No abstract available in English.
Adenocarcinoma, Bronchiolo-Alveolar* ; Pathology*

Open brochus with diffuse narrowing, stretching, and leafless tree appearance of the bronchi is the well know bronchographic criterior of bronchiloalveolar carcinoma. Though similar findings are expected in CT, authors couldfind no report concerninng the open bronchus sign of bronchioloalveolar carcinoma demonstrated by CT., Authorspresents CT of bronchioloalveolar carcinoma showing lobar or segmental distribution and patent bronchus within thetumor mass.
Adenocarcinoma, Bronchiolo-Alveolar ; Bronchi ; Trees

PURPOSE: To search for CT findings which helpfully differentiate mucinous from nonmucinousbronchi-oloalveolar carcinoma and to assess the difference in stages between the two types of tumors. Twenty-two patients with pathologically proven bronchioloalveolar carcinoma (BAC) were included inthis study. On the basis of CT findings, tumors were classified as either solitary or multiple and as eithermass/nodule, consolidation, or mixed type. CT stages of the tumors were determined by two radiologists andconclusions were reached by consensus. RESULTS: Twelve patients had nonmucinous BACs and ten had mucinous BACs.Among the ten cases of mucinous BAC, six were solitary and four were multiple. These were mass/nodule (n=3),consolidation (n=5), and mixed pattern (n=2). In contrast, among the twelve cases of nonmucinous BAC, six weresolitary and six were multiple. All were mass/nodule, except for one mixed type. Among the mucinous BACs, threewere operable and seven (above stage IIIa) were inoperable. Among the nonmucinous BACs, four were operable andeight were inoperable. CONCLUSION: Consolidation was more common in mucinous BAC and mass/nodule was more commonin non-mucinous BAC (p<0.05). There was no difference in tumor stages between mucinous and nonmucinous types ofBAC (p>0.05).
Adenocarcinoma, Bronchiolo-Alveolar ; Consensus ; Humans ; Mucins*

Non-resolving or slowly resolving pulmonary infiltrates in spite of administering adequate antimicrobial therapy are a clinical diagnostic challenge for physicians. The rate of radiographic resolution varies with the patients' age, the underlying comorbidities, the extent of radiographic involvement, the functional status and the causal pathogens. It is important to differentiate non-resolving or slowly resolving bacterial pneumonia from other uncommon infectious pneumonias or malignancies that require invasive diagnostic techniques to confirm the diagnosis. Bronchioloalveolar carcinoma can present with various clinical and radiographic features. Unfortunately, the radiographic similarity of consolidative BAC to pneumonia often leads to an incorrect diagnosis of pneumonia and possibly significant delays in obtaining appropriate diagnostic studies. We describe here a case of a mixed adenocarcinoma and bronchioloalveolar carcinoma that was initially diagnosed as pneumonia due to the consolidation pattern on the radiography and the patient's initial improvement with antibiotic treatment.
Adenocarcinoma ; Adenocarcinoma, Bronchiolo-Alveolar ; Comorbidity ; Delayed Diagnosis ; Pneumonia ; Pneumonia, Bacterial

A very uncommon tumor, primary intraosseous carcinoma (PIOC), is a carcinoma arising within the jaw. The definite diagnosis of PIOC is often difficult as the lesion must be distinguished from alveolar carcinoma that may invade the bone from the overlying soft tissues or from the tumors that have metastasized to the jaw from a distant site. A case of PIOC arising in the mandible is presented. The clinical, radiologic, and histologic features are described. This rare lesion should be considered in any differential diagnosis of a jaw radiolucency.
Adenocarcinoma, Bronchiolo-Alveolar ; Diagnosis ; Diagnosis, Differential ; Jaw ; Mandible* ; Odontogenic Tumors

Intraocular tumors are uncommon and an intraocular metastatic carcinoma is extremely rare. An intraocular metastasis in adults most often originates from the breast or the lung. An intraocular lesion may be the first presentation of cancer and a search should be made to locate the primary tumor. To our knowledge, an intraocular metastasis of a bronchioloaveolar carcinoma has not reported in Korea. We report a case of a bronchioloalveolar carcinoma presenting with the initial symptom of a unilateral visual disturbance due to an intraocular metastasis.
Adenocarcinoma, Bronchiolo-Alveolar* ; Adult ; Breast ; Humans ; Korea ; Lung ; Neoplasm Metastasis*

PURPOSE: The purpose of this study is to describe the characteristic high-resolution(HR) Ct findings ofsolitary nodular bronchioloalveolar carcinoma(BAC) of the lung which are valuable for specific diagnosis of thedisease. MATERIALS AND METHODS: HRCT scans of 46 patients (31 with malignant and 15 with benign lesion) with asolitary pulmonary nodule seen on chest radiograph were distributed in random order and analyzed retrospectively.Two blinded observers jointly analyzed the marginal and internal characteristics of nodules as seen on HRCT, anddecisions on the findings were reached by consensus. Stepwise discriminant analysis for characteristic findings ofBAC was performed. RESULTS: The most frequent CT findings of BAC (n=15) were internal bubble lucency (14/15,93%)(p=0.001), area of ground-glass opacity (12/15, 80%;average 58% of tumor volume)(p=0.0001), pleural tag(12/15,80%;p=0/097), and lobulated and spiculated margin(8/15, 53%;p=0.459). Findings of ground-glass opacity(p=0.0001)and bubble lucency(p=0.0187) appeared to be discriminantin the diagnosis of BAC. CONCLUSION: Peripheral pulmonarynodules containing an area of ground-glass opacity associated with internal bubble-lucency are characteristic ofBAC. Specific histologic diagnosis of solitary nodular BAC can be suggested by careful analysis of HRCT findings.
Adenocarcinoma, Bronchiolo-Alveolar* ; Consensus ; Diagnosis ; Humans ; Lung* ; Radiography, Thoracic

Bronchioloalveolar carcinoma may present with a variety of radiographic and clinical appearances. The authors reviewed the radiographs of 17 patients with pathologically proven bronchioloalveolar carcinoma, retrospectively. Seven cases were of the localized form. Among the seven five showed a localized mass and two showed localized consolidation. Ten cases were of the diffuse form. Among the ten, three showed diffuse nodules, two showed diffuse consolidation, and five showed a combined pattern of nodules and consolidations. Progression of disease was observed in 9 patients. In these cases, localized forms progressed to a diffuse forms and nodular patterns progressed to a consolidation pattern. Seven cases of the diffuse form were given antituberculous medications on hospital admission. In summary, bronchioloalveolar carcinoma has varied radiographic patterns, and often mimicks other pulmonary diseases such as pulmonary tuberculosis.
Adenocarcinoma, Bronchiolo-Alveolar* ; Humans ; Lung Diseases ; Retrospective Studies ; Tuberculosis, Pulmonary

A 23-year old woman was admitted to our hospital with hemoptysis. The chest X-ray showed reticulonodular opacity and multiple cysts throughout the entire lung field. The chest CT scan revealed numerous bilateral cysts with various sizes, some of them with thickened walls. An open lung wedge resection was performed. The resected specimen showed scattered small nodules, 0.3 to 0.6 cm in size. Microscopically, each nodule was composed of atypical glands with an occasional papillary architecture spreading to the alveolar septa, which were morphologically consistent with a papillary adenocarcinoma with a bronchioloalveolar carcinoma growth pattern. Immunochemically, the tumor cells were negative for the S-100 protein. The patient was diagnosed with an adenocarcinoma of the lung. A variety of diseases can produce or mimic multiple, thin-walled cysts in the lung. Lung cancer with multiple cysts is quite rare. Nevertheless, adenocarcinoma should be a diagnostic consideration. We report a case of a multiple cystic adenocarcinoma of the lung.
Adenocarcinoma ; Adenocarcinoma, Bronchiolo-Alveolar ; Adenocarcinoma, Papillary ; Female ; Hemoptysis ; Humans ; Hydrazines ; Lung ; Lung Neoplasms ; S100 Proteins ; Thorax

Congenital cystic adenomatoid malformation (CCAM), which is classified into five types according to size and bronchial invasion, is a rare type of developmental anomaly of the lung. CCAM is occasionally accompanied by malignancy, such as bronchioloalveolar carcinoma (BAC) or rhabdomyosarcoma. As defined by the WHO, atypical adenomatous hyperplasia (AAH) is a non-invasive spread of atypical epithelial cells in single rows along the alveolar wall, within a lesion that is usually less than 5 mm in diameter. AAH was also regarded as a pre-invasive neoplasia, especially associated with BAC and adenocarcinoma. We report a case of type II CCAM with AAH in adults, with a review of the references.
Adenocarcinoma ; Adenocarcinoma, Bronchiolo-Alveolar ; Adult ; Cystic Adenomatoid Malformation of Lung, Congenital ; Epithelial Cells ; Humans ; Hyperplasia ; Lung ; Rhabdomyosarcoma