A Rare Case of Extragonadal Mixed Germ Cell Tumor of the Sacrococcygeal Region with Mature Thymic Tissue in the Teratoma Component

A rare extragonadal mixed germ cell tumor of the sacrococcygeal area presenting with mature thymic tissue in the teratomatous component, a rare finding and the first reported case of such an association.

COVID-19 vaccination: Immune response in healthcare workers-A study with review of literature

Background

As the world has been going through a pandemic of coronavirus disease 2019 (COVID-19) for the past two years, a safe and effective vaccine was urgently needed. Vaccination against the disease was launched in India on January 16, 2021 with healthcare workers, frontline workers, and the elderly above 60 years being the first beneficiaries. Vaccines being used in India are Covishield and Covaxin.

Materials and Methods

Fifteen healthcare workers (HCWs) who were vaccinated with Covishield or Covaxin were included in the study, and T cell, B cell and antibody response of the HCWs were analyzed. Blood samples collected from every subject were sent for antibody analysis, hematological workup for cell counts, and flow cytometry was performed for various subsets of lymphocytes. Hematological variables in naïve HCWs (who never had any natural infection) and recovered HCWs (those recovered from natural infection) were compared.

Results

Antibody index among recovered HCWs was significantly higher than the naïve HCWs. All the leucocyte parameters showed a higher median value in the recovered group except total leucocyte count (TLC), T helper cell count (Th cell), T helper cell to T cytotoxic cell (Th cell: CTL) ratio and natural killer (NK) cell. But only Th: CTL ratio showed a statistically significant difference.

Conclusion

This study shows that the antibody index among individuals who had both vaccination and COVID-19 infection is significantly higher than those who just had vaccination. T helper cell to T cytotoxic cell ratio is lowered in the recovered HCWs as compared to the naïve HCWs and this finding is statistically significant.

Coexisting ovarian serous cystadenoma with fibroma: A very unusual combination

Surface epithelial neoplasms are the most common ovarian tumors, constituting around 60% of all ovarian malignancies. They are classified as benign, borderline, and malignant. Ovarian cystadenomas are common benign epithelial neoplasms which carry an excellent prognosis. Ovarian thecoma-fibroma groups are uncommon sex cord-stromal neoplasms, constituting 1.0%-4.0% of all ovarian tumors. Most of them are benign and often found in postmenopausal patients. Combination tumors in the ovary are known. The most common combination is mucinous cystadenoma which occurs in association with Brenner tumor, mature cystic teratoma, Sertoli-Leydig cell tumor, or even a serous cystadenoma. A combination of surface epithelial and thecoma-fibroma group is very rarely encountered. A case of one such combination of serous cystadenoma and fibroma of the ovary is being presented here in a postmenopausal woman.

Metaplastic breast carcinoma: Analysis of clinical and pathologic features, a five-year study

Background

Metaplastic carcinoma breast (MCB) is a rare tumor comprising of both glandular and non-glandular patterns with epithelial and or mesenchymal components. Due to their varied clinicomorphological features, diagnosis has been challenging.

Aim

To study the clinicopathological and histomorphology of cases of metaplastic carcinoma breast diagnosed in a tertiary care hospital along with literature review.

Materials and Methods

This is a retrospective study including data of 11 patients who were diagnosed with MCB either on trucut or mastectomy specimens conducted between January 2014 and December 2018.

Results

The study includes 11 patients, out of which 10 were diagnosed on mastectomy while one on trucut specimen. All the patients were women with the mean age of presentation being 43.8 years. The most common presentation was palpable breast lump with mean tumor size of 7.3 cm in greatest dimension. Skin involvement was seen in 36.3% of cases. While eight cases (72.7%) were classified as epithelial, three (27.2%) were classified as mixed. Amongst epithelial variety, in eight cases, squamous component was seen along with infiltrating ductal carcinoma (IDC) while one was pure squamous type. In mixed variety, one case showed spindled areas along with squamous areas and areas of IDC. Other two showed focal sarcomatous and cartilaginous areas in one and angiosarcomatous, bone and cartilage formation admixed with areas of IDC in other case.

Conclusion

MCB are rare breast tumors with aggressive course and are characterized by their large size and rapid growth rate. Recently, there has been an upsurge in the cases of MCB due to increase in recognition of this entity. It has to be distinguished from other tumors by the pathologists so as to guide proper treatment.

Unexpected diagnosis in not so usual clinical scenarios: Acute promyelocytic leukemia – A tertiary care hospital experience

Background: Acute promyelocytic leukemia (APL) is a distinct subtype of Acute myeloid leukemia (AML) with arrest in maturation of cells of myeloid series in bone marrow. PML-RARA fusion resulting from t(15;17) translocation forms the genetic basis of this haematological malignancy. Introduction of specific differentiating targeted therapy i.e. All-trans retinoic acid (ATRA) have remarkably improved the outcome of this previously dreaded AML. Aims and Objective: The current study presents five cases of Acute promyelocytic leukemia with unusual presentations followed by effective treatment to revert their adverse outcome. Materials and Methods: In this retrospective evaluation of Acute Myeloid leukemia cases, five cases were included from duration of November 2019 to November 2021. The diagnosis of AMLs was made according to EGIL 1998/WHO 2016 guidelines. Peripheral blood (PB) and bone marrow aspirate (BMA) were stained with Giemsa and cytochemistry included myeloperoxidase (MPO) and periodic acid-schiff (PAS). Results: Five color flowcytometric analyses were performed on BMA and PB samples. Chemotherapy was administered in the patients and follow-up was done. 03/05 patients faced mortality due to rapid disease progression. Conclusion: The fast track clinical course from presentation to the outcome of APL is dreadful for the treating clinician and the heamatopathologist. Cytomorphology and Cytochemistry are as important in rapid recognition of APL as Immunophenotyping and Cytogenetics for establishing accurate diagnosis.