposed areas such as the face, neck and other flexural folds. Clinically, it is different from classical lichen planus because LPP has a longer clinical course and it manifests with dark brown macules. In case of LPP, involvement of the scalp, nail or mucosal area is rare. The histopathological findings of the lesions show an atrophic epidermis, the presence of melanophages and a vacuolar alteration of the basal cell layer with a sparse lymphohistiocytic lichenoid infiltration. Although there have been a few reports of LPP, there have only 3 cases of linear LPP along the lines of Blaschko in the Korean dermatologic literature. Our patient had lesions on the neck and chin with a linear pattern. In this report, we describe a very rare case of LPP with a linear distribution related to Blaschko's lines on the neck and chin areas.

Multiple Annular Tufted Angioma / 대한피부과학회지

Tufted angioma is a rare, slow-growing, benign, vascular tumor that usually occurs in children. It appeared as an erythematous to red-brown, indurated papule on the trunk or neck. Histopathologic examination shows multiple capillary lobules in a cannon ball appearance scattered throughout the dermis. We present here a 32-year-old woman with multiple annular lesions on her right thigh, which started as red papules and they progressed with annular extension and central regression for 3 years. The histopathologic findings were compatible with tufted angioma. The lesions were treated with 3 sessions of sclerotherapy. We report here on an unusual tufted angioma that occurred as multiple lesions which showed annular extension with central regression.

A Case of Superficial Acral Fibromyxoma Occurring after Trauma in a Childhood Patient / 대한피부과학회지

Superficial acral fibromyxoma is a rare, distinctive soft tissue neoplasm most often located in the periungal region of the fingers and toes. This tumor was recently recognized as a distinct clinicopathological entity and since then quite a few cases have been reported. These tumors are composed of stellate and spindle cells arranged in a loose form, with a fascicular growth pattern, and occur mostly in middle-aged adults. However in our case, the lesion developed in 9-year-old male, who had a history trauma. Although the exact pathogenesis of superficial acral fibromyxoma has not yet been clarified, it is possible that the fibroblast hyperplasia in the lesion could be triggered by trauma. We suggest this case which occurred in a 9-year-old patient, triggered by trauma, is a peculiar and interesting event.

Inflammatory Disseminated Superficial Porokeratosis / 대한피부과학회지

Inflammatory disseminated superficial porokeratosis is an unusual pruritic variant of disseminated superficial porokeratosis, and this was first described by Kanzaki in 1992 as eruptive pruritic papular porokeratosis. Since the first report, 8 cases of inflammatory disseminated superficial porokeratosis have been reported in English language dermatologic literature and only one case has been reported in the Korean dermatologic literature. The condition is clinically characterized by an acute pruritic exacerbation of disseminated superficial porokeratosis, which had been asymptomatic for several years. Usually the skin lesions show improvement after several months, leaving brownish atrophic lesions. Histopathologic examination reveals the cornoid lamella with an infiltration of eosinophils and lymphocytes in the upper dermis. Herein, we report on an 81-year-old Korean man with inflammatory disseminated superficial porokeratosis, and this was clinically and histopathologically diagnosed.

O-X Flap; Quadripolar Advancement Flap / 대한피부과학회지

Large surgical defects are often difficult to repair and extensive adjacent skin transfer may be necessary. The purse-string suture can be used to reduce the size of large defects, but a second intervention may be necessary and requires several weeks for complete healing. Therefore, reconstruction of large defects is a challenge to the dermatologist. We report a case of basal cell carcinoma on the back in which the skin defect was reconstructed by a quadripolar advancement flap. Because the large O-shaped defect resulted in an X-shaped closure, we named this flap the O-X flap.

A Case of Eruptive Vellus Hair Cyst Involving the Face, Trunk, and Extremities / 대한피부과학회지

Eruptive vellus hair cyst (EVHC) is a benign epithelial tumor. Clinically, it usually presents as grouped or scattered yellowish to reddish-brown papules. It predominantly appears on the anterior part of the chest and extremities. Facial involvement is uncommon and 4 cases with facial involvement have been reported in the Korean dermatologic literature. However, involvement of the face coexistent with involvement of the trunk and extremities has never been reported in the Korean dermatologic literature. Herein, we report on a 10-year-old girl with multiple asymptomatic papules on her face, back and upper arms. To the best of our knowledge, this is the first report of EVHC that involves not only the face, but also the trunk and extremities in the Korean dermatologic literature.

A Case of Invasive Aspergillosis with Skin Involvement in a Renal Transplant Recipient / 대한피부과학회지

Aspergillosis is the second most common opportunistic fungal infection in immunocompromised patients yet skin involvement very rarely occurs. Herein, we report on a 22-year-old female renal transplant recipient who presented with multiple subcutaneous nodules. The biopsy and the culture of her cutaneous lesions confirm the diagnosis of invasive aspergillosis with skin involvement. Invasive aspergillosis should be included in differential diagnosis of immunocompromised patient with multiple subcutaneous nodules.

A Case of Allergic Contact Dermatitis to Duoderm Extrathin(R) Dressing / 대한피부과학회지

Even though hydrocolloid dressings have been widely used for the past 15 years in the treatment of various types of wounds; allergic contact dermatitis to these dressings have been rarely reported. Duoderm(R) is representative agent of hydrocolloid dressing, and Duoderm Extrathin(R) is a new formulation of Duoderm(R) that contains pentaerythritol ester as a tacking agent, a substance used in several other adhesives. In Korean dermatologic literature, only 1 case of the allergic contact dermatitis due to Duoderm CGF(R) has been reported. However allergic contact dermatitis due to Duoderm Extrathin(R) has not been reported. We report a case of allergic contact dermatitis in a 22-year-old female during wound management using Duoderm Extrathin(R).

A Case of Allergic Contact Dermatitis Caused by a Duoderm Extrathin? Dressing / 대한피부과학회지

Allergic reaction to different fruits and vegetables has frequently been described, but an allergic reaction to mango fruit, including its sap, pericarp, stems and leaves, has rarely reported in the literature. Mango dermatitis, although not common, is the term for allergic contact dermatitis caused by mango. The Mango plant is found worldwide, and the plant shares chemical compounds that are similar to other substances of the Anacardiaceae plant. The substances uroshiol and cardol cause the allergic contact dermatitis. Any case of allergic contact dermatitis with eating mango fruit has not been reported in the Korean dermatologic literature. Here we report the first case of mango contact dermatitis in a 20-years-old female and this happened when she drank mango juice.

A Case of Solitary Neurofibroma Resembling a Hemangioma / 대한피부과학회지

Solitary neurofibroma is a benign soft tissue tumor. Clinically, it appeared protuberant to pedunculated, flesh-colored, soft papules or nodules. Although it can appear on any site of the body, finger involvement is rare. Herein, we report the case of a 57-year-old woman with a solitary neurofibroma of the right 4th finger which looked like hemangioma.

A Case of Solitary Neurofibroma Resembling a Hemangioma / 대한피부과학회지

Solitary neurofibroma is a benign soft tissue tumor. Clinically, it appeared protuberant to pedunculated, flesh-colored, soft papules or nodules. Although it can appear on any site of the body, finger involvement is rare. Herein, we report the case of a 57-year-old woman with a solitary neurofibroma of the right 4th finger which looked like hemangioma.

A Case of Bowen' s Disease Showing Transformation into Invasive Squanmous Cell Carcinoma / 대한피부과학회지

Bowens disease is a precaicerous lesion and may transform into in asive squamous cell carcinoma. We present a case of a 67 year-old male with Bowens disease on the buttock from which squamous cell carcinoma developed. He had anerythematous, scaly and crusted slaque with a nodule on the left buttock. Skin biopsy specimen taken from the plaque and nodule revealed typical histopathological findings of Bowens disease and squlamous cell carcinoma, respectieels. The patient was treated with excision and skin graft under general anesthesia.