13 results
Rouleaux formation is common in IgM gammopathy and may be particularly striking

Genevieve Crane, MD, PhD@evemariecrane

#Rouleaux #formation
Rouleaux formation ... #Rouleaux #formation ... gammopathy #MGUS #Clinical ... #Pathology #Hematology
Plasma cell leukemia with extensive rouleaux formation. Aggressive disease & patients typically younger than other forms
extensive rouleaux formation ... leukemia #rouleaux #formation ... #Clinical #Smear ... #Hematology #Pathology
Autoagglutination should also be distinguished from “Rouleaux formation” wherein normal blood tends to form stacks on
from “Rouleaux formation ... ” wherein normal ... dilution with normal ... #Clinical #Pathology ... #Hematology
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
lipid-dependent yeasts Clinical ... antifungals • Oral ... Tinea #Versicolor #Dermatology ... #SkinRash #Diagnosis ... #Management
Suggested algorithm for bone marrow biopsy and skeletal imaging in patients with monoclonal gammopathy of undetermined
protein <1.5 gm/dL, normal ... whom there are no clinical ... algorithm #diagnosis #management ... #hematology #multiplemyeloma
Indications for Serum Protein Electrophoresis (SPEP)
 • Suspected multiple myeloma, Waldenström's macroglobulinemia, primary amyloidosis, or related
fatigue, bone pain, abnormal ... ) • Rouleaux formations ... • Unexplained pathologic ... Electrophoresis #SPEP #Hematology
Megaloblastic neutrophils in bone marrow.

So-called "giant bands" and "giant metamyelocytes" (blue circles) are 1.5-2 times the
times the size of normal ... BoneMarrow #Smear #Hematology ... #Pathology #Clinical
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
organ damage Clinical ... significant fibrin clot formation ... - APTT < 1.5 x normal ... causes #treatment #management ... #hematology
Cryofibrinogenemia Summary

Cryofibrinogenemia Epidemiology:
 • 40-70 years with a modest female predominance

Cryofibrinogenemia:
 • The precipitation of a
cooled from the normal ... Cryofibrinogenemia Clinical ... Diagnosis: • + Clinical ... Biopsy: Typical pathologic ... #hematology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to 8 years Clinical ... and M panel Management ... levels are within normal ... hypogammaglobulinemia #immunology #hematology ... #diagnosis #management