RESUMO
BACKGROUND: Transcondylar fractures have been reported to rarely occur in the distal humerus, and stable fixation is difficult because of the unique fracture pattern. However, few studies have reported the risk factors for nonunion after open reduction and internal fixation (ORIF). This study aimed to evaluate the demographic and surgical risk factors for nonunion in patients who had undergone ORIF for transcondylar fractures. METHODS: We retrospectively reviewed 68 patients who underwent ORIF for transcondylar fractures. Preoperative demographic factors, including diabetes mellitus (DM) and smoking, and operative factors, including fixation methods (eg, dual plate/single plate/tension band wiring [TBW]) were assessed as risk factors for nonunion. RESULTS: Nonunion occurred in 8 out of 68 patients (11.8%). Univariate analysis revealed that among the demographic factors, DM (4/8 [50%] vs. 8/60 [13.3%], P = .028) and smoking (3/8 [37.5%] vs. 4/60 [6.7%], P = .031) were significantly different between nonunion and union patients. Regarding operative factors, the fixation method (dual plate/single plate/TBW; 2 [25.0%]/2 [25.0%]/4 [50%] vs. 29 [48.3%]/25 [41.7%]/6 [10.0%], P = .033) showed significant differences between nonunion and union patients. Multivariate regression analysis showed that DM (odds ratio [OR], 10.560; 95% confidence interval [CI], 1.308-85.247; P = .027), smoking (OR 22.371; 95% CI, 2.111-237.081; P = .010), and TBW (OR 15.390; 95% CI, 1.348-175.666; P = .028) were independent risk factors for nonunion. CONCLUSIONS: Nonunion occurred in approximately 12% of the patients who underwent ORIF in the transcondylar region of the distal humerus. The risk of nonunion was higher in patients with DM than those who smoked. In addition, among the fixation methods, the TBW technique was a significant risk factor for nonunion.
Assuntos
Diabetes Mellitus , Fraturas do Úmero , Humanos , Estudos Retrospectivos , Fixação Interna de Fraturas/efeitos adversos , Fixação Interna de Fraturas/métodos , Úmero , Redução Aberta , Fraturas do Úmero/cirurgia , Fatores de Risco , Resultado do Tratamento , Placas ÓsseasRESUMO
OBJECTIVE: This study aimed to provide a method for determining the apical vertebra for pedicle subtraction osteotomy (PSO) in corrective surgery for patients with ankylosing spondylitis (AS) with thoracolumbar kyphosis (TLK). METHODS: The medical records of AS patients with TLK who underwent PSO between May 2009 and August 2022 were retrospectively reviewed, and 235 patients were included in the study. Using the proposed method, choosing the vertebra based on Kim's apex (KA), which is defined as the farthest vertebra from a line drawn from the center of the T10 vertebral body to the midpoint of the S1 upper endplate, the authors analyzed 229 patients with apices at T12, L1, or L2 (excluding L3 because of the small sample size, n = 6). They divided all patients into two groups. Group A (n = 144) underwent PSO at the KA vertebra, while group B (n = 85) underwent PSO at a different level. Demographic and radiological data, including sagittal spinopelvic parameters of the entire spine, were collected. An additional analysis was performed on patients with the same KA vertebra. RESULTS: The vertebra distributions of patients based on KA were T12 (28 [12.2%]), L1 (119 [52.0%]), and L2 (82 [35.8%]). The corrections of sagittal vertical axis (SVA; 101.0 ± 48.5 mm vs 82.0 ± 53.8 mm, p = 0.010), global kyphosis (GK; 31.6° ± 10.0° vs 26.4° ± 10.5°, p = 0.005), and TLK (29.4° ± 10.2° vs 24.2° ± 12.9°, p = 0.012) in group A were significantly greater than those in group B, and there was no difference in the corrections of thoracic kyphosis (TK), lumbar lordosis, and pelvic incidence between the two groups. On further analysis, group A showed greater correction in TK (26.2° ± 13.7° vs 0.1° ± 8.1°, p = 0.013) for patients with T12 as the KA; greater improvements in SVA (101.5 ± 44.2 mm vs 73.4 ± 48.7 mm, p = 0.020), GK (30.6° ± 11.0° vs 25.0° ± 10.4°, p = 0.046), and TLK (32.6° ± 7.8° vs 26.7° ± 9.9°, p = 0.012) for those with L1 as the KA; and significant correction in TLK (30.0° ± 6.3° vs 4.3° ± 19.5°, p = 0.008) for patients with L2 as the KA, compared with group B. CONCLUSIONS: PSO at the apical vertebra provides a greater degree of correction of sagittal imbalance. The proposed method, selecting the vertebra based on KA, is easily reproducible for determining the apex level in AS patients with TLK.
Assuntos
Cifose , Vértebras Lombares , Osteotomia , Espondilite Anquilosante , Vértebras Torácicas , Humanos , Espondilite Anquilosante/cirurgia , Espondilite Anquilosante/complicações , Espondilite Anquilosante/diagnóstico por imagem , Cifose/cirurgia , Cifose/diagnóstico por imagem , Osteotomia/métodos , Masculino , Vértebras Torácicas/cirurgia , Vértebras Torácicas/diagnóstico por imagem , Feminino , Vértebras Lombares/cirurgia , Vértebras Lombares/diagnóstico por imagem , Adulto , Estudos Retrospectivos , Pessoa de Meia-Idade , Resultado do Tratamento , Fusão Vertebral/métodosRESUMO
Alveolar soft part sarcoma (ASPS) is a rare malignant soft-tissue neoplasm of unknown histogenesis. The two main sites of occurrence are the lower extremities in adults and the head and neck in children. We report the first case of pleural ASPS occurring in a 58-yr-old man who presented with progressive dyspnea. A computed tomographic scan of the thorax revealed a large enhancing pleural mass with pleural effusion in the left hemithorax. Wide excision of the pleural mass was performed. Histologically, the tumor consisted of organoid nests of large polygonal cells, the cytoplasm of which had eosinophilic and D-PAS positive granules. Immunohistochemical staining showed that the tumor cell nuclei were positive for transcription factor 3 (TFE3). The pleural ASPS with multiple bone metastases recurred 1 yr after surgery and the patient died of acute pulmonary embolism 1.5 yr after diagnosis.
Assuntos
Sarcoma Alveolar de Partes Moles/diagnóstico , Neoplasias de Tecidos Moles/diagnóstico , Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/secundário , Dispneia/etiologia , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Imagem Multimodal , Pleura/fisiopatologia , Tomografia por Emissão de Pósitrons , Embolia Pulmonar/diagnóstico , Sarcoma Alveolar de Partes Moles/diagnóstico por imagem , Sarcoma Alveolar de Partes Moles/patologia , Neoplasias de Tecidos Moles/diagnóstico por imagem , Neoplasias de Tecidos Moles/patologia , Tomografia Computadorizada por Raios X , Fator 3 de Transcrição/metabolismoRESUMO
A case of tick bite was found in the inguinal region of a 74-year-old Korean woman. She was attacked by the tick while working in her vegetable garden in the vicinity of mountain located in Suncheon City, the southern coastal area of the Korean Peninsula. On admission she complained of mild discomfort and itching around the bite area. The causative tick was 23 mm long and had slender pedipalps. The scutum was quite ornate and had eyes at the edge. The genital aperture was located anterior to the level of the coxa II. The spiracular plate was comma-shaped and the anus was surrounded posteriorly by the anal groove. The coxa I had subequal 2 spurs; the external one slightly larger. The spur of coxa IV was slightly longer than those of coxae II and III. The tarsus IV had 2 distinct subapical ventral spurs. It was identified as the fully engorged adult female of Amblyomma testudinarium. This is the first human case of Amblyomma bite in Korea.
Assuntos
Abdome/patologia , Mordeduras e Picadas de Insetos/patologia , Ixodidae/classificação , Idoso , Animais , Povo Asiático , Feminino , Humanos , Ixodidae/anatomia & histologia , República da CoreiaRESUMO
Autopsy is regarded as the gold standard in death investigation. Moreover, the statistical data from autopsies provides basic statistics for various aspects of society. However, the autopsy rate is low in the Republic of Korea. For a stable forensic autopsy, the Police Agency, the National Forensic Service, and the Department of Forensic Medicine, Chonnam National University concluded an agreement regarding forensic autopsies in the Honam area (Gwangju and Jeollanam-do areas) in 2007. This study aimed to review forensic autopsies performed over the past 10 years according to the trilateral agreement in the Gwangju and Jeollanam-do areas. A total of 3,899 cases were categorized based on the specific region; the manner and cause of death were investigated, and autopsy rates were calculated. The analysis of the manner of death revealed that 2,125 cases (54.5%) were unnatural deaths, 1,347 cases (34.5%) were natural deaths, and 427 cases (11.0%) were from an unknown cause of death. The number of autopsies was relatively stable until 2013 but increased from 2014. Since then, there was a fluctuation in the annual autopsy rates in each region. A negative correlation was noted between the distances from the region requesting autopsies to the institution performing autopsies and the autopsy rates. The authors believe that this study could be used as foundational data to guide the development of a postmortem investigation system and a reference for improving social security and public health.
RESUMO
BACKGROUND/AIMS: Telomeres are simple repeat elements located at each chromosome end of eukaryotic cells. The main function of telomeres is to cap the chromosome end and protect it from enzymatic attack. Telomerase that facilitates the synthesis of telomere has been detected in not only cancer but also precancerous lesion. In this study, we compared the telomerase expression between low grade and high grade colorectal tubular adenoma. METHODS: Among tissues from forty eight patients with colorectal tubular adenoma (23 low grade and 25 high grade colorectal dysplasia), telomerase expressions were evaluated by immunohistochemical staining. RESULTS: We classified 48 patients into two groups by the extent of nuclei staining pattern. High telomerase expression was a group which showed staining nucleus pattern above 50% in tubular adenoma. Low telomerase expression was a group which showed staining pattern nucleus below 50%. Twelve in 25 high grade colorectal dysplasia showed high telomerase expression (48%). Only one in 23 low grade colorectal dysplasia showed high telomerase expression (4%). Telomerase expression was much higher in the tissues from the patients with high grade than in those with low grade colorectal dysplasia (p<0.05). CONCLUSIONS: Activation of telomerase may be related to the malignant potential in colorectal epithelial cells. Further studies are needed to define the role of telomerase in colorectal tumorigenesis.
Assuntos
Adenocarcinoma/enzimologia , Neoplasias Colorretais/enzimologia , Telomerase/metabolismo , Adenocarcinoma/patologia , Adulto , Idoso , Neoplasias Colorretais/patologia , Feminino , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Retrospectivos , Telomerase/imunologiaRESUMO
We report the findings for 2 patients with a fluid-fluid level seen on endobronchial ultrasound (EBUS) images of bronchogenic cysts. The EBUS images demonstrated a well-circumscribed cyst with a fluid-fluid level showing an anechoic upper part and a relatively hyperechoic lower part. A fluid-fluid level on EBUS imaging of a bronchogenic cyst, which can help confirm the cystic nature of the lesion, has not been previously reported. EBUS-based confirmation of these cysts using fluid-fluid levels may help avoid unnecessary aspiration of the lesions.
Assuntos
Cisto Broncogênico/diagnóstico por imagem , Cisto Broncogênico/cirurgia , Cisto Mediastínico/diagnóstico por imagem , Cisto Mediastínico/cirurgia , Adulto , Idoso , Feminino , Idoso Fragilizado , Humanos , Cirurgia Torácica Vídeoassistida , Resultado do Tratamento , UltrassonografiaRESUMO
BACKGROUND/AIMS: To evaluate a new monoclonal antibody for Helicobacter pylori urease in gastric tissue. METHODS: A total of 107 volunteers were enrolled. All subjects underwent a (13)C-urea breath test and esophagogastroduodenoscopy. Gastric aspirates were analyzed for pH and ammonia. Six biopsy specimens in the gastric antrum and body were obtained for a rapid urease test and histology. The new monoclonal antibody-based H. pylori urease test (HPU) was performed to rapidly and qualitatively detect urease in two biopsy specimens. RESULTS: H. pylori infection was diagnosed in 73 subjects. The sensitivity and specificity of the HPU was 89% and 74%, respectively. The subjects were divided into two groups: one with true-positive and true-negative HPU results (n = 90) and the other with false-positive and false-negative HPU results (n = 17). Across all subjects, ammonia levels were 900.5 ± 646.7 and 604.3 ± 594.3 µmol/L (p > 0.05), and pH was 3.37 ± 1.64 and 2.82 ± 1.51 (p > 0.05). Sensitivity was higher in the presence of atrophic gastritis or intestinal metaplasia. CONCLUSIONS: HPU detected H. pylori in approximately 10 min. Gastric aspirate ammonia and pH levels did not affect the test results. Sensitivity was good in the presence of atrophic gastritis or intestinal metaplasia.
Assuntos
Anticorpos Monoclonais/imunologia , Proteínas de Bactérias/análise , Gastrite Atrófica/diagnóstico , Infecções por Helicobacter/diagnóstico , Helicobacter pylori/enzimologia , Testes Imunológicos , Antro Pilórico/microbiologia , Urease/análise , Adulto , Proteínas de Bactérias/imunologia , Biomarcadores/análise , Biópsia , Reações Falso-Negativas , Reações Falso-Positivas , Feminino , Gastrite Atrófica/microbiologia , Infecções por Helicobacter/microbiologia , Helicobacter pylori/imunologia , Humanos , Masculino , Metaplasia , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Antro Pilórico/patologia , Reprodutibilidade dos Testes , Fatores de Tempo , Urease/imunologia , Fluxo de TrabalhoRESUMO
The major component of car washer fluid is a methanol. Intracranial hemorrhage is a rare but lethal complication in methanol poisoning. We report a case of massive bilateral basal ganglia hematoma in a 32-year-old man with methanol poisoning. He drank car washer solution twice time (about 500 ml), and was admitted to a territorial hospital 10 hours post-ingestion for depressed mental status, lower blood pressure, and high anion gap metabolic acidosis. Computed tomographic (CT) scan showed lesions in both putamen and cerebral deep white matter. Twenty-one days after methanol exposure, he suddenly developed cardiorespiratory arrest. In autopsy, external examination revealed moderate cerebral edema, but no evidence of herniation. Coronal sections of the brain showed softening and about 34 g hematoma in the bilateral putamen and 3rd ventricles. The toxic effect of methanol on the visual system has been noted in the absence of neurologic manifestations; however, there have also been a report of concomitant brain in Korea.
Assuntos
Edema Encefálico/patologia , Hematoma/patologia , Hemorragias Intracranianas/patologia , Metanol/efeitos adversos , Adulto , Autopsia , Evolução Fatal , Humanos , Hemorragias Intracranianas/induzido quimicamente , Masculino , Tomografia Computadorizada por Raios XRESUMO
Forensic research using microRNA has been used so far only for the identification of body fluids, but its use in understanding biological processes in post-mortem pathology has not been studied before. Therefore, we performed experiments in mice to compare between freshwater and saltwater drowning models, and miRNA expression was analyzed in the brain through a forward bioinformatics screening approach. In this study, we identified eight specific microRNAs whose expression increased in freshwater and decreased in saltwater. Among them, miR-706 - targeting HCN1 - was identified as a potent biomarker for the drowning pattern identification. A higher expression of miR-706 was detected in the freshwater drowning compared to the control and saltwater drowning group (p<0.05, and p<0.01, respectively). HCN1 mRNA expression, a suggested candidate target for miR-706, was lower in the freshwater (p<0.01) than in the saltwater drowning group, and showed statistical difference between freshwater and saltwater drowning (p<0.01). miR-706 was specifically expressed in the hippocampal neurons as detected by in situ hybridization. Our data suggest that a specific microRNA may provide clues to understanding some crime scene investigations and pathobiological processes in the dead body.
Assuntos
Afogamento/diagnóstico , Marcadores Genéticos , MicroRNAs/genética , Animais , Regulação para Baixo , Genética Forense , Água Doce , Hipocampo/metabolismo , Canais Disparados por Nucleotídeos Cíclicos Ativados por Hiperpolarização/genética , Canais Disparados por Nucleotídeos Cíclicos Ativados por Hiperpolarização/metabolismo , Masculino , Camundongos Endogâmicos ICR , MicroRNAs/metabolismo , Modelos Animais , Neurônios/metabolismo , Oceanos e Mares , Reação em Cadeia da Polimerase , Canais de Potássio/genética , Canais de Potássio/metabolismo , RNA Mensageiro/metabolismo , Regulação para CimaRESUMO
BACKGROUND: Housekeeping genes, which show constant protein expression patterns between different tissue types, are very important in molecular biological studies as an internal control for protein research. METHODS: The protein expression profiles of seven housekeeping genes (HPRT1, PPIA, GYS1, TBP, YWHAZ, GAPDH and ACTB) in various rat tissues (cerebrum, cerebellum, cardiac ventricle and atrium, psoas muscle, femoral muscle, liver, spleen, kidney, and aorta) were analyzed by Western blot and compared by coefficient of variation (CV). RESULTS: HPRT1 was stably expressed (CV≤10%) in six tissues (cerebrum, cerebellum, ventricle, femoral muscle, spleen, and kidney), PPIA was stably expressed in five tissues (cerebrum, cerebellum, ventricle, spleen and kidney), YWHAZ was stably expressed in three tissues (cerebrum, cerebellum, and kidney), and GAPDH was stably expressed in four tissues (cerebrum, ventricle, psoas muscle, and kidney). In comparison, GYS1, TBP, and ACTB were found to have CV values over 10% in all tissues. Of the seven genes examined, four (HPRT1, PPIA, YWHAZ, and GAPDH) were found to be stably expressed across multiple organs, with low CV values (≤10%). CONCLUSIONS: These results will provide fundamental information regarding internal controls for protein expression studies and can be used for analysis of postmortem protein degradation patterns in forensic medicine.
RESUMO
We hereby report a case on bronchogenic cyst which is initially non-infected, then becomes infected after bronchoscopic ultrasound (US)-guided transesophageal fine-needle aspiration (FNA). The non-infected bronchogenic cyst appears to be filled with relatively echogenic materials on US, and the aspirate is a whitish jelly-like fluid. Upon contrast-enhanced MRI of the infected bronchogenic cyst, a T1-weighted image shows low signal intensity and a T2-weighted image shows high signal intensity, with no enhancements of the cyst contents, but enhancements of the thickened cystic wall. The patient then undergo video-assisted thoracic surgery 14 days after the FNA. The cystic mass is known to be completely removed, and the aspirate is yellowish and purulent. To understand the image findings that pertain to the gross appearance of the cyst contents will help to diagnose bronchogenic cysts in the future.
RESUMO
BACKGROUND/AIMS: The objective of this study was to evaluate a monoclonal antibody-based test to detect Helicobacter pylori-specific antigen in gastric aspirates from humans. METHODS: Sixty-one volunteers were enrolled in the study. All of the subjects underwent a (13)C-urea breath test (UBT) before esophagogastroduodenoscopy. Gastric aspirates were analyzed for pH and ammonia and used for polymerase chain reaction (PCR), culture, and monoclonal antibody-based detection of H. pylori. Multiple biopsies of the gastric antrum and body were obtained for a rapid urease test (RUT) and histological evaluation. RESULTS: Thirty-six subjects were H. pylori-positive and 25 were H. pylori-negative according to the UBT results. Compared with the H. pylori-negative subjects, H. pylori-positive subjects had a higher pH (4.77±1.77 vs 3.49±1.30, p<0.05) and ammonia level (1,130.9±767.4 vs 184.2±126.3, p<0.0001). The sensitivities and specificities of the PCR test, RUT, culture test, and monoclonal antibody-based test were 100% and 72%, 89% and 100%, 47% and 100%, and 78% and 100%, respectively. CONCLUSIONS: The monoclonal antibody-based test for diagnosing H. pylori infection in gastric aspirates has increased sensitivity compared with the culture test and specificity as high as that of the RUT. The test may be useful as an additive test for examining gastric aspirates.
RESUMO
Leukotriene A4 (LTA4) hydrolase catalyzes the final step in leukotriene B4 (LTB4) synthesis. In addition to its role in LTB4 synthesis, the enzyme possesses aminopeptidase activity. In this study, we sought to define the subcellular distribution of LTA4 hydrolase in alveolar epithelial cells, which lack 5-lipoxygenase and do not synthesize LTA4. Immunohistochemical staining localized LTA4 hydrolase in the nucleus of type II but not type I alveolar epithelial cells of normal mouse, human, and rat lungs. Nuclear localization of LTA4 hydrolase was also demonstrated in proliferating type II-like A549 cells. The apparent redistribution of LTA4 hydrolase from the nucleus to the cytoplasm during type II-to-type I cell differentiation in vivo was recapitulated in vitro. Surprisingly, this change in localization of LTA4 hydrolase did not affect the capacity of isolated cells to convert LTA4 to LTB4. However, proliferation of A549 cells was inhibited by the aminopeptidase inhibitor bestatin. Nuclear accumulation of LTA4 hydrolase was also conspicuous in epithelial cells during alveolar repair following bleomycin-induced acute lung injury in mice, as well as in hyperplastic type II cells associated with fibrotic lung tissues from patients with idiopathic pulmonary fibrosis. These results show for the first time that LTA4 hydrolase can be accumulated in the nucleus of type II alveolar epithelial cells and that redistribution of the enzyme to the cytoplasm occurs with differentiation to the type I phenotype. Furthermore, the aminopeptidase activity of LTA4 hydrolase within the nucleus may play a role in promoting epithelial cell growth.
Assuntos
Núcleo Celular/enzimologia , Epóxido Hidrolases/metabolismo , Leucina/análogos & derivados , Fibrose Pulmonar/enzimologia , Mucosa Respiratória/enzimologia , Frações Subcelulares/metabolismo , Aminopeptidases/antagonistas & inibidores , Animais , Antibióticos Antineoplásicos/farmacologia , Bleomicina/farmacologia , Diferenciação Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Citoplasma/enzimologia , Humanos , Leucina/farmacologia , Leucotrieno A4/metabolismo , Leucotrieno B4/metabolismo , Masculino , Camundongos , Inibidores de Proteases/farmacologia , Alvéolos Pulmonares/efeitos dos fármacos , Alvéolos Pulmonares/enzimologia , Fibrose Pulmonar/patologia , Ratos , Ratos Endogâmicos F344 , Mucosa Respiratória/efeitos dos fármacos , Distribuição TecidualRESUMO
OBJECTIVE: To evaluate the efficacy of CellSlidetrade mark (CS) method in liquid-based gynecologic cytology. METHODS: We compared 1221 specimens prepared by both CS and conventional techniques to evaluate specimen adequacy and cytologic diagnoses. Sensitivity and specificity of these techniques were analyzed in 54 cases using the available histological data. RESULTS: Quality limiting factors, such as obscuring inflammation or blood, were markedly reduced in CS (0.2%) compared to the conventional smear (4.9%). There was a complete agreement in the Bethesda 2001 diagnosis between these methods in 1132 cases (92.7%) out of 1221. 16.7% more ASC cases and 37.5% more low-grade squamous intraepithelial lesions (LSIL) and 21.4% more high-grade SIL (HSIL) were detected on the CS slides than on the conventional smears. Sensitivity rates, relative to histological data, were 91.4% (CS) and 74.3% (conventional) and specificity rates were same (89.5%) for ASC and more severe lesions. Infectious organisms (Trichomonas and Candida, etc.) were readily identifiable in both methods. CONCLUSIONS: CS preparation is more sensitive and equally specific in detecting epithelial abnormalities when compared to the conventional smear. In addition, it has a lower incidence of unsatisfactory results with hypocellularity or >75% obscuration of cells.
Assuntos
Colo do Útero/citologia , Esfregaço Vaginal/métodos , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/patologia , Colo do Útero/patologia , Feminino , Humanos , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/patologia , Esfregaço Vaginal/normas , Displasia do Colo do Útero/diagnóstico , Displasia do Colo do Útero/patologiaRESUMO
Cystic hypersecretory lesions of the breast are rare. These breast lesions include cystic hypersecretory hyperplasia (CHH), atypical CHH, and cystic hypersecretory carcinoma (CHC). The characteristic features are dilated ducts and cysts filled with thyroid colloid-like eosinophilic secretion. Only seven cases of invasive CHC have been reported in the literature. Here, we report an additional case of invasive CHC. The histologic features of the tumor showed both micropapillary intraductal carcinoma and focal high-grade invasive carcinoma in a background of CHH. This case suggests that cystic hypersecretory breast lesions encompass a spectrum of pathologic lesions including CHH, atypical CHH, CHC, and invasive CHC.