Male ; Humans ; Prostate/pathology* ; Adenocarcinoma/pathology* ; Giant Cells/pathology*

Carcinoma/pathology* ; Giant Cells/pathology* ; Humans ; Osteoclasts/pathology* ; Pancreas/pathology* ; Pancreatic Neoplasms/surgery*

Cartilage and giant cell-related neoplastic lesions originating in the temporomandibular joint region have similar clinical, imaging and pathological manifestations, making the diagnosis of these disorders challenging to varying degrees. Diagnostic findings can influence treatment procedures and a definitive pathological diagnosis is important for the prognosis of these conditions. In this article, we discuss the pathological diagnosis and differentiation of four benign cartilage and giant cell related tumors and tumor-like lesions that occur in the temporomandibular joint, namely synovial chondromatosis, tumoral calcium pyrophosphate deposition disease, pigmented villonodular synovitis and chondroblastoma, taking into account their clinical features and histological manifestations, with a view to providing a basis for clinical management.
Humans ; Temporomandibular Joint/pathology* ; Chondromatosis, Synovial/pathology* ; Synovitis, Pigmented Villonodular/pathology* ; Giant Cells/pathology* ; Cartilage

PURPOSE: To report a case of immunoglobulin G4 (IgG4)-related ophthalmic disease associated with adult xanthogranulomatous disease. CASE SUMMARY: A 38-year-old male with a history of cholecystectomy visited our clinic for bilateral periorbital swelling. Histopathology of the orbital biopsy showed diffuse infiltration of foamy histiocytes with Touton giant cells and lymphoid follicles, with a diagnosis of adult-onset xanthogranuloma. After excisional biopsy, he was treated with azathioprine and prednisolone. Four years after treatment, he again visited the clinic due to bilateral, yellowish eyelid masses. Serological examinations were all nonspecific findings, except for elevation of IgG and IgG4 levels. Magnetic resonance imaging showed bilateral symmetric soft tissue enlargement with slightly heterogeneous T1/T2 isosignal intensity, with contrast enhancement at the superolateral aspect of extraconal spaces. Excisional biopsy and blepharoplasty were performed. Immunohistochemical sections showed that the IgG4+/IgG plasma cell ratio was 10–20% and the IgG4 plasma cell count was 22/high power field (HPF). His past sections of 2013 from the pathology department were again stained and showed that the IgG4+/IgG plasma cell ratio was 40–50% and the IgG4 plasma cell count was 59/HPF. Thus, he was definitely diagnosed with IgG4-related ophthalmic disease. CONCLUSIONS: If there is recurrent eyelid swelling, IgG4-related ophthalmic disease should be considered as a differential diagnosis. And the patient with adult xanthogranulomatous disease can be diagnosed with IgG4-related ophthalmic disease.
Adult ; Azathioprine ; Biopsy ; Blepharoplasty ; Cholecystectomy ; Diagnosis ; Diagnosis, Differential ; Eyelids ; Giant Cells ; Histiocytes ; Humans ; Immunoglobulin G ; Immunoglobulins ; Magnetic Resonance Imaging ; Male ; Orbit ; Pathology ; Plasma Cells ; Prednisolone

OBJECTIVETo study the clinicopathological characteristics of hepatic angiomyolipoma (HAML) and to evaluate the correlation between clinicopathological parameters and tumor subtypes.

METHODSRetrospective analysis of clinicopathological features was conducted in 182 cases of HAML.

RESULTSHAML patients were predominantly female (M:F=1:4) and most commonly presented with non-specific symptoms. The median age at diagnosis was 46 years, ranged from 17 to 77 years. Tumor diameter was ranged from 0.3 to 32.0 cm with an average of 5.0 cm. Majority of the tumor was epithelioid type (112/165, 67.9%). Extramedullary hematopoiesis, multinucleated giant cells, intranuclear inclusions, nucleolus, cellular atypia, invasive growth pattern, multiple masses, hyperpigmentation and purpura-like changes mostly occurred in the epithelioid type (P<0.05). Extramedullary hematopoiesis was commonly seen in HAML, the significance of which was still uncertain.

CONCLUSIONSMost of HAML are epithelioid type, characterized by a proliferation of predominantly epithelioid cells, in which extramedullary hematopoiesis is commonly seen. Some morphologic features that may predict malignant such as necrosis, mitotic figures, and tumor emboli are only found in the epithelioid HAML. Mitotic activity, tumor necrosis, tumor thrombus, giant cells, periportal invasion, multiple lesions and tumors size over 10 cm are closely related with tumor recurrence and metastasis.

Adolescent ; Adult ; Aged ; Angiomyolipoma ; diagnosis ; pathology ; Epithelioid Cells ; cytology ; Female ; Gastrointestinal Neoplasms ; diagnosis ; pathology ; Giant Cells ; pathology ; Humans ; Middle Aged ; Necrosis ; Neoplasm Recurrence, Local ; Prognosis ; Retrospective Studies ; Young Adult

OBJECTIVETo study the clinicopathologic features of tuberous sclerosis complex (TSC).

METHODSThe clinicopathologic data of the patients diagnosed as TSC with refractory epilepsy and resection of epileptic focus were retrospectively analyzed.

RESULTSFourteen cases were included, the mean age was (15.8±12.9) years, with a male predominance (male to female ratio=10:4). Frontal lobe was the most common (13/14) site of involvement. MRI showed multiple patchy long T1 and long T2 signals. CT images showed multiple subependymal high density calcified nodules in nine cases. Histology showed mild to severe disruption of the cortical lamination, cortical and subcortical tubers with giant cells and/or dysmorphic neurons. The giant cells showed strong immunoreactivity for vimentin and nestin, while the dysmorphic neurons partially expressed MAP2 and NF. Vimentin also stained strongly the "reactive" astrocytes. Thirteen cases had follow-up information: Engel class I in six cases, Engel class II in six cases, and Engel class III in one case.

CONCLUSIONSDiagnosis of TSC relies on combined pathologic, clinical and neuroradiological features. Immunohistochemical staining can be helpful. Resection of epileptic focus is an effective method to treat refractory epilepsy in TSC.

Adolescent ; Astrocytes ; chemistry ; pathology ; Child ; Drug Resistant Epilepsy ; surgery ; Epilepsy ; complications ; metabolism ; pathology ; Epilepsy, Frontal Lobe ; complications ; metabolism ; pathology ; Female ; Giant Cells ; chemistry ; pathology ; Humans ; Magnetic Resonance Imaging ; Male ; Nestin ; analysis ; Neurons ; metabolism ; pathology ; Retrospective Studies ; Tuberous Sclerosis ; complications ; metabolism ; pathology ; Vimentin ; analysis

OBJECTIVETo identify clinical and pathological features of giant cell myocarditis.

METHODSClinical presentation and follow-up data of three patients with giant cell myocarditis were collected.Gross, histopathological, immunohistological and ultrastructural findings of extransplantated hearts of the patients were documented.

RESULTSGrossly, multifocal involvement of the myocardium with variably dilated cardiac chambers were observed in all 3 cases.Histological examination revealed pronounced focal inflammatory infiltrates with multinucleated giant cells. Multinucleated giant cells were positive for CD68 and CD11b immunostains but were negative for CD163 in all cases. Transmission electron microscopy showed that the multinucleated giant cells derived from fusion of several macrophages with adherent lymphocytes and secretary cells. Clinically, the overall patient condition improved in all three cases after heart transplantation.One patient experienced acute cellular rejection (2R level) 4 months after transplantation, but recovered after treatment. One patient developed multinucleated giant cells observed in heart biopsy two weeks after transplantation.

CONCLUSIONSGiant-cell myocarditis is a rare disease of adult, and cardiac transplantation could improve the clinical outcome. Multinucleated giant cell in the myocarditis lesions were derived from macrophages, likely participating in the immune response. Endomyocardial biopsy is important for the diagnosis of giant cell myocarditis.

Acute Disease ; Adult ; Biopsy ; Giant Cells ; pathology ; ultrastructure ; Heart Transplantation ; Humans ; Lymphocytes ; pathology ; Macrophages ; pathology ; Microscopy, Electron, Transmission ; Myocarditis ; pathology ; Myocardium ; pathology ; ultrastructure

No abstract available.
Aged ; Antigens, CD/metabolism ; Antigens, Differentiation, Myelomonocytic/metabolism ; Cadherins/metabolism ; Cholangiocarcinoma/*pathology/radiography ; Female ; Giant Cells/metabolism/*pathology/radiography ; Humans ; Osteoclasts/pathology ; Tomography, X-Ray Computed

Vibrio vulnificus infection can lead to the rapid expansion of cellulitis or sepsis and can be lethal. Vibrio vulnificus is transmitted through seawater or ingestion of raw or undercooked shellfish. We experienced an uncommon case of death due to Vibrio sepsis, which was confirmed by autopsy. A 56-year-old man who was a sailor was found dead in a fishing boat. Autopsy was performed 3 days later. External examination revealed a few blisters and erythematous lesions on both legs. Internal examination revealed a fatty liver and edema of the legs. The skin lesions on the legs showed blisters that extended from the epidermis to the dermis, accompanied by massive acute inflammation in the dermis and subcutaneous tissue with multinuclear giant cells, as noted on the histologic examination. Vibrio vulnificus was isolated from postmortem blood and subcutaneous tissue of the leg. To the best of our knowledge, this is the first autopsy case in Korea in which Vibrio vulnificus was isolated from postmortem blood. Herein, we present a case of sepsis due to Vibrio vulnificus which was confirmed by autopsy, pathological findings, and postmortem microbiological culture.
Autopsy* ; Blister ; Cellulitis ; Dermis ; Eating ; Edema ; Epidermis ; Fatty Liver ; Giant Cells ; Humans ; Inflammation ; Korea ; Leg ; Middle Aged ; Military Personnel ; Pathology ; Seawater ; Sepsis* ; Shellfish ; Ships ; Skin ; Subcutaneous Tissue ; Vibrio ; Vibrio vulnificus*

Cell Proliferation ; Cytoplasm ; metabolism ; Female ; Giant Cells ; pathology ; Humans ; Hysterectomy ; Immunophenotyping ; Middle Aged ; Perivascular Epithelioid Cell Neoplasms ; diagnosis ; Salpingectomy ; Uterine Neoplasms ; diagnosis