Multiple Myeloma Awareness: Bone marrow aspirate cytology of multiple myeloma, a type of bone marrow cancer of malignant plasma cells, associated with bone pain, bone fractures and anemia.
Fine needle aspirate cytology of metastatic melanoma, with large malignant cells. In the center of this photomicrograph is an "intranuclear inclusion" a feature often associated with melanomas.
Granulosa cells of the cumulus oophorus of a antral ovarian follicle. These cells are actively proliferating and thus show many mitosis.
High magnification micrograph of a tertiary ovarian follicle showing the extensive apoptosis or cell death of granulosa cells typical of follicular atresia.
Abnormal neutrophil in pleural fluid smear.Sepsis or septicaemia is a life-threatening illness. Presence of numerous bacteria in the blood, causes the body to respond in organ dysfunction.
Fungal infection of lung, histoplasmosis: Fine needle aspirate (FNA) of a pulmonary nodule showing multinucleated giant cells containing small bubble-like organisms of Histoplasma capsulatum.
Photomicrograph of specimen obtained by bronchoscopy, a type of endoscopy of lung, showing clusters of ciliated columnar epithelial cells. The cilia help sweep inhaled particulates out of the airway.
Breast biopsy photomicrograph of ductal carcinoma in situ (DCIS), nuclear grade 3 with prominent nuclear pleomorphism. Cancer cells are confined to the mammary ducts, without invasion.
Microscopic image of invasive squamous cell carcinoma of the vagina, related to human papilloma virus (HPV). HPV vaccination in teens can prevent HPV infections, cervical, vaginal and vulvar cancer.
The Papanicolaou (Pap) test ("smear", stain) is a screening method to detect pre-cancerous and cancerous lesions of the uterine cervix, including HPV, "dysplasia" (LSIL, HSIL, CIN) and carcinoma.
Pathology of polymyositis, with lymphocytic infiltration of skeletal muscle leading to pain, stiffness and weakness. Etiology is not fully known but may include autoimmune, viral and genetics.
Photomicrograph of an sinonasal inverted papilloma (SNIP), a benign tumor that may occur in the nasal cavity or paranasal sinuses.
Lymphoma awareness: photomicrograph of a mantle cell lymphoma, a type of non-Hodgkin B-cell lymphoma.
Lymph node biopsy showing an anaplastic lymphoma, a type of non Hodgkin lymphoma, a malignancy of lymphocytes.
Lymphoma of colon: photomicrograph of a diffuse large B-cell lymphoma (DLBCL) a type of non-Hodgkin lymphoma, with invasion of superficial colonic mucosa.
Malignant effusion cytology: Microscopic image of diffuse large B-cell lymphoma, a type of non Hodgkin lymphoma.