
Bone Marrow Biopsy Cells: A Diagnostic Challenge
A diagnostic challenge in bone marrow biopsy microscopy for a patient with multiple myeloma. Identify the cells indicated by arrows in the specimen.
Blood and bone marrow morphology, clinical cases and diagnostic algorithms. Most of the library is in Russian; the English section is growing.
Most of our material is written in Russian — that is the working language of the community. A few pieces exist in English; the rest of the library is one click away and the photographs need no translation.

A diagnostic challenge in bone marrow biopsy microscopy for a patient with multiple myeloma. Identify the cells indicated by arrows in the specimen.

Morphology of reactive lymphocytes in a blood smear from a 4-year-old child with acute cytomegalovirus infection: microscopy, digital gallery, and DIFF scattergram.

Microscopic crystallization (fern phenomenon) upon drying amniotic fluid. A diagnostic method for ruptured fetal membranes.

A clinical case of severe anemia in a 27-year-old patient: marked poikilocytosis with predominant dacryocytes, hypochromia, and polychromatophilia in the blood smear.

A clinical case of anaplastic thyroid carcinoma with rhabdoid cells in aspirate: cytology and immunohistochemistry in differential diagnosis.

Cervical cytology smears from a 68-year-old woman with squamous cell carcinoma. Papanicolaou stain, showing complexes of atypical epithelial cells.

Criteria for differential diagnosis of band neutrophils and monocytes in peripheral blood: features of nuclear structure, chromatin, and cytoplasm.

Clinical case of blasts found in the blood smear of a 14-year-old adolescent with leukocytosis, anemia, and thrombocytopenia. Morphological features of blast cells.

A clinical case of microfilariae detection in a dog's gum fine-needle biopsy. PCR confirmed a mixed invasion of Dirofilaria repens and D. immitis.

A clinical case of melanoma metastasizing to the bone marrow: cytological features of aspirate, black trephine biopsy, and histological examination.

Microscopic image of feline cytauxzoonosis (Cytauxzoon felis): mature schizont in a mononuclear phagocyte of the bone marrow and merozoite release.

Comparative morphology of trematodes: Clonorchis sinensis, Opisthorchis viverrini, Fasciola hepatica, and Paragonimus westermani on microscopic slides.