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Veron Sanchez A, Santamaria Guinea N, Cayon Somacarrera S, Bennouna I, Pezzullo M, Bali MA. Rare Solid Pancreatic Lesions on Cross-Sectional Imaging. Diagnostics (Basel) 2023; 13:2719. [PMID: 37627978 PMCID: PMC10453474 DOI: 10.3390/diagnostics13162719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023] Open
Abstract
Several solid lesions can be found within the pancreas mainly arising from the exocrine and endocrine pancreatic tissue. Among all pancreatic malignancies, the most common subtype is pancreatic ductal adenocarcinoma (PDAC), to a point that pancreatic cancer and PDAC are used interchangeably. But, in addition to PDAC, and to the other most common and well-known solid lesions, either related to benign conditions, such as pancreatitis, or not so benign, such as pancreatic neuroendocrine neoplasms (pNENs), there are solid pancreatic lesions considered rare due to their low incidence. These lesions may originate from a cell line with a differentiation other than exocrine/endocrine, such as from the nerve sheath as for pancreatic schwannoma or from mesenchymal cells as for solitary fibrous tumour. These rare solid pancreatic lesions may show a behaviour that ranges in a benign to highly aggressive malignant spectrum. This review includes cases of an intrapancreatic accessory spleen, pancreatic tuberculosis, solid serous cystadenoma, solid pseudopapillary tumour, pancreatic schwannoma, purely intraductal neuroendocrine tumour, pancreatic fibrous solitary tumour, acinar cell carcinoma, undifferentiated carcinoma with osteoclastic-like giant cells, adenosquamous carcinoma, colloid carcinoma of the pancreas, primary leiomyosarcoma of the pancreas, primary and secondary pancreatic lymphoma and metastases within the pancreas. Therefore, it is important to determine the correct diagnosis to ensure optimal patient management. Because of their rarity, their existence is less well known and, when depicted, in most cases incidentally, the correct diagnosis remains challenging. However, there are some typical imaging features present on cross-sectional imaging modalities that, taken into account with the clinical and biological context, contribute substantially to achieve the correct diagnosis.
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Affiliation(s)
- Ana Veron Sanchez
- Hôpital Universitaire de Bruxelles, Institut Jules Bordet, 1070 Brussels, Belgium; (I.B.)
| | | | | | - Ilias Bennouna
- Hôpital Universitaire de Bruxelles, Institut Jules Bordet, 1070 Brussels, Belgium; (I.B.)
| | - Martina Pezzullo
- Hôpital Universitaire de Bruxelles, Hôpital Erasme, 1070 Brussels, Belgium
| | - Maria Antonietta Bali
- Hôpital Universitaire de Bruxelles, Institut Jules Bordet, 1070 Brussels, Belgium; (I.B.)
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Ashfaq A, Thalambedu N, Atiq MU. A Rare Case of Pancreatic Cancer: Undifferentiated Carcinoma of the Pancreas With Osteoclast-Like Giant Cells. Cureus 2022; 14:e25118. [PMID: 35733473 PMCID: PMC9205718 DOI: 10.7759/cureus.25118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2022] [Indexed: 12/24/2022] Open
Abstract
Ductal adenocarcinoma of the pancreas is the most common pancreatic cancer, but undifferentiated carcinoma of the pancreas with osteoclast-like giant cells (UC-OGCs) is an exceedingly rare tumor. Microscopically, this tumor is characterized by the presence of two different cellular elements, namely, spindle or ovoid mononuclear cells and osteoclast-like giant cells (OGCs). Here, we report a rare case of UC-OGCs in a 79-year-old male with a one-month history of epigastric abdominal pain and unintentional weight loss. A blood workup revealed new-onset type 2 diabetes mellitus, and a computed tomography scan of the abdomen showed acute pancreatitis with a hypodense lesion in the head of the pancreas concerning for malignancy. He underwent an endoscopic ultrasound that also revealed a mass in the head of the pancreas, but no lymphadenopathy was observed. Biopsy was obtained and histopathology revealed UC-OGCs. We present this case to increase awareness of this rare clinical entity in patients presenting with acute-onset pancreatitis.
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Rusu A, Giuşcă SE, Apostol DGC, Ionescu L, Căruntu ID. Cephalic undifferentiated carcinoma with osteoclast-like giant cells arising from the main pancreatic duct: case report and literature review. Arch Clin Cases 2021; 6:6-21. [PMID: 34754903 PMCID: PMC8565694 DOI: 10.22551/2019.22.0601.10148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Undifferentiated carcinoma with osteoclast-like giant cell (UCOGC) is a ductal carcinoma variant with a recently reported more protracted survival and pathognomonic histology comprising two cell populations: the mononuclear tumoral cells and nontumoral multinucleated giant cells. It usually presents as a large heterogenic tumor with mixed solid-cystic components. The tumor develops from the ductal epithelium but the sequence of epithelial changes is often not identified due to the rapid tumoral growth and associated necrotic changes. We report a case of a 76-year-old patient diagnosed with cephalic UCOGC originating in the epithelium of the main pancreatic duct with endoluminal growth and foci of other ductal neoplasms (high-grade pancreatic intraepithelial neoplasia (PanIN) and conventional ductal carcinoma). The particularity of our case consists in the identification of the columnar epithelium conversion, through high-grade PanIN, into UCOGC specific malignant features, in a large size tumor - aspect usually reported in small tumors. Alongside our case we also present a brief literature review of cephalic UCOGC case reports and case series.
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Affiliation(s)
- Andreea Rusu
- Department of Morphofunctional Sciences I - Histology, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Romania
| | - Simona Eliza Giuşcă
- Department of Morphofunctional Sciences I - Pathology, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Romania
| | - Delia Gabriela Ciobanu Apostol
- Department of Morphofunctional Sciences I - Pathology, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Romania.,Department of Pathology "Sf. Spiridon" County Clinical Emergency Hospital, Iaşi, Romania
| | - Lidia Ionescu
- Department of Surgery, Third Surgery Clinic, "St. Spiridon" County Clinical Emergency Hospital, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Romania
| | - Irina-Draga Căruntu
- Department of Morphofunctional Sciences I - Histology, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Romania
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Cavalcanti E, Schena N, Serino G, Lantone G, Armentano R. Assessment and management of undifferentiated carcinoma with osteoclastic like giant cells of the pancreas: a case report and revision of literature. BMC Gastroenterol 2021; 21:247. [PMID: 34078293 PMCID: PMC8170928 DOI: 10.1186/s12876-021-01779-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 04/20/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Undifferentiated carcinoma with osteoclast-like giant cells (UCOGCs) is a rare and aggressive non endocrine pancreatic carcinoma characterized by the presence of osteoclastic giant cells mixed with mononuclear cell. Very few cases have been reported in the literature and the histogenesis is controversial as, at the time of diagnosis, the tumor is often of advanced size and stage and it is difficult to pathologically observe its relationship with the pancreatic duct. CASE PRESENTATION We present a case of 65-year-old male patient presenting with abdominal pain, nausea, and weight loss, which was treated with surgical resection. Histological examination revealed an undifferentiated pancreatic carcinoma with osteoclast-like giant cells. The patient underwent to a routine pylorus preserving pancreatoduodenectomy. Actually, the patient was in good performance status and disease-free five months. CONCLUSIONS Based on the present case and limited previous data, further researches preferably with large cohorts are necessary to clarify the pathogenesis of the neoplasm. However, as show in this case, histopathological and immunohistochemically studies are the gold standard for the diagnosis of UCPOGC. Investigation of the genomic alterations in UPOGCs could help to explain the histologic diversity of variant tumor and could provide a genetic basis for prognosis and treatment.
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Affiliation(s)
- Elisabetta Cavalcanti
- Histopathology Unit of National Institute of Gastroenterology "S. de Bellis," Research Hospital, Via Turi 27, 70013, Castellana Grotte, Bari, Italy.
| | - Nicolo' Schena
- Histopathology Unit of National Institute of Gastroenterology "S. de Bellis," Research Hospital, Via Turi 27, 70013, Castellana Grotte, Bari, Italy
| | - Grazia Serino
- Laboratory of Experimental Immunopathology, National Institute of Gastroenterology "S. de Bellis," Research Hospital, Castellana Grotte, Bari, Italy
| | - Giulio Lantone
- Surgery Unit of National Institute of Gastroenterology "S. de Bellis," Research Hospital, Castellana Grotte, Bari, Italy
| | - Raffaele Armentano
- Histopathology Unit of National Institute of Gastroenterology "S. de Bellis," Research Hospital, Via Turi 27, 70013, Castellana Grotte, Bari, Italy
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Xu M, Chen W, Wang D, Nie M. Clinical Characteristics and Prognosis of Osteoclast-like Giant Cell Tumors of the Pancreas Compared with Pancreatic Adenocarcinomas: A Population-Based Study. Med Sci Monit 2020; 26:e922585. [PMID: 32716010 PMCID: PMC7409385 DOI: 10.12659/msm.922585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background The incidence of osteoclast-like giant cell tumor of the pancreas (OGTP) is very low, and relatively little OGTP clinical data is available. The present study, therefore, sought to conduct a more comprehensive analysis of the clinical characteristics and prognosis of OGTP. Material/Methods A large population-based cohort analysis was conducted using the Surveillance, Epidemiology and End Results (SEER) registry. We conducted a systematic assessment of the demographic and clinical characteristics of these patients, in addition to assessing available prognostic and therapeutic data corresponding to their disease. We further compared overall survival (OS) in these OGTP and pancreatic adenocarcinoma (PA) patient cohorts, adjusting for sex, grade, stage, and surgical treatment by propensity score matching (PSM). Results We included a total of 47 OGTP patients and 73 150 PA patients in the present analysis. The mean ages of PA and OGTP diagnosis were 68.0 and 62.8 years, respectively. Compared with PA patients, OGTP patients were more likely to be female (70.2% versus 48.7%, P<0.01), to have early-stage disease, to have lower rates of lymph node metastasis (17.0% versus 28.8%, P<0.01) and distant metastasis (17.0% versus 45.1%, P<0.01), and to have higher rates of tumor resection (70.2% versus 15.4%, P<0.01). OGTP patients also had a significantly longer median OS than did PA patients (13 months versus 6 months; hazard ratio [HR] 0.55, 95% confidence interval [CI] 0.37–0.57, P<0.0001). No significant differences in tumor site preferences were detected. Our findings also suggested that being female, having early-stage disease, and undergoing surgical resection may be associated with a more favorable prognosis in patients with OGTP. Conclusions OGTP patients had distinctive clinical characteristics and a better prognosis compared with PA patients. Understanding these differences will help clinicians accurately recognize these diseases. Radical resection was beneficial to the survival of OGTP patients.
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Affiliation(s)
- Mingfang Xu
- Cancer Center of Daping Hospital, Third Military Medical University, Chongqing, China (mainland)
| | - Wei Chen
- Department of Orthopaedic Surgery, People's Hospital of Fengjie County, Chongqing, China (mainland)
| | - Dong Wang
- Cancer Center of Daping Hospital, Third Military Medical University, Chongqing, China (mainland)
| | - Mao Nie
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
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Yepuri N, Pruekprasert N, Ramani N, France A, Sarpong JO, Jain A, Cooney RN. Osteoclast-like giant cell tumor of the pancreas-an unusual presentation in a patient with large mantle cell lymphoma. J Surg Case Rep 2018; 2018:rjy341. [PMID: 30591835 PMCID: PMC6302238 DOI: 10.1093/jscr/rjy341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 12/07/2018] [Indexed: 01/14/2023] Open
Abstract
Osteoclast-like giant cell tumor of the pancreas is very rare. We report a 78-year-old male who was previously treated for large mantle cell lymphoma, was found to have an increased uptake in a peri-pancreatic node from his restaging PET scan. Endoscopic ultrasound-directed fine-needle aspiration of the mass and lymph node revealed an undifferentiated carcinoma with osteoclast-like giant cells. Osteoclast-like giant cell tumors of the pancreas are frequently found to be unresectable at diagnosis due to their large size (>5 cm). In our patient, due to its small size (<3 cm) sub-total pancreatectomy was performed. Three years from the surgery, the patient is doing well without recurrence. This case report intends to increase provider awareness that in the setting of new pancreatic lesions in a patient with previous history of lymphoma, a high index of suspicion for a primary pancreatic lesion should be included in the differential diagnosis.
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Affiliation(s)
- Natesh Yepuri
- Department of Surgery, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Napat Pruekprasert
- Department of Surgery, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Nisha Ramani
- Department of Pathology, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Alexandra France
- Department of Surgery, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - James Osei Sarpong
- Department of Surgery, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Ajay Jain
- Department of Surgery, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Robert N Cooney
- Department of Surgery, SUNY Upstate Medical University, Syracuse, NY 13210, USA
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Saito H, Kashiyama H, Murohashi T, Sasaki K, Misawa R, Ohwada S. Case of Six-Year Disease-Free Survival with Undifferentiated Carcinoma of the Pancreas. Case Rep Gastroenterol 2016; 10:472-478. [PMID: 27721735 PMCID: PMC5043253 DOI: 10.1159/000448878] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 07/29/2016] [Indexed: 01/05/2023] Open
Abstract
Undifferentiated carcinoma of the pancreas (UDC) is rare and has a dismal prognosis. Here, we report a case of 6-year disease-free survival with a mixed type of UDC and UDC with osteoclast-like giant cells, with a high mitotic index as well as perineural, lymphatic, vessel, and diaphragmatic invasion. The patient underwent radical distal pancreatectomy and was subsequently treated with adjuvant chemotherapy using gemcitabine plus S-1 followed by maintenance chemotherapy with oral tegafur-uracil. The patient has been doing well with no evidence of recurrence for more than 6 years after surgery.
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Affiliation(s)
- Hiroyuki Saito
- Department of Surgery, IMS Ota Central General Hospital, Ota, Japan; Department of Surgery, Konosu Kyosei Hospital, Konosu, Japan
| | | | | | - Kazunari Sasaki
- Department of Surgery, IMS Ota Central General Hospital, Ota, Japan
| | - Ryosuke Misawa
- Department of Surgery, IMS Ota Central General Hospital, Ota, Japan
| | - Susumu Ohwada
- Department of Surgery, IMS Ota Central General Hospital, Ota, Japan
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8
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Sivanandham S, Subashchandrabose P, Muthusamy KR. FNA diagnosis of osteoclast-like giant cell tumor of the pancreas. J Cytol 2013; 29:270-2. [PMID: 23326036 PMCID: PMC3543601 DOI: 10.4103/0970-9371.103951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Osteoclast-like giant cell tumor of the pancreas is a rare non-endocrine neoplasm composed of reactive multinucleated giant cells admixed with mononuclear stromal cells. We report a case of osteoclast-like giant cell tumor of the pancreas in a 58-year-old female with vague clinical symptoms. Endoscopic ultrasound-guided aspirate from the mass revealed numerous characteristic osteoclast-like giant cells.
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Affiliation(s)
- Shanthakumari Sivanandham
- Department of Pathology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
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9
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Togawa Y, Tonouchi A, Chiku T, Sano W, Doki T, Yano K, Uno H, Muronoi T, Kaneoya K, Shinagawa T, Harigaya K, Toyoda A. A case report of undifferentiated carcinoma with osteoclast-like giant cells of the pancreas and literature review. Clin J Gastroenterol 2010; 3:195-203. [PMID: 26190247 DOI: 10.1007/s12328-010-0160-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Accepted: 06/06/2010] [Indexed: 02/07/2023]
Abstract
Osteoclast-like giant cell tumors rarely arise in the pancreas. Here we report the case of a 78-year-old woman who was diagnosed with a well-defined 3 cm multilocular mass in the pancreatic body by the use of ultrasonography, computed tomography and magnetic resonance imaging. The rim and the septa of the tumor were well enhanced. The distal pancreas was removed with the spleen and the peripancreatic lymph nodes. Macroscopically, the mass was composed predominantly of a multilocular cystic tumor filled with hemorrhagic necrosis, and partly composed of solid components. A histopathological study showed a proliferation of multinucleated osteoclast-like giant cells and spindle cells. Although the predominant tumor cells were strongly positive for vimentin and CD68 and negative for epithelial markers, there were some sparsely scattered cytokeratin-positive neoplastic glands. Seventeen months after surgery, the patient is still alive and has had no recurrence. Below we review 32 cases of osteoclast-like giant cell tumor of the pancreas that have been reported in English literature since 2000.
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Affiliation(s)
- Yasuhiro Togawa
- Department of Surgery, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan.
| | - Akihiko Tonouchi
- Department of Surgery, Saitama Red Cross Hospital, 8-3-33 Kamiochiai, Chuou, Saitama, Saitama, 338-8553, Japan
| | - Tsuyoshi Chiku
- Department of Surgery, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Wataru Sano
- Department of Surgery, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Tomoko Doki
- Department of Surgery, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Kentaro Yano
- Department of Surgery, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Hidehiko Uno
- Department of Surgery, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Tomohiro Muronoi
- Department of Surgery, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Katsuhiko Kaneoya
- Department of Radiology, Kamitsuga General Hospital, 1-1033 Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Takashi Shinagawa
- Department of Gastroenterology, Kamitsuga General Hospital, 1-1033, Shimota, Kanuma, Tochigi, 322-8550, Japan
| | - Kenichi Harigaya
- Department of Molecular and Tumor Pathology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuou, Chiba, Chiba, 260-8677, Japan
| | - Akihiro Toyoda
- Department of Molecular and Tumor Pathology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuou, Chiba, Chiba, 260-8677, Japan
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Pandit R, Danilova IA. A case of atypical gastric carcinoma with osteoclast like giant cells. Mcgill J Med 2008; 11:152-5. [PMID: 19148314 PMCID: PMC2582658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Out of all the different types of neoplasms affecting the stomach, gastric carcinomas with Osteoclast-like Giant Cells (OGC) is one of the most uncommon. Although OGC are typically found in osseous neoplasms and tumors of the tendon sheath, few cases of extra-skeletal neoplasms with OGC have been documented. These typically involve organs such as the pancreas, gall-bladder, kidney, and breast. Even though the role of OGC in histogenesis of such tumors still remains unclear, their presence in extra-osseous neoplasms may indicate a certain level of immune reaction of the host towards the neoplastic transformation of normal tissue. We report a case of a 70-year-old Caucasian female hospitalized for evaluation of epigastric pain. Further examinations including endoscopy and biopsy of the stomach revealed gastric adenocarcinoma with OGC. This report also provides a brief insight into the possible immune reaction in such neoplasms.
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Affiliation(s)
- Rahul Pandit
- I.I. Mechnikov St. Petersburg State Medical Academy, Piskarevsky Prospect 47/23, Saint Petersburg, Russia.
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11
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The cellular composition of osteoclastlike giant cell-containing tumors of the pancreatobiliary tree. Am J Surg Pathol 2008; 32:335-7; author response 337. [PMID: 18223338 DOI: 10.1097/pas.0b013e3180342793] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Huang SC, Chang CL, Huang CH, Chang CCJ. Histiocytic sarcoma – A case with evenly distributed multinucleated giant cells. Pathol Res Pract 2007; 203:683-9. [PMID: 17673373 DOI: 10.1016/j.prp.2007.05.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2007] [Revised: 04/29/2007] [Accepted: 05/09/2007] [Indexed: 02/06/2023]
Abstract
Histiocytic sarcoma is an uncommon neoplasm of mature histiocytes with a poor clinical outcome. We report a case of a true histiocytic sarcoma with prominent and evenly distributed multinucleated giant cells that mimics a giant cell tumor of soft tissue. The tumor was located between the appendix, right ovary, and the terminal ileum with severe adhesion. The liver and spleen were not enlarged. Grossly, the tumor appeared grayish white, solid, and soft. Microscopically, polygonal mononuclear tumor cells aggregated to form somewhat epithelioid nests, which occasionally showed coagulative necrosis. Prominent and evenly scattered giant cells were present in all sections. In addition, tumor cell infiltration was noted in regional lymph nodes. The tumor cells were positive for lysozyme, CD68, CD163, and negative for T- and B-cell lineage markers, follicular dendritic cell, megakaryocytic, epithelial, muscular, and melanocytic markers, CD1a and CD30. This case posed great difficulty in clinical and pathological diagnoses. Gross pictures, microscopic findings, and extensive immunostains are important for the differential diagnosis.
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Affiliation(s)
- Shun-Chen Huang
- Department of Pathology, Chang Gung Memorial Hospital, Kaohsiung Medical Center, Chang Gung University College of Medicine, 123 Ta-Pei Rd, Niao-Sung Hasiang, Kaohsiung Hsien 833, Taiwan.
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13
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Abstract
Osteoclast-like giant cell tumors (OGCT) are rare abdominal tumors, which mainly occur in the pancreas. The neoplasms are composed of two distinct cell populations and frequently show an inhomogenous appearance with cystic structures. However, due to the rarity of these tumors, only very limited clinical data are available. Imaging features and sonographic appearance have hardly been characterized. Here we report on two cases of osteoclast-like giant cell tumors, one located within the pancreas, the other within the liver, in which OGCTs are extremely rare. Both patients were investigated by contrast sonography, which demonstrated a complex, partly cystic and strongly vascularized tumor within the head of the pancreas in the first patient and a large, hypervascularized neoplasm with calcifications within the liver in the second patient. The liver OGCT responded well to a combination of carboplatin, etoposide and paclitaxel. With a combination of surgical resection, radiofrequency ablation and chemotherapy, the patient’s survival is currently more than 15 mo, making him the longest survivor with an OGCT of the liver to date.
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Affiliation(s)
- Juergen Bauditz
- Fourth Department of Medicine, Charité University Hospital, Berlin, Germany
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