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Article
Open AccessImproved artificial intelligence discrimination of minor histological populations by supplementing with color-adjusted images
Despite the dedicated research of artificial intelligence (AI) for pathological images, the construction of AI applicable to histopathological tissue subtypes, is limited by insufficient dataset collection owi...
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Article
Open AccessPerivascular epithelioid cell tumors (PEComas) of the bone and soft tissue: a Japanese Musculoskeletal Oncology Group (JMOG) multi-institutional study
Perivascular epithelioid cell tumors (PEComas) of the bone and soft tissues are rare mesenchymal neoplasms, some of which are malignant. However, their clinical and pathological characteristics remain unclear....
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Article
Open AccessFollicular cholangitis mimicking a common bile duct cancer: a case report
Follicular cholangitis (FC) is a benign bile duct disease that was first reported 2003. Pathologically, it is characterized by lymphoplasmacytic infiltration with multiple lymphoid follicle formations under th...
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Article
Histology and cytokine levels in hepatic injury accompanying a case of non-severe COVID-19
The pathogenesis of liver dysfunction that complicates coronavirus disease 2019 (COVID-19) remains unclear, especially in mild to moderate severity cases. In this case, a novel coronavirus infection was detect...
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Article
Open AccessHeterotopic ossification in lymph node metastasis after rectal cancer resection: a case report and literature review
Heterotopic ossification (HO) is the formation of osseous tissue outside the skeleton. HO in malignant tumors of the digestive tract is extremely rare, as is ossification in metastatic lesions from HO-negative...
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Article
Open AccessA typical case of resected pancreatic hamartoma: a case report and literature review on imaging and pathology
Pancreatic hamartomas are rare entities and difficult to diagnose before resection. We report a case of resected pancreatic hamartoma and literature review of typical characteristics of the lesion.
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Article
Open AccessCase report: IgG4-related mass-forming thyroiditis accompanied by regional lymphadenopathy
It has been recently accepted that IgG4-related thyroiditis is comparable to the Hashimoto and Riedel thyroiditis and Graves disease which are rich in IgG4-secreting plasma cells. Many physicians believe that ...
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Article
Open AccessRuptured hepatic metastases of cutaneous melanoma during treatment with vemurafenib: an autopsy case report
The spontaneous rupture of hepatic metastases is rare compared to that of primary hepatic tumors. In addition, vemurafenib, a selective inhibitor of the mutant BRAF protein or gene product, has been reported t...
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Article
Open AccessAdenomyoepithelial adenosis associated with breast cancer: a case report and review of the literature
Adenomyoepithelial adenosis of the breast is an extremely rare type of adenosis. We herein present the case of a 35-year-old woman, who presented with a small painless hard lump and elastic soft induration of ...
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Article
Metastatic myxofibrosarcoma of the spermatic cord responding to mesna, adriamycin, ifosfamide, and dacarbazine combination therapy
Myxofibrosarcoma is common in the extremities of elderly people and is characterized by a high frequency of local recurrence. We report herein a case of a 72-year-old male who presented with a 5-year history o...
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Article
Solitary plasmacytoma of the spine associated with neurological complications
We report eight patients with a solitary plasmacytoma of the spine associated with neurological complications. The patients included five men and three women with an average age at presentation of 59 years (ra...
