Isolated collagenoma usually occurs on the plantar area and is frequently associated with Proteus syndrome. A few reports have described isolated collagenoma on extra-plantar areas such as palm, scalp, face, thigh and finger. Herein, we report a case of isolated collagenoma on the periungual area, which was confused with digital mucous cyst. A 26-year-old man visited our clinic with an asymptomatic, 0.8x0.7 cm-sized, firm, skin-colored nodule on the periungual area of the left fourth finger. The distal nail of the nodule showed a longitudinal groove. Histopathologic findings from periungual nodule showed thickened collagen bundles packing reticular dermis.
Adult ; Collagen ; Dermis ; Fingers ; Humans ; Nails ; Proteus Syndrome ; Scalp ; Thigh

In 2005, Kreidstein first proposed the term "Cutis pleonasmus," a Greek term meaning "redundancy," which refers to the excessive skin that remains after massive weight loss. Cutis pleonasmus is clearly distinguishable from other diseases showing increased laxity of the skin, such as pseudoxanthoma elasticum, congenital and acquired generalized cutis laxa. Although individuals who are severely overweight are few and bariatric surgeries are less common in Korea than in the West, the number of these patients is increasing due to changes to Western life styles. We report a case for a 24-year-old man who presented with generalized lax and loose skin after massive weight loss. He was diagnosed with cutis pleonasmus based on the history of great weight loss, characteristic clinical features and normal histological findings. To the best of our knowledge, this is the first report of cutis pleonasmus in Korea.
Bariatric Surgery ; Cutis Laxa ; Humans ; Korea ; Life Style ; Overweight ; Pseudoxanthoma Elasticum ; Skin ; Weight Loss ; Young Adult

No abstract available.
Eosinophils* ; Mouth Mucosa* ; Ulcer*

No abstract available.
Granuloma* ; Syphilis, Cutaneous*

No abstract available.
Eosinophilia ; Eosinophils ; Folliculitis ; Skin Diseases, Vesiculobullous ; Tacrolimus

Disseminated and recurrent infundibulo-folliculitis is an infrequent entity of unknown etiology that was first described in 1968, by Hitch and Lund. Most patient reports have been on young black male adults. It is rarely reported in Asian, and there has been only 1 case reported in the Korean medical literature in the year 1984. The syndrome has been characterized as tiny uniform, skin-colored papules similar to 'goose-bumps' of skin. These papules predominantly involve the trunk and proximal extremities, and are usually accompanied by mild pruritus. In this report, we presented a 33-year-old man with a 10-year history of generalized skin-colored, follicular papules on the chest and back with intermittent pruritus. The clinical initial differential diagnosis included keratosis pilaris, lichen spinulosus, lichen nitidus, folliculitis, and disseminated and recurrent infundibulo-folliculitis. A histopathologic examination showed predominant mononuclear cell infiltration around the infundibular portion of hair follicles, follicular spongiosis and lack of hyperkeratosis. Herein, we reported a rare case of disseminated and recurrent infundibulo-folliculitis with typical clinical and histopathological findings in a 33-year-old Korean man.
Abnormalities, Multiple ; Adult ; Asian Continental Ancestry Group ; Darier Disease ; Diagnosis, Differential ; Extremities ; Eyebrows ; Folliculitis ; Hair Follicle ; Humans ; Keratosis ; Lichen Nitidus ; Lichens ; Male ; Pruritus ; Skin ; Thorax

We report a case of 61-yr-old man with stable psoriasis who progressively developed generalized pustular eruption, erythroderma, fever, and hepatic dysfunction following oral terbinafine. Skin biopsy was compatible with pustular psoriasis. After discontinuation of terbinafine and initiating topical corticosteroid and calcipotriol combination with narrow band ultraviolet B therapy, patient's condition slowly improved until complete remission was reached 2 weeks later. The diagnosis of generalized pustular psoriasis (GPP) induced by oral terbinafine was made. To our knowledge, this is the first report of GPP accompanied by hepatic dysfunction associated with oral terbinafine therapy.
Suppuration/chemically induced ; Psoriasis/*chemically induced ; Naphthalenes/*adverse effects ; Middle Aged ; Male ; Liver Diseases/*chemically induced ; Humans ; Antifungal Agents/*adverse effects ; Administration, Oral

Onychatrophy is the processes in which the nail has initially formed satisfactorily and then shows total or partial regression. The causes of onychatrophy with pterygium include lichen planus, acrosclerosis, Stevens-Johnson syndrome, and cicatrical pemphigoid, and those without pterygium include severe paronychia, Stevens-Johnson syndrome, epidermolysis bullosa, and drugs. Bleomycin is an antitumor, antibacterial, and antiviral agent used in many dermatologic diseases such as warts, vascular anomalies, hemangioma, and cutaneous malignancies. Cutaneous adverse effects of bleomycin strongly depend on the route of administration and dosage. Bleomycin intralesional injection for periungual warts could result in permanent Raynaud phenomenon, nail dystrophy, and nail loss. We report five cases of onychatrophy following bleomycin intralesional injections for periungual warts. We remind that if bleomycin intralesional injection near the nail matrix is inevitable in recalcitrant periungual warts, the performer must manipulate precisely to avoid adverse effects.
Bleomycin ; Epidermolysis Bullosa ; Hemangioma ; Injections, Intralesional ; Lichen Planus ; Nails ; Paronychia ; Pemphigoid, Bullous ; Pterygium ; Raynaud Disease ; Stevens-Johnson Syndrome ; Warts

A 56-year-old man with chronic hepatitis C was treated with pegylated interferon alfa-2a in combination with ribavirin. However, psoriatic lesions appeared and worsened dramatically during therapy. Because of the extensive skin eruptions, he stopped therapy for chronic hepatitis C and subsequently started narrow-band ultraviolet B phototherapy and topical calcipotriol/betamethasone dipropionate ointment. After this, the psoriasis improved in a slow but comprehensive manner. Our case suggests that physicians should keep in mind the possibility of psoriasis as a side effect of interferon treatment for chronic hepatitis C.
Hepatitis C ; Hepatitis C, Chronic* ; Hepatitis, Chronic* ; Humans ; Interferon-alpha ; Interferons* ; Middle Aged ; Phototherapy ; Polyethylene Glycols ; Psoriasis* ; Recombinant Proteins ; Ribavirin* ; Skin

Cement is increasingly used in the construction industry. Cement handling has been found to be responsible for many cases of occupational dermatitis, but cement burns have rarely been reported. Alkalinity of wet cement, abrasion by sand particulates, and prolonged contact, due to wet clothes, are relevant factors for cement burns. Although cement burns can result in full thickness burn and severe sequelae, the prevalence and severity are underestimated, due to the unawareness of patients and physicians. Herein, we report two cases of cement burns in construction workers, who had contacted with wet cement on lower extremities from their occupational exposures.
Burns ; Construction Industry ; Dermatitis, Occupational ; Handling (Psychology) ; Humans ; Lower Extremity ; Occupational Exposure ; Prevalence ; Silicon Dioxide