Pathnologic @pathnologic
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Here are very large, immature myeloblasts with many nucleoli. A distincitve feature of these blasts is
Here are very large ... a linear red "Auer ... #Clinical #Path ... #BloodSmear #Blood ... Smear #Microscopy #Auer
Acute promyelocytic leukemia (blood). Typical morphologic features are bilobed ("butterfly") nuclei with dispersed chromatin, subtle to
promyelocytic leukemia (blood ... morphologic features are ... granules, and Auer ... leukemia #APL #APML #Pathology ... #Hematology #Clinical
A 37-year-old woman initially presented with pancytopenia and found to have leukopenia (2.1 × 103/μL) with
with occasional Auer ... her peripheral blood ... in neutrophils are ... #Clinical #Path ... #BloodSmear #Blood
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Excoriated papules with honey-colored crusting were present on the abdomen, back (Panel A), arms, and legs.
back (Panel A), arms ... #Clinical #Derm ... #Pathology #Scabies ... Microscopy #Rash #NEJM
African Trypanosomiasis - The examination was notable for the two erythematous lesions, each measuring 3 to
A peripheral-blood ... rhodesiense) (Panel B) #Clinical ... #Derm #Pathology ... TrypanosomaBrucei #NEJM
A – cabot ring, B – Howell-Jolly Body

What are Cabot’s rings?
- They are delicate threadlike inclusions
- They are delicate ... inclusions in the red blood ... the peripheral blood ... #Clinical #Pathology ... #Microscopy #BloodSmear
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
torso and upper arms ... #Clinical #Derm ... #Pathology #Tinea ... Microscopy #Spaghetti #NEJM
Cutaneous Actinomycosis - the left knee was noted to have edema, erythema, hyperpigmentation, hyperkeratinization, and several
Cutaneous Actinomycosis ... organism (Panel C) #Clinical ... #Derm #Pathology ... Rash #Cutaneous #Actinomycosis ... SplendoreHoeppli #Microscopy #NEJM
Schistocytes - The arrows point to schistocytes which are fragmented red blood cells. Also called schizocytes,
fragmented red blood ... a more generic term ... Clinical conditions ... #Clinical #Path ... #BloodSmear #Blood
Grouped Pustules on an Erythematous Base - On physical examination, grouped, coalescing pustules that had scalloped
seen on the left arm ... #Clinical #Derm ... #Pathology #Herpes ... #Arm #Pustules ... Smear #Microscopy #NEJM