Papillary cystadenocarcinoma of the parotid gland: a rare sub-variant of salivary gland adenocarcinoma

Papillary cystadenocarcinoma of the salivary gland is a very rare malignant neoplasm accounting for only 2% of all salivary gland lesions. In 1991 it was first included as a separate entity in the World Health Organization (WHO) classification of salivary gland tumors and in 2017 WHO Classification, the tumor was clubbed as a sub-variant of adenocarcinoma, not otherwise specified. It most commonly occurs in the major salivary glands. Herein we report a case of salivary papillary cystadenocarcinoma in a 54-year-old female, who presented with rapid enlargement of the right parotid swelling. Based on radiology and fine-needle aspiration cytology, a working diagnosis of the malignant tumor involving the superficial lobe of the right parotid gland was made. In view of the malignant nature of the swelling, superficial parotidectomy was done. The histopathology and immunohistochemistry of the mass confirmed the diagnosis of papillary cystadenocarcinoma of the right parotid. With the revised 2017 WHO classification of salivary gland tumors, it is important to report all rare subtypes in order to understand their biology and behavior.

Giant cell reparative granuloma of the nasal cavity: a rare site of presentation with review of literature

Giant cell reparative granuloma (GCRG) was first described in the 1950s. It is an uncommon and benign reactive tumor that is believed to occur after trauma or inflammation. It most commonly occurs in the maxilla and mandible and rarely affects the nasal cavity. It is often seen in children and during the second to third decades of life, predominantly seen among females. Histopathologically, GCRG shows many osteoclast-like multinucleated giant cells scattered in a background of mononuclear stromal cells and spindle-shaped fibroblasts also associated with areas of hemorrhage. The distinction between GCRG and giant cell tumors (GCT)is crucial since both have a similar clinical and histological presentation, but both have different management. GCTs have malignant potential, may metastasize, and have a high rate of recurrence. Surgical excision is the mainstay therapy of GCRG to ensure a low rate of recurrence. Here we discuss two cases GCRG, both presenting as nasal mass.

Metanephric Adenoma with cystic changes- An uncommon presentation of a rare tumor in a young adult

Metanephric adenoma (MA) is a rare benign neoplasm of the kidney that is usually asymptomatic and incidentally diagnosed. MA usually present as a solid mass; however, a cystic presentation has been reported. The main differential diagnosis of MA is the epithelial predominant Wilms tumor (e-WT) and the solid variant of papillary renal cell carcinoma (pRCC). The presence of the BRAF gene mutation has recently been reported in 85% of MA, and less than 10% of cases of MA do not express this specific gene mutation. Herein we report a 22-year-old man who presented with back pain and abdominal discomfort with a renal mass on the computed tomographic scan. The diagnosis of metanephric adenoma was confirmed histopathologically. In our case, the tumor presented as a solid and cystic mass hence mimicking a papillary renal cell carcinoma. The VE1 protein, which correlates with BRAF gene mutation, did not show any significant expression. We want to highlight that MA can present as a cystic lesion that should be taken into account to avoid unnecessary radical nephrectomy. Also, we demonstrated that a subset of MA might not harbor the BRAF gene and, they are classified as the BRAF wild type MA.

Association between Clinical Malaria and Blood Lipids in North Eastern India.

Background: Changes in lipid profile are seen in many patients infected with malaria parasite. The malaria parasite causes hepatocellular damage and disturbs lipid handling by the liver. Inside hepatocytes and erythrocytes the parasite replicates rapidly scavenging cholesterol and lipids required for its growth and metabolism from the host. It also requires host lipids for detoxification of free heme to form the malarial pigment, haemozoin. The important question is whether these changes are characteristic for malaria infection or are they simply part of an acute phase reaction? This study analyzes the correlation between malaria infection and derangements in lipid profiles. Materials and Methods: This study comprised of 29 confirmed malaria cases, and 29 subjects in apparent good health, without the infection were included as control cases. Malaria cases were confirmed using rapid antibody-based diagnostic card tests that detect histidine-rich protein 2 (HRP2) or lactate dehydrogenase antigens in finger-prick blood samples followed by microscopic confirmation of malaria parasite. A 12 -hour fasting lipid profile was estimated by enzymatic method on day 2. Data obtained were statistically analyzed using Student’s t Test, assuming p<0.05 as significant. All issues related to ethics were taken care of during the whole course of study. Results: As compared with control subjects, patients with malaria showed low HDL (16.48±6.490 mg/dL versus 41.38±15.110 mg/dL), low LDL (70.45±22.720 mg/dL versus 104.46±27.353 mg/dL), low cholesterol (103.52±35.331 mg/dL versus 169.45±34.040 mg/dL) and elevated triglycerides (214.24±109.365 mg/dL versus 131.15±30.813 mg/dL). The observations show a statistically significant difference in HDL, LDL, cholesterol and triglycerides between malaria patients and control subjects (p<0.05). Conclusion: These results show a characteristic pattern of derangements of lipid profile in malaria. Further studies are required to understand the diagnostic, prognostic and therapeutic implications of these derangements.

Leukemoid reaction as a “prognostic marker” in breast cancer and review of literature.

Neutrophilic leukocytosis above 50 × 10/l not involving the bone marrow, defines a leukemoid reaction (LR). Although it simulates leukemia, most of the causes are inflammatory and benign. LR has been found to be associated with malignancy which is postulated to be caused by granulocyte colony-stimulating factor (G-CSF) secreted by the tumor cells. A 50 years old woman, presented with high grade infiltrating ductal carcinoma of breast and leukocytosis (60 ×10/ cumm). After completion of MRM, the condition of neutrophilic leukocytosis subsided. After three months, total leukocyte count rose and local relapse of tumor was found. Following that wide excision was done,and the condition of leukocytosis subsided again. In this case the leukemoid reaction was a paraneoplastic reaction which can be view as a potential for prognostic marker.