The human capacity for physiologic adaptation to cold is minimal. A cold environment can be a threat to the skin, leading to a subsequent fall in core body temperature. Many physiologic, behavioral, and environmental factors predispose to the global effects of cold injuries. Physical injuries caused by cold have two forms: systemic forms such as hypothermia and localized forms such as frostbite. Reduced temperature directly damages the tissue, as in frostbite and cold immersion foot. Vasospasm of vessels perfusing the skin induces chilblain, acrocyanosis, and frostbite. The degree of damage caused by cold is related to four factors: temperature, exposure time, wind intensity (temperature sensation), and high altitude.
Adaptation, Physiological ; Altitude ; Body Temperature ; Chilblains ; Cold Injury ; Frostbite ; Humans ; Hypothermia ; Immersion Foot ; Skin ; Wind

Monogenic autoimmune diseases (AD) present as lupus-like clinical manifestations with recurrent fever or various vasculopathies. Recurrent fever with an elevation of acute phase reactants and various skin lesions are similar in monogenic AD and autoinflammatory disease. The molecular pathogenesis of adult systemic erythematosus can be understood through monogenic AD based on gene defects: complement, apoptosis, interferonopathy via nucleic acid sensing, tolerance, rasopathies, and others. Skin vasculopathy with chilblains and livedo reticularis, interstitial lung disease, and panniculitis are common occurrences in type I interferonopathy. Some syndromes have been reported to present with autoimmune inflammation and the general clinical findings, including cerebral calcification. Various clinical manifestations in monogenic AD present in accordance with the gene loss- or gain-of-function mutations involved. The monogenic AD for the early onset of more severe lupus-like symptoms or vasculopathy needs to be considered. Furthermore, clinical trials were conducted via targeted therapy for related molecular pathways, because conventional treatments were not effective in managing monogenic AD.
Acute-Phase Proteins ; Adult ; Apoptosis ; Autoimmune Diseases* ; Chilblains ; Complement System Proteins ; Fever ; Humans ; Inflammation ; Interferons ; Livedo Reticularis ; Lung Diseases, Interstitial ; Lupus Erythematosus, Systemic ; Panniculitis ; Skin

A 39-year-old Caucasian man was referred to University Hospital Salamanca from a primary care unit due to the presence of an erythematous violaceous nodule at the superior portion of his nose. Physical examination indicated that the firm, fixed erythematous violaceous nodule measured approximately 2 cm in diameter and was located inferior to a scar on the nasal bridge. Cutaneous involvement in sarcoidosis occurs in 25% of cases. A wide range of clinical presentations of cutaneous sarcoidosis is recognized. Skin lesions are classified as either non-specific, of which erythema nodosum is the most representative and specific, or as granulomatous, which includes maculopapular nodules, plaques, infiltrated scars, lupus pernio, ulcerations, warty lesions and erythroderma. Scar sarcoidosis is a type of cutaneous sarcoidosis.
Adult ; Chilblains ; Cicatrix ; Dermatitis, Exfoliative ; Erythema Nodosum ; Humans ; Nose ; Physical Examination ; Primary Health Care ; Sarcoidosis* ; Skin ; Ulcer

No abstract available.
Chilblains*

Chilblain lupus erythematosus (LE) is a rare, chronic form of cutaneous LE (CLE), which presents mostly in women as erythematous to violaceous plaques on the acral areas and face, precipitated by cold and damp climates. It may be accompanied by discoid LE (DLE) lesions or other forms of CLE. Up to 20% of patients develop systemic LE (SLE). Although two missense mutations in TREX1, encoding the 3'-5' repair exonuclease 1, were described in familial chilblain LE, the pathogenesis of sporadic chilblain LE remains unknown. To our knowledge, there are a few reports of chilblain LE in the Korean dermatologic literature. Herein, we present a rare and interesting case of sporadic chilblain LE in 71-year-old man and review the Korean literatures.
Aged ; Chilblains ; Climate ; Cold Temperature ; Exodeoxyribonucleases ; Female ; Humans ; Lupus Erythematosus, Cutaneous ; Mutation, Missense

Adolescent ; Adult ; Aged ; Chilblains ; therapy ; Female ; Ginger ; Humans ; Male ; Middle Aged ; Moxibustion ; Seasons ; Young Adult

We experienced four cases of perniosis successfully treated with bukuryoingohangekobokuto, or hangekobokuto. Swollen tongue, pulsation at the pit of the navel, and tympanitic abdominal sounds were taken as common objective findings in all four cases. In addition, decreased surface body temperature was diagnosed at the bilateral hands and feet, so as to be distal from the trunk in palpation. These four cases had both symptoms of an eminent Ki obstruction, and a disorder of body fluid metabolism. For the two cases administered bukuryoingohangekobokuto especially, a state of strong Ki deficiency was diagnosed. Efficacy in each case was prompt. Thus, we consider bukuryoingohangekobokuto and hangekobokuto to be prescriptions worth trying for perniosis that does not responding to the usual Western medicines, or Kampo treatment.
Obstruction ; Application, NOS ; Chilblains ; Medicine, Kampo ; Western Herbs and Botanicals

Pernio, or chilblains, are a localized inflammatory lesion of the skin resulting from an abnormal response to cold. The condition is characterized by cutaneous lesions located on the distal parts, such as the fingers, toes, nose and ears. Pernio develops among susceptible individuals who are exposed to non-freezing condition and most commonly occurs among young women and children. However, reports on childhood pernio are rarely found. Several conditions have been described as predisposing factors to pernio, including excessive cold exposure, low-grade vasculitis, the presence of cryoproteins, anorexia nervosa, systemic lupus erythematous and antiphospholipid antibodies. It is important, therefore, when evaluating a patient with chronic pernio who is resistant to conservative management, to exclude an underlying condition and also to determine whether additional testing is necessary. Herein, we present an uncommon case of a 5-year-old female patient with chronic pernio that may be associated with the presence of cold agglutinin. She received topical steroids prior to evaluation but no improvement was seen. Howere, treatment with calcium channel blocker, nifedipine, was of benefit to our patient.
Anorexia Nervosa ; Antibodies, Antiphospholipid ; Calcium Channels ; Causality ; Chilblains ; Child ; Child, Preschool ; Cryoglobulins ; Ear ; Female ; Fingers ; Humans ; Nifedipine* ; Nose ; Skin ; Steroids ; Toes ; Vasculitis

BACKGROUND: Chilblain or pernio is a cold-induced, inflammatory skin problem which occurs usually on acral areas bilaterally. Because chilblain commonly develops in cold, damp climates, many soldiers may experience occupational chilblain during military service in Korea. OBJECTIVE: The purpose of this study is to analyze the clinical characteristics of chilblain in Korean soldiers. METHODS: We reviewed the clinical findings in 199 patients with chilblain who visited the department of dermatology, Armed Forces Capital Hospital during the 5-year period from 2002 to 2007. We investigated the epidemiology, aggravation factors, duration of the disease, clinical manifestations and treatment. RESULTS: The results were as follows; The average age was 21.51+/-1.86 years old. The chilblain usually developed during winter and the duration of symptoms ranged from 1 day to 4 years. All patients developed skin lesions on acral areas. Erythematous skin lesions were observed in 133 patients and purpuric lesions were seen in 56 patients. The lesions were symmetrical in 171 patients 43 patients had history of recurrence. Treatment includes nifedipine and pentoxyfilline. The supportive treatment includes rest and keeping warm, topical corticosteroids or antibiotics and oral antihistamine, analgesics, or antibiotics. CONCLUSION: This investigation is expected to help understand and obtain more information on chilblain.
Adrenal Cortex Hormones ; Analgesics ; Anti-Bacterial Agents ; Arm ; Chilblains* ; Climate ; Dermatology ; Epidemiology ; Humans ; Korea ; Military Personnel* ; Nifedipine ; Recurrence ; Skin

OBJECTIVE: The typical clinical feature of chronic cutaneous lupus erythematosus (CCLE) is 'discoid erythema'; however, several different clinical variants exist such as hypertrophic LE, LE profundus, chilblain LE, tumid LE and so on. The heterogeneity-spectrum of the lesional morphology of the cutaneous lesions and the predilection sites of the lesions of twenty Korean patients with CCLE were examined and tried to compare to those of CCLE patients of Caucasian origin. METHODS: Clinical examinations of twenty patients with CCLE were carried out by dermatologists to define the morphologic characteristics of cutaneous lesions and the anatomic predilection sites of the lesions. RESULTS: The most common cutaneous lesion-morphology noted in Korean patients with CCLE was classic discoid erythema. Three cases had concurrent cutaneous lesions of other clinical variants of CCLE. The predilection sites of all lesions were the face (cheeks) and head (frontal area). These clinical findings observed among this group of patients are similar to those features seen in people of Caucasian origin. CONCLUSION: The most frequent clinical feature of CCLE was discoid erythema and the predilections sites of the lesions found were the face and the scalp; indicating that the morphological heterogeneity-spectrum of cutaneous lesions and the predilection sites observed in Korean patients of CCLE seem to have no remarkable differences when compared with Caucasian cases with the same diagnoses.
Chilblains ; Diagnosis ; Erythema ; Head ; Humans ; Lupus Erythematosus, Cutaneous* ; Scalp