Postoperative (pressure) alopecia is the temporary or permanent loss of hair that occurs following a prolonged immobilization during and/or after general anesthesia and intubation. The cause is considered to be pressure-induced ischemia. Although not an uncommon condition, it is frequently overlooked as a minor complication relative to a causative surgical procedure. We report a 22-year-old woman who was presented with focal hair loss of two weeks' duration after a 9-hour operation for a left brachial plexus injury. Histopathologic examination showed that nearly all terminal follicles were in catagen phase with marked atrophic change of subcutaneous fat.
Alopecia* ; Anesthesia, General ; Brachial Plexus ; Female ; Hair ; Humans ; Immobilization ; Intubation ; Ischemia ; Subcutaneous Fat ; Young Adult

No abstract available.
Histiocytosis*

No abstract available.
Aneurysm* ; Arteries* ; Cardiopulmonary Bypass* ; Circulatory Arrest, Deep Hypothermia Induced*

Childhood granulomatous perioral dermatitis(CGPD) is a distinctive granulomatous form of perioral dermatitis of unknown cause with a benign and self-limited course and no associated systemic manif estations. It is characterized by an asymptomatic monomorphous papular eruption, with or without scale or pustules, around the mouth, nose, and eyes primarily in prepubertal children. This condition may resemble sarcoidosis both clinically and histologically. A 3-year-old boy first presented with a month-history of mildly pruritic rash around the mouth. When he returned for follow-up after an eight-week period of topical corticosteroid therapy, multiple new follicular papules and pustules developed. Histopathologic examination revealed that a granulomatous lesion consisted of nodular infiltration of multiple histiocytes admixed with lymphocytes in the dermis. The condition resolved in about three weeks after using an unknown topical agent prescribed by a private practicing dermatologist.
Child ; Child, Preschool ; Dermatitis, Perioral* ; Dermis ; Exanthema ; Follow-Up Studies ; Histiocytes ; Humans ; Lymphocytes ; Male ; Mouth ; Nose ; Sarcoidosis

BACKGROUND: Rosacea is a chronic skin disease which primarily affects the face. There have been many basic and clinical studies on rosacea in the West, but little in Korea. OBJECTIVE: This study was to investigate clinical features of rosacea in Korea and to compare them with those in the West. METHODS: During a 20-month period, 67 patients diagnosed as having rosacea were examined for their clinical presentations by means of personal interview. RESULTS: Erythema and telangiectasia were found in almost all of the 67 patients. Comparing with the results in the West, flushing and telangiectasia were more common whereas papules, pustules, and rhinophyma were less common with no case of ocular complaints or migraine. CONCLUSION: Because early detection and treatment is necessary to prevent the progression of rosacea, it is important to realize that rosacea is not uncommon in Korea and to recognize its somewhat different clinical manifestations from those in the West.
Erythema ; Flushing ; Humans ; Korea ; Migraine Disorders ; Rhinophyma ; Rosacea* ; Skin Diseases ; Telangiectasis

Cephalic brain-like heterotopias, so called nasal gliomas, are masses of mature glial tissue resulted from an error in embryonic development and are frequently located on the bridge of the nose. They often give rise to the clinical suspicion of dermoid cyst, hemangioma, or lipoma. Histologically, they are composed of fibrillary neuroglial cells, mainly large astrocytes, which are interlaced with a variable amount of fibrous and vascular connective tissue. Mitoses are rare. The possible tumor stalk is usually fibrous without glial elements. Due to the occasional presence of connection to the intracranial space it deserves a careful preoperative evaluation including imaging studies. We report a case of cephalic brain-like heterotopia. A sixteen day-old infant presented a mass which was suspended to the forehead by a fibrous stalk. Th excised lesion showed characteristic pathologic features of cephalic brain-like heterotopia.
Astrocytes ; Connective Tissue ; Dermoid Cyst ; Embryonic Development ; Female ; Forehead ; Glioma ; Hemangioma ; Humans ; Infant ; Lipoma ; Mitosis ; Neuroglia ; Nose ; Pregnancy

Hair shaft breakage is a common condition frequently caused by physical or chemical trauma as well as intrinsic diseases. The hair can be modified both externally and internally through the cosmetically-used chemicals. Use of these products causes a decrease in the hair shaft's elastic properties, allowing increased hair breakage. Herein we report four cases of hair shaft breakage presented with features of alopecia caused by hair care cosmetics. Microscopic examination revealed abnormal hair shaft endings such as weathering, trichoptilosis and trichoclasis. Through these cases, we remind the fact that the dermatologist can better aid the patient with hair difficulties if he or she has an understanding of the formulation and the effects of products designed to modify the hair.
Alopecia ; Hair* ; Humans ; Weather

BACKGROUND: Conventional vertical sections of scalp biopsy specimens are often inadequate for the diagnosis of alopecia. Alternatively, a better approach can often be provided with the use of transverse sections continues, which is readily available and continues to grow in popularity. OBJECTIVE: The purpose of this study was to compare the histopathologic findings of transverse and vertical sections of scalp biopsy specimens in various types of alopecia. METHODS:A total of 27 scalp biopsy specimens obtained during the past 16 months for the evaluation of alopecia was processed for either transverse or vertical section, or for both. With these sections a quantitative morphologic study was done by counting a variety of follicular structures, and any specific histopathologic changes were recorded. RESULTS: Diagnostic features that were better seen in vertical sections included quantitative morphologic changes of a variety of follicular structures such as total number of follicles, catagen and telogen hairs, vellus hairs and follicular stele, as were anagen-telogen ratios and terminal-vellus ratios. Other histopathologic findings that were better demonstrated in transverse sections included peribulbar inflammatory infiltrate for alopecia areata, miniaturization for androgenetic alopecia, trichomalacia and pigment cast for trichotillomania, and fat atrophy for pressure alopecia. In some cases, especially for scarring alopecia, vertical sections also allowed for useful adjunctive diagnostic information such as follicular destruction, dermal fibrosis and sclerosis, and interface change. CONCLUSION: Transverse sections of scalp biopsy specimens provided many useful information in histopathologic diagnosis of alopecia. But, in some cases of scarring alopecia, vertical sections provided more diagnostic findings. To overcome the diagnostic limitation of transverse sections, therefore, observing both transverse and vertical sections at a time could be an alternative way of enhancing diagnostic yield of alopecia.
Alopecia Areata ; Alopecia* ; Atrophy ; Biopsy ; Cicatrix ; Diagnosis ; Fibrosis ; Hair ; Miniaturization ; Scalp ; Sclerosis ; Trichotillomania

BACKGROUND: Conventional vertical sections of scalp biopsy specimens are often inadequate for the diagnosis of alopecia. Alternatively, a better approach can often be provided with the use of transverse sections continues, which is readily available and continues to grow in popularity. OBJECTIVE: The purpose of this study was to compare the histopathologic findings of transverse and vertical sections of scalp biopsy specimens in various types of alopecia. METHODS:A total of 27 scalp biopsy specimens obtained during the past 16 months for the evaluation of alopecia was processed for either transverse or vertical section, or for both. With these sections a quantitative morphologic study was done by counting a variety of follicular structures, and any specific histopathologic changes were recorded. RESULTS: Diagnostic features that were better seen in vertical sections included quantitative morphologic changes of a variety of follicular structures such as total number of follicles, catagen and telogen hairs, vellus hairs and follicular stele, as were anagen-telogen ratios and terminal-vellus ratios. Other histopathologic findings that were better demonstrated in transverse sections included peribulbar inflammatory infiltrate for alopecia areata, miniaturization for androgenetic alopecia, trichomalacia and pigment cast for trichotillomania, and fat atrophy for pressure alopecia. In some cases, especially for scarring alopecia, vertical sections also allowed for useful adjunctive diagnostic information such as follicular destruction, dermal fibrosis and sclerosis, and interface change. CONCLUSION: Transverse sections of scalp biopsy specimens provided many useful information in histopathologic diagnosis of alopecia. But, in some cases of scarring alopecia, vertical sections provided more diagnostic findings. To overcome the diagnostic limitation of transverse sections, therefore, observing both transverse and vertical sections at a time could be an alternative way of enhancing diagnostic yield of alopecia.
Alopecia Areata ; Alopecia* ; Atrophy ; Biopsy ; Cicatrix ; Diagnosis ; Fibrosis ; Hair ; Miniaturization ; Scalp ; Sclerosis ; Trichotillomania

Blunt chest trauma can cause various types of cardiac injuries such as myocardial contusion,cardiac ruptrue, valvular or papillary muscle injuries, and pericardial or coronary artery injuries. Complete rupture of both papillary muscles accompanied by left ventricular(LV) rupture following blunt chest trauma to our knowledge has not been previously reported. A 40-year-old female was referred because of severe dyspnea and anterior chest pain which occured immedicately after blunt chest trauma. Echocardiography demonstrated a moderate pericardial effusion as well as rupture of both papillary muscle with severe mitral regurgitation. Hemopericardium and a complets tear of the anterolateral papillary muscle at the mid portion were observed. The posteromedial papillary muscle was totally transected at the attachment site of LV wall and accompanied by external rupture of left ventricle at that site. Mitral valve replacement and primary repair of LV ruptrue was performed successfully. In the case we report, complete rupture of both papillary muscles developed after blunt chest trauma and LV rupture occurred as the papillary muscle was torn from the LV wall.
Adult ; Chest Pain ; Coronary Vessels ; Dyspnea ; Echocardiography ; Female ; Heart Ventricles ; Humans ; Mitral Valve ; Mitral Valve Insufficiency ; Papillary Muscles* ; Pericardial Effusion ; Rupture* ; Thorax*