• Journal of Veterinary Science
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• 제23권6호
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• pp.89.1-89.7
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• 2022

It is challenging to diagnose metastatic tumors whose cellular morphology is different from the primary. We characterized canine primary pulmonary adenocarcinoma (PAC) and its xenografted tumors by histological and immunohistochemical analyses for critical diagnostic and cancer stem cell (CSC) markers. To generate a tumor xenograft model, we subsequently transplanted the tissue pieces from the PAC into athymic nude mice. Immunohistochemical examination was performed for diagnostic (TTF-1, Napsin A, and SP-A) and CSC markers (CD44 and CD133). The use of CSC markers together with diagnostic markers can improve the detection and diagnosis of canine primary and metastatic adenocarcinomas.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제50권1호
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• pp.56-59
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• 2024

There are very few case reports of the diagnosis and management of concurrent oral cavity and parapharyngeal space tumors. We present a case involving a 49-year-old female who presented with oral cavity squamous cell carcinoma confirmed by biopsy. Initial diagnostic workup revealed a concurrent parapharyngeal mass. Diagnostic studies and surgical therapy were tailored to account for both pathological entities. The patient was treated with a combination of surgery and adjuvant therapy. The surgical strategy was designed to address both lesions simultaneously. One year post-surgery, the patient had good response to therapy with no evidence of persistent or recurrent disease. This report discusses the outcome and treatment of a rare case of concurrent squamous cell carcinoma with a complicating parapharyngeal space tumor. It explores the diagnostic process, comprehensive workup, and the surgical management.

• 대한세포병리학회지
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• 제9권1호
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• pp.95-98
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• 1998

Papillary renal cell carcinoma (RCC) is an uncommon subtype of RCC that has distinctive gross, histologic, and cytogenetic features. The cytologic features of FNA are abundant papillary clusters and relatively few single cells. The cells are usually small and contain uniform nuclei; numerous macrophages with foamy cytoplasm are often found in the background. We describe a case of papillary renal cell carcinoma evaluated by fine needle aspiration cytology(FNAC) in a 42 year-old man. The smear showed a few papillary clusters and numerous macrophages with foamy cytoplasm in the background. With adequate cellularity, papillary RCC can be distinguished reliably from non-papillary RCC by FNAC.

• Imaging Science in Dentistry
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• 제52권2호
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• pp.123-131
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• 2022

Purpose: The aim of this study was to characterize the cone-beam computed tomographic (CBCT) imaging features of central giant cell granuloma (CGCG) of the jawbone. Materials and Methods: This study retrospectively reviewed 26 CBCT studies of histologically proven cases of CGCG during a period of 20 years, from 1999 to 2019. Patients' demographic data were recorded, and radiographic features were assessed (location, border, cortication, appearance of the internal structure, locularity, septation, expansion, cortical perforation, effects on surrounding tissue, whether the lesion crossed the midline, and lesion volume). Results: In this study, CGCGs were seen almost twice as often in the mandible than in the maxilla, and 64.7% of mandibular lesions involved the anterior region. Only 26.9% of lesions crossed the midline, a feature that was considered characteristic of CGCG. Furthermore, 65.4% of lesions were unilocular and 34.6% were multilocular. The correlation between a lesion's size and its locularity was statistically significant, and larger lesions showed a multilocular appearance. The mean volume of multilocular lesions was greater than that of unilocular lesions. Conclusion: CGCGs showed variable radiographic features on CBCT, and this imaging modality is highly effective at demonstrating the radiographic spectrum and lesional extent of CGCGs in the jawbone.

• Korean Journal of Radiology
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• 제2권2호
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• pp.117-120
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• 2001

We report a case of adult granulosa cell tumor arising in the scrotal tunics. The patient was a 34-year-old man who presented with right scrotal swelling, first noticed four months previously. Under the initial clinical impression of epididymo-orchitis, antibiotic treatment was instituted but there was no response. The paratesticular nodules revealed by ultrasound and magnetic resonance imaging mimicked intratesticular lesion, and radical orchiectomy was performed. Although several cases of adult testicular granulosa cell tumor, have been reported, the occurrence of this entity in the paratesticular area has not, as far as we are aware, been previously described.

• 대한자기공명의과학회:학술대회논문집
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• 대한자기공명의과학회 1997년도 제2차 추계학술대회 초록집
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• pp.15-15
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• 1997

• Imaging Science in Dentistry
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• 제46권4호
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• pp.273-278
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• 2016

Plasma cell leukemia (PCL) is an aggressive form of multiple myeloma where there is hematogenous spread of abnormal plasma cells into the periphery. This is opposed to multiple myeloma, where the abnormal plasma cells stay in the bone marrow. PCL is more common in males than females, and is also more common in African-Americans than Caucasians. Signs and symptoms of PCL include, but are not limited to, renal insufficiency, hypercalcemia, anemia, lytic bone lesions, thrombocytopenia, hepatomegaly, and splenomegaly. Here, we discussed a case of a 71-year-old Caucasian female recently diagnosed with primary PCL with radiographic features of this disease throughout the body, with an emphasis on the maxillofacial skeleton and relevance from a dental standpoint.

• Asian Pacific Journal of Cancer Prevention
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• 제14권2호
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• pp.1147-1150
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• 2013

Background: Cancer diagnostic biomarkers have a wide range of applications that include early detection of oral precancerous lesions and oral squamous cell carcinomas, and assessing the metastatic status of lesions. The interferon stimulated ISG15 gene encodes an ubiquitin-like protein, which conjugates to stabilize activation status of associated proteins. Hence a deregulated expression of ISG15 may promote carcinogenesis. Indeed overexpression of ISG15 has been observed in several cancers and hence it has been proposed as a strong candidate cancer diagnostic biomarker. Given the emerging relationship between malignant transformation and ISG15, we sought to examine the expression pattern of this gene in tumor biopsies of oral squamous cell carcinoma (OSCC) tissues collected from Indian patients. Materials and Methods: Total RNA isolated from thirty oral squamous cell carcinoma tissue biopsy samples were subjected to semi-quantitative RT-PCR with ISG15 specific primers to elucidate the expression level. Results: Of the thirty oral squamous cell carcinomas that were analyzed, ISG15 expression was found in twenty four samples (80%). Twelve samples expressed low level of ISG15, six of them expressed moderately, while the rest of them expressed very high level of ISG15. Conclusions: To the best of our knowledge, the results show for the first time an overexpression of ISG15 in up to 80% of oral squamous cell carcinoma tissues collected from Indian patients. Hence ISG15 may be explored for the possibility of use as a high confidence diagnostic biomarker in oral cancers.

• 대한자기공명의과학회:학술대회논문집
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• 대한자기공명의과학회 1996년도 추계학술대회 초록집
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• pp.75-75
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• 1996

• Tuberculosis and Respiratory Diseases
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• 제40권6호
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• pp.700-708
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• 1993

연구배경 : 폐암은 우리나라에서 흔한 악성 종양중에 하나이다. 또한 정확한 조직학적 진단과 병기판정이, 특히 소세포암의 경우, 치료방침이 달라지기 때문에 중요하다. 이에 본 연구는 폐암의 진단수기에 따른 진단율 및 세포진법의 정확도를 조사하였다. 방법 : 1986년 1월부터 1992년 12월까지 만 7년간 전주예수병원 외래 및 입원을 통해 폐암으로 등록된 환자 중 의무기록열람이 가능하고 조직학적 검사 및 세포진법으로 폐암으로 확진된 683명을 대상으로, 각종 진단수기의 진단율 및 세포진법의 정확도를 조사하였다. 결과: 1) 대상환자의 연령 및 성별분포 남녀비가 5.57:1이였고, 연령분포는 60대가 41.4%, 50대가 30.2%, 70대가 17.0%, 40대가 7.9%, 30대가 2.5%, 80대가 1.3% 및 20대가 0.2%였다. 2) 조직학적 형태에 따른 폐암의 발현빈도는 편평상피암 47.7%, 소세포암 23.9%, 선암 22.8%, 폐포세포암 2.5%, 대세포암 1.2%, 혼합형이 1.2%, 미분화세포암 0.6% 및 악성 섬유성 조직세포종이 0.2%(1예)였다. 3) 폐암이 가장 많이 발생하는 폐엽은 좌상엽과 우하엽이였으며, 각 발생부위에 따른 진단수기의 차이는 없었다. 4) 중심병변에서 기관지 내시경검사는 매우 정확하고 자주 사용되는 진단수기였으며, 말초병변에서는 경피 폐침생검이 비교적 정확한 진단법이었다. 5) 진단수기별 진단율은 기관지 조직생검법 81.3%, 기관지찰과물 세포진법 57.5%, 객담세포진법 31.1%, 경피 폐침생검법이 69.6%, 그리고 경기관지 폐생검법이 61.6%였다. 6) 세포진법이 조직학적 진단과 일치하는 정확도는 기관지찰과물 세포진법 91.3%, 객담세포진법 31.1%, 경피 폐침생검법이 69.6%, 그리고 경기관지 폐생검법이 61.6%였다. 7) 세포진법이 조직학적 진단과 일치하는 정확도는 기관지찰과물 세포진법 91.3%, 객담세포진법 98.4%였다. 8) 객담세포진법은 3~5회 정도 새행하는 것이 바람직하다. 결론: 기관지 내시경검사는 폐암의 진단에 있어서 조직학적 진단에 중요한 검사이다. 아울러, 쉽게 행할 수 있는 객담검사의 진단율 향상에 대한 관심을 가져야 할 것으로 사료된다.