1.Acinic Cell Carcinoma of the Palatine Tonsil: A Brief Case Report.
Korean Journal of Pathology 2010;44(4):441-443
Acinic cell carcinoma (ACC) is a rare, low-grade malignancy of the salivary glands. Most cases occur in the major salivary glands, especially the parotid gland, with only a few cases involving the minor salivary gland previously described. A 67-year-old male patient was admitted complaining of an obstructive feeling in the throat. On examination, a lobulated mass in the tonsillar surface was noticed. Tonsillectomy was performed under general anesthesia. Histopathological examination of the mass revealed sheets of large, polygonal acinar cells with granular, slightly basophilic cytoplasm, which led to the diagnosis of ACC. Here, we present a case of low-grade ACC of the palatine tonsil, which we believe to be the first reported case of ACC in this location.
Acinar Cells
;
Aged
;
Anesthesia, General
;
Basophils
;
Carcinoma, Acinar Cell
;
Cytoplasm
;
Humans
;
Male
;
Palatine Tonsil
;
Parotid Gland
;
Pharynx
;
Salivary Glands
;
Salivary Glands, Minor
;
Secretory Vesicles
;
Tonsillectomy
2.Two cases of angioedema due to C1 inactivator deficiency.
Ji Young SUH ; Jae Kyung CHOI ; Ha Baik LEE ; Chan Keum PARK
Pediatric Allergy and Respiratory Disease 1993;3(1):121-127
No abstract available.
Angioedema*
3.Epithelioid hemangioendothelioma of the liver.
Clinical and Molecular Hepatology 2013;19(3):315-319
No abstract available.
Adult
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Antigens, CD31/metabolism
;
Antigens, CD34/metabolism
;
Female
;
Hemangioendothelioma, Epithelioid/metabolism/*pathology/radiography
;
Humans
;
Immunohistochemistry
;
Liver Neoplasms/metabolism/*pathology/radiography
;
Magnetic Resonance Imaging
;
Positron-Emission Tomography
;
Tomography, X-Ray Computed
;
von Willebrand Factor/metabolism
4.A Case of Malignant Transformation of Juvenile Pilocytic Astrocytoma with Neurofibromatosis Type 1.
Ki Seong EOM ; Keum Ha CHOI ; Tae Young KIM
Journal of the Korean Child Neurology Society 2011;19(3):292-297
Pilocytic astrocytoma (PA) is a World Health Organization (WHO) grade I tumor typically affecting children and young adults. In general, surgical resection for PA is thought to be curative, and tumor recurrence or malignant transformation is relatively rare. Herein, we report an extremely rare case of a malignant transformation of PA. Five years prior, the patient underwent subtotal resection for PA in the left suprasellar area and left side brain parenchyma of the third ventricle, followed by gamma knife radiosurgery for remnants of the tumor. Four years after surgery, recurrent PA developed, and surgery was performed through an anterior interhemispheric transcallosal approach. One year after surgery, a rapidly growing tumor in the left basal ganglia and hypothalamus was discovered, and subtotal removal was performed. The histological diagnosis was glioblastoma. To the best of our knowledge, malignant transformation of PA has not been reported in Korea. Through review of the literature, we found malignant transformation to be limited solely to patients treated with radiotherapy, which is an observation that should be validated in future studies.
Astrocytoma
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Basal Ganglia
;
Brain
;
Child
;
Glioblastoma
;
Humans
;
Hypothalamus
;
Korea
;
Neurofibromatoses
;
Neurofibromatosis 1
;
Radiosurgery
;
Recurrence
;
Third Ventricle
;
World Health Organization
;
Young Adult
5.Reactive lymphoid hyperplasia of the liver.
Clinical and Molecular Hepatology 2013;19(1):87-91
6.Syringoid Eccrine Carcinoma on the Dorsum of Hand.
Sun Yong KWON ; Ui Kyung KIM ; Hyun Min NAM ; Keum Ha CHOI ; Kun PARK ; Seok Don PARK
Korean Journal of Dermatology 2012;50(8):755-758
No abstract available.
Hand
7.Ceruminous Pleomorphic Adenoma of the External Auditory Canal: Two Case Reports and Review of the Literature.
Juyong CHUNG ; Dam Ho LEE ; Keum Ha CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2017;60(4):191-195
Ceruminous glands are specialized apocrine glands located in the external auditory canal (EAC). Pleomorphic adenoma (PA) of the EAC is derived from these ceruminous glands. Tumors arising from these ceruminous glands are rare. Furthermore, ceruminous PA of the EAC is extremely rare. About 35 cases have been reported to date in the English literature, and only 4 cases have been reported in Korea. There are several controversial issues about these rare tumors such as nomenclature, histogenesis and classification. We report here on two cases of ceruminous PA and review the cases in the Korean literature.
Adenoma
;
Adenoma, Pleomorphic*
;
Apocrine Glands
;
Classification
;
Ear Canal*
;
Korea
8.Mucinous Non-neoplastic Cyst of the Pancreas
Jun Hyung KIM ; Dong Eun PARK ; Keum Ha CHOI
The Korean Journal of Gastroenterology 2019;73(4):235-238
Cystic neoplasms of the pancreas consist of a wide range of pathological entities and are being detected more frequently due to advances in cross-sectional imaging modalities and increasing numbers of periodic health checkups. The majority of pancreatic cystic neoplasms are intraductal papillary mucinous neoplasms, serous neoplasms, and mucinous cystic neoplasms, but recently, rare cases of mucinous non-neoplastic cyst of the pancreas (MNCP) have been reported, and despite the availabilities of modern imaging systems, such as MRI and CT, the differentiation of non-neoplastic and neoplastic cysts remains challenging. Herein, we report our experience of a 65-year-old male case with an MNCP.
Aged
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Humans
;
Magnetic Resonance Imaging
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Male
;
Mucins
;
Pancreas
;
Pancreatic Cyst
;
Pancreatic Neoplasms