Oil granuloma develops mainly after injection of oil substances such as paraffin, silicone, etc, but there have been reports of oil granuloma after topical application of lipid substance to the body. A 22-year-old woman developed oil granuloma after the application of squalene on both lower eye-lids. Histopathologic findings ahowed acanthosis and dyskeratosis of the hair follicles. Lipid suketances staining with oil-red-O stain were found mainly on the hair follicles. and partly on the epidermis. We report a case of oil grinulorna caused by squalerie that may have penetrated through the hair follicles and partly through the epidermis resulting in chronic granulous changes in the dermis.
Dermis ; Epidermis ; Eyelids* ; Female ; Granuloma* ; Hair Follicle ; Humans ; Paraffin ; Silicones ; Squalene* ; Young Adult

No abstract available.
Colon*

Ultrastructural study was taken in a 48 year old male farmer with colloid milium. Electrcn microscopically, colloid was mainly composed of protofilaments, amorphous substance and degenerating collagens surrounded by halos. Colloidal filaments were curved and branched at their ends. Fibroblasts near the colloid island contained amorphous materials and protofilaments idnitical to that of colloid materials, Thus we suggest that. colloid milium may be produced by the abnormal fibroblasts or may be derived from actiinically damaged collagen fibers.
Collagen ; Colloids* ; Fibroblasts ; Humans ; Male ; Middle Aged

We report a case of papillary eccrine adenoma occurring in a 39-year-old male who had a walnut sized, firm nodule on the right knee without subjective symptoms. Histopathologic exammination revealed a well circumscribed, non-capsulated dermal nodule consisting of multiple ducts with various sizes. These ducts were composed of double layered epithelial cells in most areas, but in some areas severe intraluminal papillation snd pseudostratification into the lumen were seen and the lumina were filled with a homogenous eosinophilic substance and partially with calcium deposition. Immunohistochemical studies with S-100 antigen and csrcinoembryonic sntigen (CEA) were also performed. Positivity for these sntigens strongly supports the hypothesis that this unusual neoplasm differentiates toward the eccrine secretory coil.
Adenoma* ; Adult ; Calcium ; Eosinophils ; Epithelial Cells ; Humans ; Juglans ; Knee ; Male

Necrobiotic xanthogranuloma(NXG) is a characteristic cutaneous manifestation associated with paraproteinemia. A case of NXG associated with an IgG (lambda) monoclonal gammopathy occurred in a 48-year-old man. Skin lesions were dome-shaped, hard palpable nodules, 2x3 cm to 4x4 cm sized, on both arms and forearms. They were arranged in a linear pattern. Also, hard palpable tumors, 1x2 cm to 2x3 cm in size, were present on the left leg and the dorsum of the left foot. They were violaceous, slightly protruded, and hard on palpation. Histologically, the lesion was characterized by inflammatory xanthogranuloma with broad hands of hyaline necrobiosis. Many foreign body type of bizarre giant cells, Touton type of giant cells and foamy histiocytes were infiltrated into the dermis and subcutaneous fat tissue. Three days after medication with ledercort and immuran, the cutaneous masses decreased in size and became soft.

Forty eight skin biopsies obtained from 24 patients were reviewed, and clinical, histological and immunohistochemical findings were analyzed. Results obtained are as follows: 1) Skin manifestation was plaque, erythroderma, scale and hyperpigmentation in mycosis fungoides, and subcutaneous nodule, mass and ulcerated patch in cutaneous lymphoma. The skin of lymphomatoid papulosis revealed hemorrhagic ulcerated and erythematous papules which healed spontaneously. 2) Histologically, mycosis fungoides showed epidermotropism in most cases. Pautrier's micro-abscesses were present in one-fourth of the cases. Malignant lymphoma was different in histology from mycosis fungoides. As compared with mycosis fungoides, it showed less frequent epidermotropism, more compact and diffuse infiltration of atypical lymphocytes, more often association with ulcer and necrosis, and more frequent mitotic figures. Lymphomatoid papulosis showed striking hemorrhage and edema of the papillary dermis. 3) Based on the results of immunohistochemical study, mycosis fungoides and lymphomatoid papulosis were considered as a T cell proliferative disorder of the skin. According to these findings, lymphoproliferative disorders of the skin occurred predominantly in the elderly and males. Clinical and histopathologic findings overlapped and were similar each other. It was difficult to make a definite diagnosis in early lesions, and a sequential follow up biopsy was required. It is concluded that strict criteria such as marked atypia and clustering of atypical cells are necessary for a histologic diagnosis of malignant lymphoproliferative disorder of the skin.
Biopsy

Reticulate acropigmentation of Kitamura, described first by Kitamura and Akam atsu in 1943, is a pigmentary disorder that may be determined by an autasomal dominant gene. Skin lesions are characterized clinically by depressed brownisL pigmented spots, in a reticulated pattern, on the extensor surface of the acral parts of the extremities. Most reported cases are confined to Japanese. We report herein a case of reticulate acropigmentation of Kitarnura in a 28- year-old woman, with a depressed brownish pigmented spots, in a reticulate pattern, on the dorsum of hands and left foot. The authors make the diagnosis of this case a reticulate acropigmentation of Kitamura for the clinical symptoms and histopathologic findings.
Asian Continental Ancestry Group ; Diagnosis ; Extremities ; Female ; Foot ; Genes, Dominant ; Hand ; Humans ; Skin

Erythema induratum and erythema nodosum are both inflammatory disorders of the panniculus. However they are often difficult to distinguish because of clinical variations and similarity of histopathologic features. We investigated the clinical and histopathologic features of 30 cases of erythema induratum and 38 cases of erythema nodosum in order to define discrimination of clinical and histopathologic features. The results show that presence of ulceration is clinically important in differentiating erythema induratum from erythema nodosum. Histopathologic findings which suggest erythema induratum include lobular panniculitis or lobuloseptal panniculitis, necrosis and necrotizing vasculitis while erythema nodosum is characterized by predominantly septal panniculitis without necrosis and necrotizing vasculitis.
Discrimination (Psychology) ; Erythema Induratum* ; Erythema Nodosum* ; Erythema* ; Necrosis ; Panniculitis ; Ulcer ; Vasculitis

An experimental study was made to investigate the fertility of unilateral cryptorchidism in rat, Twenty-six male Sprague-Dawley rats were treated to create unilateral mechanical cryptorchidism at 5 weeks of age and both testicles were examined microscopically at 13, 19 and 25 weeks of age. Testicular volume, tubular diameter and spermatogenic index were subjected to statistical analysis. No significant differences were found in testicular volumes of the contralateral scrotal testicle (P>0.05 ), whereas that of the intraabdominal testicle was greatly decreased (P <0.001). Found was considerable decrease in contralateral scrotal testicles in terms of spermatogenic, index and tubular diameter (P <0.01), in addition to significant changes of intraabdominal testicle (P<0.001). Severe histological change depicted by thickening of the basement membranes of seminiferous tubules and peritubular hyalinization were noted in the intraabdominal testicles while contralateral scrotal testicle showing a mild to moderate changes. In conclusion, one can state that spermatogenesis is decreased in both intraabdominal as well as contralateral scrotal testicles, the severity of the former being greater than the latter.
Animals ; Basement Membrane ; Cryptorchidism* ; Fertility ; Humans ; Hyalin ; Male ; Rats ; Rats, Sprague-Dawley ; Seminiferous Tubules ; Spermatogenesis ; Testis*

Ectopic ureteroceles have a broad spectrum of presentation, anatomy and pathophysiology and the management is controversial. Herein, we report our experience of the management in 7 children with 8 ectopic ureteroceles associated with complete duplicated systems. Two functioning upper renal segments were able to be salvaged with ureteropyeIostomy and common sheath ureteral reimplantation. Four small ureteroceles not associated with reflux managed successfully with upper tract correction only(3 heminephrectomy and 1 ureteropyelostomy). Three children with ectopic ureteroceles associated with reflux and/or outlet obstruction underwent successful one stage total reconstruction which included heminephrectomy, ureterectomy, ureterocelectomy and lower pole ureter reimplantation. In summary, the management of ectopic ureterocele must be individualized taking into considerations the salvageability of renal segments, presence of reflux and/or outlet obstruction.
Child* ; Humans ; Replantation ; Ureter ; Ureterocele*