IMAGES Flashcards
(A) Superficial dorsal vein
(B) Deep dorsal vein
(C) Dorsal artery
(D) Corpus cavernosum
(E) Corpus spongiosum
Mycobacterium tuberculosis (Ziehl-Neelse stain)
Histoplasma capsulatum (mold form)
Pneumocystis jirovecii
Mucormycosis
Blastomyces dermatitidis
Cryptococcosis
Kayser-Fleischer Ring
Influenza
Dermatitis Herpetiformis
(grouped papulovesicular eruptions with escoriations and erythematous areas surrounding the lesions)
Esophageal Squamous Cell Carcinoma
Ganglion Cyst
Angiomyolipoma associated with Tuberous Sclerosis
Iron Deficiency Anemia
Mitral Valve Prolapse
Trichomonas Vaginalis
Digital Clubbing
Ebstein Anomaly
Total Anomalous Pulmonary Venous Return
Serous Adenoma Tumor of the Ovary
Mitral Stenosis
Basal Ganglia Hemorrhage due to Chronic Hypertension
Aortic Stenosis Caused by Chronic Rheumatic Valve Disease (Fused commissures)
Aortic Dissection (Widened Mediastinum)
Xanthoma (lipid laden foam cells with large cholesterol clefts)
Eruptive Xanthomas
Severe Atherosclerosis of the Aorta
Hyperplastic Arteriolosclerosis
Hyaline Arteriolosclerosis
Atherosclerotic Plaque in the Abdominal Aorta
Foam Cells
Blue toe syndrome
(usually caused by cholesterol embolization of an artery; typically after an invasive vascular procedure)
Atherosclerosis of Coronary Artery
Atheroma
Ovarian Fibroma
Leiomyosarcoma
GI Stromal Tumor
Cholangiocarcinoma
Syphilis
Calcium Oxalate Crystals
Dandy Walker Syndrome
Subdural Hematoma
Serous Ovarian Adenoma Tumor
Osteitis Fibrosis Cystica
Myocardial scar (post infarction) [most right side]
Myocardial Infarction (Granulation)
Mitral Stenosis
Microglia Cells
Mallory Weiss Tears
Left Ventricular Mural Thrombus
Haemophilus influenzae type B
Dense Subepithelial Humps on the GBM seen in PSGN
Contraction Band Necrosis
Bicornuate Uterus
Aortic Dissection (widened mediastinum)
Pulmonary Alveolar Edema
Myofibrillar disarray (seen in hypertrophic obstructive cardiomyopathy)
Left Ventricular Hypertrophy
Left ventricular enlargement (green)
Hypertrophic Cardiomyopathy
Hepatic congestion (nutmeg liver)
Heart Failure Cells
Electrical Alternans
Dilated Cardiomyopathy
Dilated Cardiomyopathy
Constrictive Pericarditis
Concentric Hypertrophic Cardiomyopathy
Cardiogenic Pulmonary Edema
Sertolli Cells
Second Degree Heart Block (Mobitz type I Block)
Pacinian Corpuscle
Valve Thrombosis in Recurrent Endocarditis of the Mitral Valve
Splinter (vertical) Hemorrhages in Endicarditis
Splenic Infarct
Roth Spots
(reflect small retinal hemorrhages due to retinal artery occlusion)
Pretibial Myxedema
Pneumothorax
Pericardial Tamponade
(red discoloration is evidence of a hemorrhage)
Pericardial Tamponade
(coagulation indicates previous hemorrhage)
Pericardial Effusion in Exudative Pericarditis
(globular “water bottle” shaped)
Pericardial Effusion
(anechoic pericardial effusion surrounding the heart [green overlay])
Pericardial Effusion
Osler nodes
(raised nodular lesions; appear dark brown indicating subcutaneous hemorrhage)
Mallory Weiss Tears
Keratin Pearl seen in Squamous Cell Carcinoma
Janeway Lesions
(caused by infective endocarditis)
Intraparenchymal Hemorrhage
Infective Endocarditis of the Aortic Valve
Infective Endocarditis
Hemophagocytes
Haemophilus Influenzae type B
Follicular Thyroid Cancer
Cowdry A Inclusion Bodies
Charcot Leyden Crystals
Bronchial Asthma
(mucoid exudate, goblet cell metaplasia, and smooth muscle hypertrophy)
Amanita Phalloides
(often called the death cap mushroom)
Temporal Arteritis
Takayasu Arteritis
(great vessel stenoses)
Subcutaneous Nodules in Rheumatic Fever
Polyarteritis nodosa (PAN)
Pericarditis
Left Atrial Myxoma
Giant Cell Arteritis
Fibrious Pericarditis in Uremia
(pericardium covered with linear fibrinous exudates consisting of fibrin strands and leukocytes)
Fibrinous Pericarditis
(periardium is covered by fibrinous exudate, which is assembled in long, gray-white, villus like strands)
External Carotid Artery Stenosis (Takayasu Arteritis)
Erythema Marginatum
(one of the major Jones criteria for the diagnosis of rheumatic fever)
Contrictive Pericarditis
(particularly in the region of the apex)
Cardiac Myxoma
Aschoff Body
Acute Pericarditis
Acute Pericarditis
Toe Gangrene
Telangiectasia
Strawberry tongue seen in Kawasaki disease
Renal Artery Microaneurysms seen in Polyarteritis Nodosa
Polyarteritis Nodosa
(transmural inflammation of the arterial wall with leucocytic infiltration and fibrinoid necrosis)
Perinuclear antineutrophil cytoplasmic antibodies (p-ANCA)
Muscle Involvement in Polyarteritis Nodosa
(transmural inflammatory infiltrate, fibrinoid necrosis)
Henoch-Schonlein Purpura
(palpable, nonblanching symmetrically-distributed purpura predominantly clustered over gravity-dependent areas, such as the ankles)
Granulomatosis with Polyangiitis
(round, solitary and nodular changes with centrally necrotic cavities)
Eosinophilic Granulomatosis with Polyangiitis
Cytoplasmic Antineutrophil Cytoplasmic Antibodies (c-ANCA)
Cryoglobulinemic Vasculitis
(multiple, partially confluent, round circular purpura on both legs and thighs)
Coronary Artery Aneurysm in Kawasaki Disease
(suggests an aneurysm of the LCA)
Foxglove (Digitalis)
Digitalis (Digoxin) effect
(sagging ST segment depression, also described as sagging ST segment depression seen in patients using digitalis)
Signet Ring Cells
Giardia Lamblia
Mast Cells
Diverticulitis
Bouchard and Heberden Nodes seen in Osteoarthritis
Gastroesophageal Reflux Disease (GERD)
Wolff-Parkinson-White (WPW) Syndrome
Thyroglossal Duct Cyst
Thyroglossal Duct Cyst
Keratoderma Blennorrhagica
Trichotillomania
Small Cell Lung Cancer
(dispersed “salt and pepper” chromatin)
Rough Endoplasmic Reticulum (RER)
Amyloidosis
(stain with Congo red yields apple green birefringence)
Strongyloides stercoralis
Paget Disease of the Breast
Fibroid (Leiomyoma)
Cirrhosis
Cirrhosis
(nodular, shrunken liver)
Spacing of Teeth in Acromegaly
Pituitary Gland Tumor
Pituitary Adenoma
Enlarged Forehead in Acromegaly
Acromegalic Facies
Wilson Disease
(accumulation of copper in hepatocytes)
Wilms Tumor
Rheumatoid Nodules
Pemphigus Vulgaris
(immunoglobulins present within the intercellular spaces of the epidermis)
Neisseria gonorrhoeae
Langerhans Cell Histiocytosis
Keratomalacia
(seen in vitamin A deficiency)
Hyperthyroidism in Graves Disease
Hyperthyroidism
Hashimoto Thyroiditis
Graves Disease
(increased vascularity)
Flat warts
(caused by infections with HPV)
Craniopharyngioma
(calcified cyst in the suprasellar region)
ALL
(numerous lymphoblasts)
Birbeck granules are seen within the cytoplasm of Langerhans cells (Langerhans histiocytosis)
Cryptosporidium parvum
Atrophic Cerebellar Vermis
Posterior Cerebral Artery
Thyroid Follicular Adenoma
(closely packed follicular cells (examples indicated by green overlay) appear normal with round, uniform nuclei and dense chromatin patterns)
Papillary Thyroid Carcinoma
Green overlay → psammoma bodies
White overlay → connective tissue core of papillae
Black outline → epithelial cancer cells covering the papillae
Psammoma Body
Medullary Thyroid Carcinoma
Green overlay → tumor cell nests
Black arrows → fibrous bands with prominent vascularity
Amyloid Deposits in Medullary Thyroid Carcinoma
Green overlay → amyloid deposits
Red → exemplary tumor cells
Solid Thyroid Nodule
(Solid circumscribed hypoechoic nodule is present in the left thyroid lobe. It does not contain microcalcifications. Color Doppler shows vascular flow).
Mixed Cystic and Solid Thyroid Nodule
A heterogeneous thyroid nodule (white overlay) has hypoechoic (red overlay) and slightly hyperechoic (green overlay) components. Microcalcifications (arrowheads) are present along the periphery of the hypoechoic component
Cold Thyroid Nodule
Large cold nodule (black circle) is visible within the left thyroid lobe as an area of decreased radiotracer uptake. Radiotracer uptake by the rest of the thyroid gland appears normal
Serous Papillary Cystadenoma of the Ovary with Psammoma Bodies
In addition to papillary tumor cells, there are two Psammoma bodies located in the lower left corner of the image (red overlay).
Follicular Thyroid Cancer
Nuclear Grooves and Orphan Annie Eyes in Papillary Thyroid Carcinoma
Medullary Thyroid Carcinoma
Very dense conglomeration of parafollicular cells arranged in nests and clusters (examples indicated by arrowheads). Amyloid is visible in the stroma as amorphous, pink, hyaline material (examples indicated by purple overlays)
Anaplastic Thyroid Carcinoma
(disorganized pleomorphic cells are visible while the normal histological follicular architecture of the thyroid gland is absent)
A → Gastric mucous neck cell, which produces gastric mucus and is typically found near the upper region of gastric gland. They can be identified by a pale, foamy cytoplasm and a basolateral nucleus
B → G cells
C → Chief cells can be identified by their basophilic cytoplasm and the presence of numerous cytoplasmic vesicles, which give the cytoplasm a granular appearance.
D → Vascular endothelial cell, which can be identified by its position lining a capillary
E → Perivascular fibroblast, marked by its presence within stromal connective tissue and dark, oblong nucleus
Uterine Fibroid (leiomyoma)
Panacinar Emphysema
Bullous Impetigo
A → Aortic Valve
B → Pulmonic Valve
C → Tricuspid Valve
D → Mitral Valve
Osteitis Fibrosa Cystica
Brown Tumors
Uterine Fibroid (Leiomyoma)
Pulmoary Edema
Panacinar Emphysema
Pancreatitis
(inflammation, necrosis, hemorrhage, and areas of focal fat necrosis around pancreatic tissue)
Duchenne Muscular Dystrophy (DMD)
(increased fatty connective tissue)
Chronic Bronchitis
(hypertrophy and hyperplasia of mucous-secreting gland)
Bullous Impetigo
Acute Pancreatitis
(CT imaging shows edematous pancreas with fat stranding)
“Punched out” lytic bone lesions
Most likely presenting in Multiple Myeloma
Salt and Pepper Skull
Rhabditiform larvae of Strongyloidiasis
Brown Tumors
Visceral Pleura
Secretory Rndometrium
Giardia lamblia
Musculocutaneous Nerve
(travels between biceps brachii and brachialis muscles)
Immune Thrombocytopenic Purpura
(increased numbers of megakaryocytes)
Actinic Keratosis
