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Rehman S, Venna P, Davis S, Gopagoni R, Uttam R, Farrukh AM, Salehi M. Primary gallbladder melanoma: A systematic review of literature. Ann Diagn Pathol 2024; 68:152244. [PMID: 38103326 DOI: 10.1016/j.anndiagpath.2023.152244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023]
Abstract
Primary gallbladder melanoma (PGM) is a rare malignancy with only sporadic cases reported in the English literature. We performed a systematic review of the cases published in the PubMed, Science Direct and Google Scholar databases with the aim of describing the reported clinicopathologic features of PGM. Thirty-six articles reporting on 39 patients were reviewed. There was a male predominance, with 23 (64 %) of 36 patients being males. The mean age at presentation was 55 ±16 years. Pain in the right upper quadrant was reported in 20/27 (74 %). The average size of the tumor was 3.5 × 1.9 × 1.4 cm. Gallbladder calculi were reported in 7/27 (26 %). A cholecystectomy was performed in 34/38 (89.5 %). Grossly, the tumor mostly (96.5 %) had polypoid appearances and on microscopic examination, the tumor were predominantly comprised of epithelioid cells 12/17 (70.6 %). Mitotic figures and prominent nucleoli were reportedly found in 8/8 (100 %) and 3/3 (100 %) respectively. Junctional melanocytic components were present in 13/21 (61.9 %). Tumor cells were reportedly immunoreactive for S-100 and HMB-45 in all tested cases. Metastasis were reported in 25/36 (69.4 %), with lymph nodes being the most common site (n = 8), followed by brain (n = 6) and liver (n = 4) for metastasis. At a mean follow-up period of 19 +/- 3 months, 16 (48.5 %) of the 33 patients with available survival data were alive and 17/33 (51.5 %) were dead of disease. There is a lack of unified criteria for the diagnosis of PGM, and future studies should aim to resolve this.
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Affiliation(s)
| | | | | | | | - Ritika Uttam
- JJM Medical College, Davangere, Karnataka, India
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2
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Adams SH, Luo E, Lozeau D, Wen X. A Case Report of Primary Malignant Melanoma of the Gallbladder with Multiple Metastases. Case Rep Pathol 2023; 2023:4847053. [PMID: 38115990 PMCID: PMC10730246 DOI: 10.1155/2023/4847053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/19/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023] Open
Abstract
Primary malignant melanoma of the gallbladder is an extremely rare tumor with approximately 39 cases described in the literature so far. However, since the first case was reported in 1907, it remains controversial whether gallbladder involvement in malignant melanoma is primary or metastatic. Here, we report a case of primary malignant melanoma of the gallbladder. A 52-year-old male presented to the emergency department with right upper quadrant abdominal pain and was found to have tumefactive sludge filling the majority of the gallbladder with possible gallbladder wall thickening on ultrasonography. A laparoscopic cholecystectomy was performed for presumed acute cholecystitis. Histopathologic examination of the gallbladder revealed malignant melanoma arising from the mucosa of the gallbladder. Further clinical investigation excluded other primary sites, supporting a diagnosis of primary malignant melanoma of the gallbladder.
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Affiliation(s)
- Steven H. Adams
- Stony Brook Medicine Department of Pathology, Stony Brook, New York, USA
| | - Erinn Luo
- Ward Melville High School, East Setauket, New York, USA
| | - Daniel Lozeau
- Stony Brook Medicine Department of Pathology, Stony Brook, New York, USA
- Stony Brook Medicine Department of Surgery, Stony Brook, New York, USA
| | - Xiaoyun Wen
- Stony Brook Medicine Department of Pathology, Stony Brook, New York, USA
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3
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Kumar K, Zaidi A, Husain N, Chandra A. Primary malignant melanoma of the gall bladder masquerading as xanthogranulomatous cholecystitis. BMJ Case Rep 2023; 16:e256093. [PMID: 37734863 PMCID: PMC10514650 DOI: 10.1136/bcr-2023-256093] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023] Open
Abstract
Malignant melanoma of the gall bladder is rare. Most cases are metastatic and primary gall bladder melanoma is even more rare. We report a case of primary malignant melanoma of the gall bladder which illustrates the diagnostic challenge posed by this condition. Histopathology and immunohistochemistry play a pivotal role in making a diagnosis and ruling out conditions which mimic it such as xanthogranulomatous cholecystitis and other relatively common epithelial malignancies. We tested for prognostic and predictive markers including BRAF and PD-L1 and immunohistochemistry showed positive staining for BRAF. The tumour cells expressed HMB-45 and were negative for cytokeratin and CD68, favouring a diagnosis of malignant melanoma and excluding the possibility of xanthogranulomatous cholecystitis and carcinoma. On follow-up at 3 months there was no evidence of recurrence of metastasis.
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Affiliation(s)
- Kaushlendra Kumar
- Pathology, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Ariba Zaidi
- Pathology, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nuzhat Husain
- Pathology, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Abhijit Chandra
- Surgical Gastroenterology, King George's Medical College, Chhatrapati Shahuji Maharaj Medical University, Lucknow, Uttar Pradesh, India
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4
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Jeon HJ, Kwon HJ, Kim SG, Hwang YJ. Malignant melanoma of the gallbladder: A case report and literature review. Ann Hepatobiliary Pancreat Surg 2021; 25:445-449. [PMID: 34402451 PMCID: PMC8382871 DOI: 10.14701/ahbps.2021.25.3.445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/17/2021] [Accepted: 02/01/2021] [Indexed: 11/17/2022] Open
Abstract
Metastatic melanoma of the gallbladder is extremely rare. It has a poor prognosis. Its optimal treatment remains unclear. Surgical resection is generally considered the mainstay of treatment. However, there are no standards to guide the choice between open surgery and laparoscopic surgery. Criteria for the extent of surgical dissection have not been established yet either. We report a patient diagnosed with gallbladder cancer who underwent extended cholecystectomy but had metastatic melanoma at the final biopsy. We reviewed the literature on the treatment of metastatic melanoma in the gallbladder and compared it with our case to determine a treatment strategy.
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Affiliation(s)
- Hyun-Jeong Jeon
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Hyung-Jun Kwon
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Sang-Geol Kim
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Yoon-Jin Hwang
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
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5
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Cocco G, Delli Pizzi A, Basilico R, Fabiani S, Taraschi AL, Pascucci L, Boccatonda A, Catalano O, Schiavone C. Imaging of gallbladder metastasis. Insights Imaging 2021; 12:100. [PMID: 34259932 PMCID: PMC8280258 DOI: 10.1186/s13244-021-01049-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/13/2021] [Indexed: 12/29/2022] Open
Abstract
Gallbladder metastasis (GM) is a rare condition, often with a late diagnosis or detected upon autopsy. There is no extensive literature on the imaging diagnosis of GM. Here we present a comprehensive review of the literature with the aim of helping to interpret the clinical findings and imaging features of such patients. Few studies on GM are reported in literature. GM by melanoma accounts for about 55.6% of cases. The remaining cases origin from breast cancer (13.6%), hepatocellular carcinoma (13.6%), renal cell carcinoma (6.8%), lung cancer (4.5%), lymphoma (3.5%) and gastric cancer (2.4%). The most common clinical presentation of GM is abdominal pain from cholecystitis due to obstruction of the cystic duct. The main ultrasound (US), computed tomography (CT) and magnetic resonance imaging (MRI) findings that clinicians and radiologists should consider in their everyday medical activity were discussed. The diagnosis of GM was often achieved through a combination of more than one imaging modality. In more than 90% of cases, the diagnosis of GM is often late and combined with other organs involvement in the terminal stage of the malignancy. The knowledge of the clinical features and different imaging techniques through careful evaluation of the gallbladder can help to achieve early diagnosis and avoid misdiagnosis or false negative results.
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Affiliation(s)
- Giulio Cocco
- Unit of Ultrasound in Internal Medicine, Department of Medicine and Science of Aging, "G.D'Annunzio" University, Chiety, Italy.
| | - Andrea Delli Pizzi
- Department of Neurosciences, Imaging and Clinical Studies, "G.D'Annunzio" University, Chiety, Italy
| | - Raffaella Basilico
- Department of Neurosciences, Imaging and Clinical Studies, "G.D'Annunzio" University, Chiety, Italy
| | - Stefano Fabiani
- Unit of Ultrasound in Internal Medicine, Department of Medicine and Science of Aging, "G.D'Annunzio" University, Chiety, Italy
| | - Alessio Lino Taraschi
- Department of Neurosciences, Imaging and Clinical Studies, "G.D'Annunzio" University, Chiety, Italy
| | - Luca Pascucci
- Department of Neurosciences, Imaging and Clinical Studies, "G.D'Annunzio" University, Chiety, Italy
| | - Andrea Boccatonda
- Unit of Ultrasound in Internal Medicine, Department of Medicine and Science of Aging, "G.D'Annunzio" University, Chiety, Italy
| | | | - Cosima Schiavone
- Unit of Ultrasound in Internal Medicine, Department of Medicine and Science of Aging, "G.D'Annunzio" University, Chiety, Italy
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6
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L Chandrananth M, Cullinan M. A rare cause of hemobilia: Metastatic melanoma of the gallbladder. INTERNATIONAL JOURNAL OF HEPATOBILIARY AND PANCREATIC DISEASES 2020. [DOI: 10.5348/100091z04mc2020ci] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Introduction: Gallbladder melanoma is an extremely rare entity, even more so in living patients, as many remain asymptomatic. Patients usually present with symptoms resembling acute cholecystitis, however here we present a case of metastatic melanoma of the gallbladder presenting with hemobilia.
Case Report: An 82-year-old lady with a history of skin cancer excisions, including melanoma, many years ago, presented with anemia of unknown origin. A computed tomography (CT) scan was performed, demonstrating a gallbladder mass and hemobilia. She successfully underwent open cholecystectomy, partial liver resection, and lymph node dissection, which on histopathology, demonstrated metastatic melanoma. She remains disease free eight months later.
Conclusion: Although melanoma of the gallbladder is rare, in patients with a past history of melanoma, a high index of suspicion should be maintained if there are concerning signs, such as anemia, without a clear cause. With early identification and surgical intervention, a patient’s survival rate can be optimized.
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Affiliation(s)
- Meera L Chandrananth
- MD, Biomed, Surgical Registrar, Department of General Surgery, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Mark Cullinan
- MBBS, FRACS, Hepato-Pancreato-Biliary and Upper Gastrointestinal Surgeon, General Surgery and Gastroenterology Clinical Institute, Epworth Health-Care, Melbourne, Victoria, Australia; Department of Surgery, Monash University, Melbourne, Victoria, Australia; Department of Surgery, Monash Medical Centre, Melbourne, Victoria, Australia
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7
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Hakim S, Orosey M, Edhi A, Amin M, Cappell MS. Complete response for 36 months after BRAF and MEK inhibitor therapy for locally advanced gallbladder melanoma. MINERVA GASTROENTERO 2019; 65:243-246. [PMID: 31115206 DOI: 10.23736/s1121-421x.19.02584-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Seifeldin Hakim
- Division of Gastroenterology and Hepatology, Department of Medicine, William Beaumont Hospital at Royal Oak, Royal Oak, MI, USA
| | - Molly Orosey
- Division of Gastroenterology and Hepatology, Department of Medicine, William Beaumont Hospital at Royal Oak, Royal Oak, MI, USA
| | - Ahmed Edhi
- Division of Gastroenterology and Hepatology, Department of Medicine, William Beaumont Hospital at Royal Oak, Royal Oak, MI, USA
| | - Mitual Amin
- Department of Pathology, William Beaumont Hospital at Royal Oak, Royal Oak, MI, USA.,Department of Pathology, Oakland University William Beaumont School of Medicine, Royal Oak, MI, USA
| | - Mitchell S Cappell
- Division of Gastroenterology and Hepatology, Department of Medicine, William Beaumont Hospital at Royal Oak, Royal Oak, MI, USA - .,Division of Gastroenterology and Hepatology, Department of Medicine, Oakland University William Beaumont School of Medicine, Royal Oak, MI, USA
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8
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Asymptomatic malignant melanoma of the gallbladder with multiple brain metastases diagnosed with endoscopic ultrasound-guided fine-needle aspiration cytology. Clin J Gastroenterol 2019; 12:490-494. [DOI: 10.1007/s12328-019-00957-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 02/27/2019] [Indexed: 11/25/2022]
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9
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Muszynska C, Lundgren L, Andersson R, Søland T, Lindell G, Sandström P, Andersson B. Incidental metastases and lymphoma of the gallbladder - an analysis of ten rare cases identified from a large national database. Scand J Gastroenterol 2019; 54:350-358. [PMID: 31035806 DOI: 10.1080/00365521.2019.1588363] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Background: The aim was to identify and characterize rare malignancies of the gallbladder, incidentally found at cholecystectomy, and describe the diagnostic work-up, treatment and outcome. Methods: Data from cholecystectomies during 2007-2014 registered in the Swedish Register for Gallstone Surgery (GallRiks) were analyzed for incidental cancer. For completion of the pathology report, data were linked with the Swedish Registry for Cancer in the liver and biliary tract (SweLiv) and/or the Swedish Cancer Registry. Results: From 36,355 patients that underwent cholecystectomy on a benign indication 215 cases of incidental gallbladder cancer (IGBC) were identified. In total seven patients with metastases to the gallbladder from different primary tumors (breast cancer, malignant melanoma, gastric cancer, renal cell carcinoma, upper gastrointestinal cancer, colon cancer and pancreatic cancer) and three patients with lymphoma involvement of the gallbladder were found. Most patients were female with no difference between the groups (8/10 versus 171/215). The median age for the metastasis and lymphoma (MOL) group was equal to the IGBC group, 70 (64-72) years versus 70 (63-78) years. All patients in the MOL group underwent preoperative imaging with ultrasound or computed tomography, on which no metastases were identified. In only two patients a tumor was seen by the surgeon during the perioperative examination of the gallbladder. The median survival was 5.8 months for MOL patients and 23 months for IGBC patients. Conclusion: Metastases and lymphoma of the gallbladder are rare. Traditional imaging methods prior to cholecystectomy may miss gallbladder malignancies. A liberal approach of histopathological analysis of the gallbladder should be applied.
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Affiliation(s)
- Carolina Muszynska
- a Department of Surgery , Skåne University Hospital , Lund , Sweden.,b Department of Clinical Sciences , Lund University , Lund , Sweden
| | - Linda Lundgren
- c Department of Surgery , County Council of Östergötland , Linköping , Sweden.,d Department of Clinical and Experimental Medicine, Faculty of Health Sciences , Linköping University , Linköping , Sweden
| | - Roland Andersson
- a Department of Surgery , Skåne University Hospital , Lund , Sweden.,b Department of Clinical Sciences , Lund University , Lund , Sweden
| | - Torunn Søland
- e Department of Pathology , Østfold Hospital , Norway
| | - Gert Lindell
- a Department of Surgery , Skåne University Hospital , Lund , Sweden.,b Department of Clinical Sciences , Lund University , Lund , Sweden
| | - Per Sandström
- c Department of Surgery , County Council of Östergötland , Linköping , Sweden.,d Department of Clinical and Experimental Medicine, Faculty of Health Sciences , Linköping University , Linköping , Sweden
| | - Bodil Andersson
- a Department of Surgery , Skåne University Hospital , Lund , Sweden.,b Department of Clinical Sciences , Lund University , Lund , Sweden
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10
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Yu Z, Quiroz E, Shen Y, Jaiyesimi IA. Pathological complete response induced by neoadjuvant treatment using BRAF and MEK inhibitors in a patient with unresectable BRAF V600E-mutant malignant melanoma of the gallbladder. Onco Targets Ther 2018; 11:8723-8728. [PMID: 30584330 PMCID: PMC6287667 DOI: 10.2147/ott.s177111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Historically, patients with locally advanced or metastatic melanoma have an extremely poor prognosis. In recent years, major breakthroughs in cutaneous melanoma treatment have led to remarkable improvements in patient outcomes. However, there are limited published data on the efficacy of these novel therapies in the treatment of mucosal melanoma due to rarity of the disease. We report a case of successful neoadjuvant targeted therapy with BRAF and MEK inhibitors followed by radical surgical excision in a patient with advanced malignant melanoma of the gallbladder.
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Affiliation(s)
- Zhou Yu
- Department of Hematology and Oncology, William Beaumont Hospital, Oakland University - William Beaumont School of Medicine, Royal Oak, MI, USA,
| | - Elisa Quiroz
- Department of Internal Medicine, William Beaumont Hospital, Oakland University - William Beaumont School of Medicine, Royal Oak, MI, USA
| | - Yulei Shen
- Department of Pathology and Laboratory Medicine, William Beaumont Hospital, Oakland University - William Beaumont School of Medicine, Royal Oak, MI, USA
| | - Ishmael A Jaiyesimi
- Department of Hematology and Oncology, William Beaumont Hospital, Oakland University - William Beaumont School of Medicine, Royal Oak, MI, USA,
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11
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Adrian S, Clemens C, Elisabeth SW, Sylvia S. Clinicohistopathological Characteristics of Malignant Melanoma in the Gall Bladder: A Case Report and Review of the Literature. Case Rep Pathol 2018; 2018:6471923. [PMID: 29750128 PMCID: PMC5884404 DOI: 10.1155/2018/6471923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 01/09/2018] [Accepted: 01/16/2018] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Primary gall bladder melanoma is a rare and controversial entity. So far, only 36 cases are documented in the literature. Metastatic melanoma targeting the gall bladder, however, has been reported to occur in about 15-20% of melanoma patients and is much more common. METHODS Based on the case of a 58-year-old woman presenting with multiple melanoma nodules in the gall bladder, we searched in the available literature in PubMed for articles describing a "primary melanoma of the gallbladder" regardless of language used. RESULTS We detected 33 papers that described 36 cases of primary gall bladder melanoma between 1907 and 2017. From different criteria distinguishing primary and secondary gall bladder melanoma, generally, the following were accepted: (1) exclusion of previous primary melanoma, (2) absence of synchronous involvement of other sites, (3) unicity of the lesion, (4) polypoid or papillary shape of the lesion, and (5) presence of junctional melanocitary component. Review of the 36 published cases revealed that only about one-fourth of them fulfilled all the five criteria. CONCLUSION Primary gall bladder melanoma is even rarer than described in the literature, and the question whether this entity really exists remains open.
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Affiliation(s)
- Schmidt Adrian
- Department of Internal Medicine, Division of Medical Oncology and Hematology, Triemli Hospital, Birmensdorferstrasse 497, 8063 Zurich, Switzerland
| | - Caspar Clemens
- Department of Internal Medicine, Division of Medical Oncology and Hematology, Cantonal Hospital Baden, Im Ergel 1, 5404 Baden, Switzerland
| | - Schmidt-Weiss Elisabeth
- Centre for Hematology and Oncology, Clinic of Medical Oncology, University Hospital Zurich, Rämistrasse 100, 8091 Zürich, Switzerland
| | - Stadlmann Sylvia
- Division of Pathology, Cantonal Hospital Baden, Im Ergel 1, 5404 Baden, Switzerland
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12
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Wang JK, Su F, Ma WJ, Hu HJ, Yang Q, Liu F, Li QS, Li FY. Primary malignant melanoma of the gallbladder with multiple metastases: A case report. Medicine (Baltimore) 2017; 96:e8793. [PMID: 29145341 PMCID: PMC5704886 DOI: 10.1097/md.0000000000008793] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
RATIONAL Primary malignant melanoma of the gallbladder is an extremely rare tumor, with fewer than 40 cases reported in the literature worldwide. The majority of patients presented as a solitary lesion in the gallbladder. To our knowledge, only one case of primary malignant melanoma of the gallbladder with multiple metastases has been reported, which involved the stomach, duodenum, pancreas, jejunum and a mesenteric lymph node. PATIENT CONCERNS We report a case of primary malignant melanoma of the gallbladder with metastases to the duodenal bulb, right adrenal and a celiac lymph node. DIAGNOSES Primary malignant melanoma of the gallbladder with multiple metastases. INTERVENTIONS Gastrojejunostomy, cholecystectomy, and biopsy of the three metastatic lesions were performed. Histopathologic examination revealed melanin pigments were within the tumor cells of the four lesions, however, junctional activity was noted only in the gallbladder, supporting that the gallbladder was the primary site. No pigmented lesions were detected on the skin or eyes. The postoperative recovery was uneventful, and subsequently, chemotherapy with paclitaxel and carboplatin was administered. OUTCOMES The patient survived for 16 months due to tumor. progression. LESSONS The current case was unique due to the adrenal involvement. For patients with multiple metastases of malignant melanoma, gallbladder origin should be considered in the differential diagnosis from cutaneous origin.
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Affiliation(s)
| | - Fei Su
- Department of Pathology, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | | | | | | | - Fei Liu
- Department of Biliary Surgery
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Abstract
Malignant melanoma is one of the few malignancies that are well known for unusual behavior. Primary malignant melanoma usually originates from squamous epithelium of skin, mucous membranes, retina, and uvea. Although melanoma can metastasize to any part of the body, including biliary tract, primary malignant melanoma of bile ducts is an extremely rare entity. We present a 52-year-old man who presented with 5-month epigastric pain and 15-pound weight loss, with 1-week duration of jaundice, nausea/vomiting, pale stools, and dark urine, blood work suggested cholestatic jaundice. Imaging revealed a large perihilar/peripancreatic mass involving the portal vein and hepatic artery, and intrahepatic biliary dilation. Biliary brushings revealed neoplastic cells strongly suggestive of malignant melanoma.
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14
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15
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Ballester Sánchez R, de Unamuno Bustos B, Navarro Mira M, Botella Estrada R. Actualización en melanoma mucoso. ACTAS DERMO-SIFILIOGRAFICAS 2015; 106:96-103. [DOI: 10.1016/j.ad.2014.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 03/17/2014] [Accepted: 04/21/2014] [Indexed: 02/01/2023] Open
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16
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Ballester Sánchez R, de Unamuno Bustos B, Navarro Mira M, Botella Estrada R. Mucosal Melanoma: An Update. ACTAS DERMO-SIFILIOGRAFICAS 2015. [DOI: 10.1016/j.adengl.2014.12.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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17
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Primary malignant melanoma of the gallbladder: a case report and review of the literature. Case Rep Surg 2012; 2012:693547. [PMID: 23094182 PMCID: PMC3475298 DOI: 10.1155/2012/693547] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Accepted: 09/25/2012] [Indexed: 11/18/2022] Open
Abstract
Malignant melanoma is characterized by the ability of diffuse metastases. Since the first report of an isolated malignant melanoma case of the gallbladder, it is already controversial whether isolated cases are metastatic or primary tumors. A 49-year-old woman appealed to the emergency unit because of abdominal pain. Ultrasonography revealed increased thickness of the gallbladder wall and a lesion with surrounding fluid sized 12 mm without acoustic shadow, which arose from the gallbladder wall and was consistent with a polyp. Histopathologic evaluation of the surgical specimen after laparoscopic cholecystectomy revealed malign epithelial tumor consisting of atypical cells with large eosinophilic cytoplasm and dense melanin pigment within the cytoplasm of the tumor cells. As no other focus was identified as a result of the evaluation, the patient was diagnosed with primary malignant melanoma of the gallbladder. In this paper, we aimed to define our treatment modality for a case with isolated malignant melanoma of the gallbladder.
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19
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Khan ZS, Huth J, Kapur P, Huerta S. Indications and recommended approach for surgical intervention of metastatic disease to the gallbladder. World J Surg Oncol 2010; 8:80. [PMID: 20828420 PMCID: PMC2944133 DOI: 10.1186/1477-7819-8-80] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2010] [Accepted: 09/10/2010] [Indexed: 12/26/2022] Open
Abstract
Metastatic disease to the gallbladder is unusual. The most common malignancy metastatic to the gallbladder is melanoma, followed by renal cell carcinoma (RCC) and breast cancer. Due to the unusual nature of the disease, there are no trials available for review. Thus, the management for these patients has been based on institutional experience and review of case series. The indications for surgical intervention for melanoma are metastatic disease discrete to the gallbladder and biliary symptoms, which are uncommon for melanoma, but might occur due to cystic duct obstruction culminating in cholecystitis. Laparoscopic cholecystectomy without a lymphadenectomy is emerging as the preferred approach for this metastatic deposit. The vast majority of patients with metastases to the gallbladder from RCC carry a good prognosis and a laparoscopic cholecystectomy should be considered. Patients with metastases to the gallbladder from the breast classically present with biliary symptoms and commonly undergo a laparoscopic cholecystectomy, which invariably demonstrates a deposit in the gallbladder from lobular breast cancer. In the present report, we review the indications for surgical intervention from various malignancies metastatic to the gallbladder and the current consensus for the laparoscopic approach from the diverse metastatic deposits to the gallbladder.
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Affiliation(s)
- Zarrish S Khan
- Department of Surgery, UT Southwestern Medical Center, Harry Hines Blvd, Dallas, 75219, USA
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20
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A Case of Malignant Melanoma With Cardiac and Gallbladder Metastases Detected by FDG PET-CT. Clin Nucl Med 2009; 34:948-9. [DOI: 10.1097/rlu.0b013e3181bed02c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gastrointestinal melanoma or clear cell sarcoma? Molecular evaluation of 7 cases previously diagnosed as malignant melanoma. Am J Surg Pathol 2008; 32:858-66. [PMID: 18408594 DOI: 10.1097/pas.0b013e31815b8288] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Clear cell sarcoma (CCS) is a rare tumor classically associated with the tendons and aponeuroses of distal extremities of young adults. CCS and malignant melanoma (MM) share immunohistochemical profiles and ultrastructural features, but classic CCS has characteristic morphology with low mitotic activity and minimal pleomorphism. Occasional cases show pleomorphism, high mitotic index, and/or melanin pigmentation, making CCS indistinguishable from MM based on morphology. However, CCS is genetically distinct owing to its consistent association with a t(12;22)(q13;q12) chromosomal translocation, leading to the formation of the EWS/ATF1 fusion transcript. This translocation has never been documented in cutaneous melanoma, and thus is regarded as specific for CCS. Recent evidence suggests that primary "malignant melanomas" in unusual anatomic sites, most notably the gastrointestinal (GI) tract, may be CCS. This is supported by 11 cases of primary GI CCS with the t(12;22) translocation. We used reverse-transcription polymerase chain reaction and fluorescence in situ hybridization to examine whether a proportion of cases diagnosed as MM of the GI tract in patients without a history of cutaneous MM actually represent primary GI CCS. In total, we examined 7 cases: Four with no prior history of MM, 2 with histories of cutaneous MM, and 1 with an anal MM. All 4 cases for which there was no history of cutaneous/mucosal MM harbored the EWS/ATF1 fusion transcript. We report the largest series of GI CCS and have shown that molecular studies may be warranted in cases that otherwise seem to represent MM of unusual primary locations.
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22
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Malignant melanoma of the gallbladder: a report of two cases and review of the literature. J Gastrointest Surg 2008; 12:1123-6. [PMID: 18060465 DOI: 10.1007/s11605-007-0432-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2007] [Accepted: 11/09/2007] [Indexed: 01/31/2023]
Abstract
Melanoma metastatic to the gallbladder is rare. When present, it is often part of a widespread complex of metastases. Primary gallbladder melanomas are also extremely rare and can sometimes be difficult to distinguish from metastatic lesions. The optimal treatment for malignant melanoma of the gallbladder remains unclear, and prognosis is generally poor. We present here two cases of patients with metastatic lesions to the gallbladder. One patient presented with symptomatic cholelithiasis and was found incidentally to have a metastasis. Another patient had known a metastasis, but underwent curative resection of the only site of disease. We review the published literature for gallbladder melanoma, both primary and metastatic to determine the role of surgery in this disease.
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Tuveri M, Tuveri A. Isolated metastatic melanoma to the gallbladder: is laparoscopic cholecystectomy indicated?: a case report and review of the literature. Surg Laparosc Endosc Percutan Tech 2007; 17:141-4. [PMID: 17450099 DOI: 10.1097/sle.0b013e31803c766a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Metastatic involvement of the gallbladder in melanoma is rare, but constitutes the most common metastatic lesion involving this organ. The surgical management seems to be indicated for patients with isolated and resectable gallbladder metastases to avoid symptoms or tumor complications. We report on a case of a young woman with an isolated metastatic gallbladder melanoma who presented with symptoms of acute cholecystitis. The patient underwent laparoscopic cholecystectomy (LC) and lymphadenectomy of the hepatoduodenal ligament. Histology was characteristic for metastatic malignant melanoma. Nodes were negative for metastases. We emphasize the appropriateness of a laparoscopic approach, once ruled out a widespread metastatic disease. It can be done with a remarkably low rate of complications. Gentle manipulation, avoidance of perforation, and use of a retrieval bag for the removal of the gallbladder should be practiced to help minimize the chance of mechanical exfoliation or implantation of malignant cells during LC. In isolated metastatic localization, LC may be curative and provide adequate palliation of symptoms with a short convalescence and a fast recovery.
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Affiliation(s)
- Massimiliano Tuveri
- Dipartimento di Chirurgia Generale e Vascolare, Clinica Sant'Elena, Quartu Sant'Elena, Cagliari, Italia.
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24
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Abstract
Primary malignant melanoma originating in the digestive tract is extremely rare. A case of primary malignant melanoma in the descending colon is described. The tumor was an elevated mass with surface necrosis. Histologically, tumor cells were arranged with compact nests surrounded by fibrous stroma. The tumor cells had pleomorphic nuclei and rich cytoplasm. In some areas, cells of signet ring-like appearance were found. An immunohistochemical examination showed that most of the tumor cells were positive for S-100 protein, HMB-45, melan-A, vimentin and CD38. Ultrastructural examination confirmed some premelanosomes. EWS-ATF-1 fusion transcript, which is usually detected in clear cell sarcoma, was not demonstrated on reverse transcriptase-polymerase chain reaction. Because there was no evidence of either cutaneous or ocular primary melanoma, the tumor was thus diagnosed as primary colonic malignant melanoma. The patient has remained free of recurrent disease for 3 years after a surgical resection. Colonic malignant melanoma must be differentiated from other intestinal tumor, and the possibility of metastasis from another more common primary site must be ruled out.
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Affiliation(s)
- Daisuke Mori
- Department of Pathology and Biodefense, Faculty of Medicine, Saga University, Saga, Japan.
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25
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Safioleas M, Agapitos E, Kontzoglou K, Stamatakos M, Safioleas P, Mouzopoulos G, Kostakis A. Primary melanoma of the gallbladder: Does it exist? Report of a case and review of the literature. World J Gastroenterol 2006; 12:4259-61. [PMID: 16830389 PMCID: PMC4087388 DOI: 10.3748/wjg.v12.i26.4259] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
With the occasion of a case of malignant melanoma of the gallbladder, which appeared to be primary, we have reviewed the literature and the result of this research was that primary melanoma of the gallbladder remains a questionable medical entity. Only few cases of both primary and metastatic gallbladder melanoma have been reported so far, and the only agreement is that surgery is the mainstay treatment. The role of adjuvant chemotherapy, hormonotherapy or immunotherapy for both primary and metastatic disease remains undefined.
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Affiliation(s)
- Michail Safioleas
- Department of Propedeutic Surgery, School of Medicine, Athens University, Laiko Hospital, Greece.
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26
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Bejarano González N, García Moforte N, Darnell Martín A, Dinarès Fernández MC, Laporte Roselló E, Navarro Soto S. Primary malignant melanoma of the common bile duct: a case report and literature review. GASTROENTEROLOGIA Y HEPATOLOGIA 2005; 28:382-4. [PMID: 16137472 DOI: 10.1157/13077759] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Primary malignant melanoma of the common bile duct is rare. Only seven cases have been described in the literature. Diagnosis is based on failure to find another primary site, histological examination with electron microscopy, and immunohistochemical tests. We describe a new case of primary malignant melanoma of the biliary tract and present a review of previous reports.
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Affiliation(s)
- N Bejarano González
- Department of General Surgery, Hospital de Sabadell, Corporació Parc Taulí, Sabadell, Barcelona, Spain
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27
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Crippa S, Bovo G, Romano F, Mussi C, Uggeri F. Melanoma metastatic to the gallbladder and small bowel: report of a case and review of the literature. Melanoma Res 2005; 14:427-30. [PMID: 15457102 DOI: 10.1097/00008390-200410000-00016] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
From post-mortem case records, the small bowel is the most frequent site of metastatic melanoma in the gastrointestinal (GI) tract, with gallbladder involvement occurring in 15% of cases. However, few cases have been documented in living patients and, when found, are associated with a poor prognosis. We report a case of a Caucasian man with metastatic gallbladder and small bowel melanoma from an unknown primary. He presented with diffuse abdominal pain, vomiting and progressive asthenia; subsequently, intestinal obstruction occurred. He had no past history of malignant melanoma and the primary lesion was not found. The multiple lesions, together with the absence of mucosal involvement in both the gallbladder and small bowel, led us to believe that the lesions were metastatic deposits from a probably regressed primary melanoma. It should be emphasized that surgical resection for melanoma metastatic to the GI tract is recommended for palliative reasons and can be performed safely. The clinical presentation, diagnosis, treatment and prognosis of previously reported cases of melanoma metastatic to the gallbladder and small bowel are reviewed. The differences between primary and secondary GI tract melanomas are also discussed.
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Affiliation(s)
- Stefano Crippa
- Department of Surgery, University of Milan-Bicocca, San Gerardo Hospital, Via Donizetti, 106, Monza 20052 (MI), Italy.
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28
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Swiatoniowski G, Mazur G, Hałoń A, Rozumek G, Dabrowska M, Zawisza R, Prudlak E. Malignant melanoma with gall bladder metastasis as a second neoplasm in the course of prostate cancer. Pathol Oncol Res 2004; 10:243-5. [PMID: 15619649 DOI: 10.1007/bf03033770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2004] [Accepted: 11/17/2004] [Indexed: 10/20/2022]
Abstract
Malignant melanoma is a neoplasm with an often unpredictable course and metastases potentially affecting all organs of the human body. Metastases into the gall bladder are rare. The role of hormonal background in the development and progression of malignant melanoma has not been established. The authors present a case of a 63-year-old man who had initially undergone long-term hormone therapy for the treatment of prostate cancer, and later presented with melanoma metastatic to the gall bladder.
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29
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Guida M, Cramarossa A, Gentile A, Benvestito S, De Fazio M, Sanbiasi D, Crucitta E, De Lena M. Metastatic malignant melanoma of the gallbladder: a case report and review of the literature. Melanoma Res 2002; 12:619-25. [PMID: 12459652 DOI: 10.1097/00008390-200212000-00012] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Both primary and metastatic melanoma of the gallbladder are rare. Involvement of the gallbladder occurs in about 15% of all gastrointestinal metastatic localizations in post-mortem case records. It is often difficult to differentiate primary from metastatic lesions on the basis of clinical, radiological and histopathological features. Melanoma involving the biliary tree seldom causes relevant symptoms during life, and this is why cases reported in the literature are few and those documented in living patients even fewer. We report a case of a young woman with a metastatic gallbladder melanoma who presented with a long and vague clinical history of symptoms that mimicked chronic cholecystitis with epigastric right hypochondrial pain without instrumental evidence of disease until the development of acute cholecystitis. We report this case to emphasize the need for awareness of the possibility of gallbladder involvement in the melanoma patient and to underline the necessity of meticulous investigation of unclear lesions of the gallbladder and biliary tree in patients with a past history of malignant melanoma. The clinical presentation, diagnosis, histopathology, prognosis and treatment of primary and metastatic melanoma of the gallbladder are also discussed and reviewed.
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Affiliation(s)
- M Guida
- Division of Medical Oncology, Istituto Oncologico, Bari, Italy.
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30
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Abstract
An 80-year-old-female patient had a pigmented lesion on: the hard palate, the soft palate, the alveolar mucosa and the vestibular mucosa of the maxillary gingiva. Pigmented macules and patches had been persistent and asymptomatic for many years (Fig. 1). The lesion exhibited irregularities of pigmentation, border and surface contour. About 1 year later the patient had noticed an extension of the pigmented macules and plaques; there was also the appearance of nodules of the maxillary gingiva accompanied by swelling. Loosening of teeth as a result of extensive destruction of bone was further noted (Fig. 2). The histological examination showed a downward streaming in the dermis of the tumor cells and a disintegration and ulceration of the epidermis (Fig. 3). An increased number of large round or polygonal cells resembling atypical epithelioid cells were found on the submucosa. The atypical cells had enlarged, pleomorphic nuclei with prominent and sometimes multiple nucleoli. Mitoses were observed at various tissue levels (Fig. 4). Abundant pigmented melanin was present in the tumor cells (Fig. 5). Many cells had fine, dusty melanin particles. The tumor cells showed great variations in size. Immunohistochemical staining, with S100 protein and HMB45 antibodies, stained many of the spindleshaped cells, indicating that they were melanocytic cells. An inflammatory infiltrate of lymphocytes was seen in a band beneath the invading tumor cells.
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Affiliation(s)
- Maria Rita Bongiorno
- Department of Dermatology, University of Palermo, Via del Vespro 131, 90123 Palermo, Italy.
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31
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Abstract
OBJECTIVE This article focuses on the clinical, diagnostic, and therapeutic aspects of malignant melanoma metastases to the gastrointestinal (GI) tract. The subject of primary malignant melanoma arising from the GI tract is also discussed. Malignant melanoma is the most common tumor metastatic to the GI tract, and can present with fairly non-specific symptoms. METHODS Up to 60% of patients with melanoma are found to have metastases at autopsy. Frequent GI sites of invasion include the small bowel (50%), colon (31.3%), and anorectum (25%), seen in our institution over the past 9 yr. Malignant melanoma is a frequent source of metastases to the gastrointestinal (GI) tract. RESULTS Herein we report the case of a melanoma masquerading as a rectal polyp. We have also discovered 16 cases of melanoma metastases to the GI tract, at our institution, over the past 9 yr. The most frequent sites included small bowel (50%), colon (31.3%), and anorectum (25%). CONCLUSION Despite innocuous gastrointestinal symptoms, metastatic melanoma should be a diagnostic consideration in any patient with a history of melanoma.
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Affiliation(s)
- D Blecker
- Department of Medicine, University of Pennsylvania Health System, Philadelphia, USA
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33
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Abstract
Primary carcinoma of the gallbladder is a rare neoplasm that is frequently difficult to diagnose preoperatively. The obstacles to diagnosis include vague symptoms and the relative inaccessibility of the gallbladder and cystic duct to biopsy. Cytological descriptions of gallbladder carcinoma are sparse and are largely confined to malignant cells identified in aspirated bile. Examination of bile is a fairly insensitive technique for diagnosing carcinoma, partially due to the degradative effect of biliary salts on cellular morphology. In the following, we report the findings of three cases of primary carcinoma of the gallbladder examined by fine-needle aspiration cytology.
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Affiliation(s)
- L G Dodd
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
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34
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Abstract
Although cases of both primary and metastatic malignant melanoma of the gall bladder have been reported, and the occurrence of metastasis to the gall bladder is well recognized, it is still far from clear as to whether a primary melanoma of the gall bladder is a definite entity in itself. Criteria which have been used to make the diagnosis of primary melanoma include the size and shape of the tumor, the presence of junctional activity within the tumor and the lack of another obvious primary site. We present a case of definite metastatic melanoma of the gall bladder however which demonstrates all these primary melanoma features. This must call into doubt the validity of these criteria as diagnostic aids, and ultimately the question remains--does primary melanoma of the gall bladder actually exist?
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Affiliation(s)
- C M Higgins
- Department of Anatomical Pathology, Princess Alexandra Hospital, Brisbane, Qld
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35
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Washburn WK, Noda S, Lewis WD, Jenkins RL. Primary malignant melanoma of the biliary tract. LIVER TRANSPLANTATION AND SURGERY : OFFICIAL PUBLICATION OF THE AMERICAN ASSOCIATION FOR THE STUDY OF LIVER DISEASES AND THE INTERNATIONAL LIVER TRANSPLANTATION SOCIETY 1995; 1:103-6. [PMID: 9346549 DOI: 10.1002/lt.500010206] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Primary malignant melanoma of the biliary tract is an obscure entity, with only four previously reported cases. We report two cases involving the common bile duct. A 43-year-old male who underwent a right hepatectomy and excision of the extrahepatic biliary tree for a lesion at the bifurcation of the common bile duct. He remains alive and well 11 months after resection. The second patient is a 45 year old male with obstructive jaundice due to an ampullary lesion. Pancreaticoduodenectomy was performed with no signs of metastatic disease. He is 6 years following resection without evidence of disease. This is an unusual cause of obstructive jaundice and a definitive search for a possible extra-biliary primary should be pursued. In appropriately selected patients without evidence of metastatic disease, resection can potentially afford long-term survival if these lesions are true primary lesions and not metastatic from an undefined primary. However, given the high metastatic potential of melanoma it is unclear whether resection of these lesions results in cure or just effective long-term palliation.
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Affiliation(s)
- W K Washburn
- Division of Hepatobiliary Surgery and Liver Transplantation, New England Deaconess Hospital, Boston, MA 02215, USA
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36
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Hatanaka N, Miyata M, Kamiike W, Okumura K, Hashimoto T, Yamaguchi T, Kishino Y, Sakurai M, Matsuda H. Radical resection of primary malignant melanoma of the gallbladder with multiple metastases: report of a case. Surg Today 1993; 23:1023-6. [PMID: 8292857 DOI: 10.1007/bf00308983] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We present herein an usual case of primary malignant melanoma of the gallbladder in a 51-year-old man in whom an exploratory laparotomy for melena revealed six malignant melanoma lesions located in the gallbladder, main pancreatic duct, stomach, duodenum, jejunum, and a mesenteric lymph node. Total pancreatectomy was performed and histologically, junctional activity was seen only in the gallbladder, suggesting that this was the primary site. No melanotic lesions were found on the skin or eyes. The metastases to the main pancreatic duct and gastrointestinal tract appeared likely to have occurred as a consequence of the mucosal dissemination of the tumor cells shed into the bile. The post-operative course was uneventful and combined chemotherapy was administered for 16 months. No new metastatic lesions were found until 21 months postoperatively, when metastases were detected in the brain and thoracic spinal cord. These metastatic tumors were removed surgically, but the patient died from cerebral disturbance 26 months after the initial operation. Thus, we consider that aggressive surgical therapy was effective for extending the survival time and improving the quality of life of this patient.
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Affiliation(s)
- N Hatanaka
- First Department of Surgery, Osaka University Medical School, Japan
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