Tubular apocrine adenoma is a well-circumscribed intradermal benign tumor with tubular structures showing apocrine differentiation. Most of those cases occur on the scalp in middle aged women. Histologically, tubular structure with apparent apocrine decapitation secretion, cystic dilatation of tubule, and connection with epidermis are the characteristic features of tubular apocrine adenoma. We presented a case of tubular apocrine adenoma that had recurred after incomplete excision. It showed apocrine decapitation secretion histologically and both eccrine and apocrine differentiation on immunohistochemical study.
Adenoma* ; Decapitation ; Dilatation ; Epidermis ; Female ; Humans ; Middle Aged ; Scalp

Ota nevus is a dermal melanocytic harmatoma derived from neural crest melanoblast and involves skin innervated by the trigeminal nerve. Although most cases are clinically apparent at birth or around puberty, acquired lesions in adults have been rarely reported. We reported a 73 year-old Korean man with Ota nevus of the face and scalp that onset in his eighth decade and accompanied multiple solar comedo of the face.
Adolescent ; Adult ; Humans ; Neural Crest ; Nevus of Ota* ; Parturition ; Puberty ; Scalp ; Skin ; Trigeminal Nerve

No abstract available.
Female ; Pregnancy ; Pregnancy, Multiple*

Mixed tumor of the skin (chondroid syringoma) is a rare benign tumor composed of epithelial elements intermingled with myxoid or cartilagenous stroma which is not separated by basement membrane. It had been believed to originate from the eccrine gland but recently, it was described to be of apocrine gland origin in case of showing apparent apocrine secretion. We report on a 63-year-old man with a tumor on the right upper eyelid showing typical microscopic features of mixed tumor of the skin. Many apocrine decapitation secretions were seen in tubular structures and follicular differentiations were also seen, which represents the common origin of folliculo-sebaceous-apocrine unit.
Adenoma, Pleomorphic ; Apocrine Glands ; Basement Membrane ; Decapitation ; Eccrine Glands ; Eyelids ; Humans ; Middle Aged ; Skin

No abstract available.
Animals ; B-Lymphocytes* ; Mice* ; Sarcoma*

STUDY DESIGN: Clinical and radiographic results of spine fracutre treated with pedicle screws and hooks were reviewed. OBJECTIVES: Evaluate the efficacy of tile pedicle screw and hook for thoracolumar bursting fracture. SUMMARY OF LITERATURE REVIEW: Despite of the mechanical advantage of the pedicle screw, the metal failure in short segment fusion has been reported. A biomechanical study showed additional laminar hook increased rotational strength. MATERIALS AND METHODS: Between 1994 and 1996, seventeen patients who had a Denis type B bursting fracture of the thoracolumbar spine were treated by posterior instrumentation with pedicle screws and laminar hooks and auterior interbody fusion after partial corpectomy. They have been followed for an average of 13.4 months. RESULTS: At last follow-up, radiographs showed successful fusion of the injured spinal segment in all patient. The subsidence of grafts which were used In anterior interbody fusion was an average of 0.76mm. There was a loss of 2.6 degrees on average in the correction of the kyphosis. No patients had screw breakage or loosening. CONCLUSIONS: We concluded that posterior fixation with screws and hooks, anterior decompression by partial corpectomy, and strut-grafting in patient who had a Denis type B bursting frafture of the thoracolumbar spine yielded good radiographic and functional results.
Decompression ; Follow-Up Studies ; Humans ; Kyphosis ; Spine* ; Transplants

Background: The normal references for acetabular parameters are important for the diagnosis of hip diseases and planning of total hip arthroplasty. There are wide interindividual differences in acetabular morphology in the normal population, and little is known about differences in acetabular morphology in the average South Korean population. The purpose of this study was to evaluate side and sex differences in acetabular morphology in the South Korean population. Methods: The acetabular parameters, including anteversion angle, abduction angle, center-edge angle, acetabular width and depth, and acetabular-head index, were measured on three-dimensional computed tomography images in 197 healthy Korean adults. Differences in acetabular parameters according to side and sex were evaluated. Results: The mean acetabular anteversion angle of men and women was 17.3° ± 5.2° and 20.1° ± 3.5°, respectively. The mean acetabular width of men and women was 61.5 ± 4.6 cm and 56.5 ± 4.0 cm, respectively. There were significant sex differences in acetabular anteversion angle (p = 0.001) and acetabular width (p = 0.036) when adjusted for age, body height, and weight. The mean acetabular width of the right side and the left side was 60.2 ± 5.2 cm and 57.8 ± 4.5 cm, respectively. There were significant side differences in acetabular width (p = 0.007) when adjusted for age, body height, weight, and sex. Conclusions Differences and reference ranges of acetabular parameters are important for the diagnosis of acetabular deformity, such as femoroacetabular impingement and acetabular dysplasia. Moreover, these differences and reference ranges are useful for preoperative planning and safe positioning of acetabular components in total hip arthroplasty.

Purpose: We investigated the effect of severe calcification of the femoropopliteal artery on intervention outcomes in patients with ischemic tissue loss. Materials and Methods: A retrospective review of the first endovascular treatment of the femoropopliteal artery for ischemic tissue loss between May 2010 and February 2018 was performed. The calcification of femoropopliteal lesions was estimated by the Compliance 360° score, and lesions with a score of 4 were defined as severe calcification lesions. Results: Overall, 135 first femoropopliteal endovascular procedures on 135 limbs from 112 patients were included in this study. Among the 135 limbs that received treatement of the femoropopliteal arteries, 74 limbs had Trans-Atlantic Inter Society Consensus (TASC) A or B lesions and 61 limbs had TASC C or D lesions. Among 61 cases of TASC C or D lesions, 21 limbs (34.4%) had severe calcification; there was no statistically significant difference in limb salvage (P=0.75), and amputationfree survival (P=0.11) based on the degree of calcification. However, the survival rate in TASC C or D lesions was significantly different between the two groups (non-severe calcification group vs severe calcification group at 1-year, 2-years, and 3-years: 88.6%, 79.7%, and 61.0% vs 70.0%, 56.0%, and 28.0%, respectively, P=0.01). In multivariate analysis of influencing factors for poor survival in TASC C or D using the Cox proportional hazards model, severe calcification (hazard ratio, 2.362; 95% confidence interval, 1.035-5.391; P=0.041) was a statistically significant risk factor. Conclusion Severe femoropopliteal artery calcification was associated with poor survival, especially in TASC C or D lesions.

No abstract available.

Rudimentary meningocele, also known as a 'variant of primary cutaneous meningioma' or 'acoelic meningeal hamartoma', is an unusual developmental anomaly in which meningothelial elements are found in the skin. A 8-month-old girl has a well-circumscribed, alopecic, atrophic patch on the midline of the occipital area since birth. Histologically, pseudovascular spaces lined with flattened or cuboidal cells were seen in the papillary and upper reticular dermis without collagen bodies. These flattened or cuboidal cells were positive for vimentin, but negative for EMA, immunohistochemically. Radiographic finding of the scalp revealed no underlying bony defect.
Collagen ; Dermis ; Female ; Humans ; Infant ; Meningocele* ; Parturition ; Scalp ; Skin ; Vimentin