gold usmle: Diseases Flashcards

1
Q

Addison’s Disease

A

Primary adrenocortical deficiency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Addisonian Anemia

A

Pernicious anemia (antibodies to intrinsic factor or parietal cells → ↓IF → ↓Vit B12 → megaloblastic anemia)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Albright’s Syndrome

A

Polyostotic fibrous dysplasia, precocious puberty, café au lait spots, short stature, young girls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Alport’s Syndrome

A

Hereditary nephritis with nerve deafness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Alzheimer’s

A

Progressive dementia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Argyll-Robertson Pupil

A

Loss of light reflex constriction (contralateral or bilateral)

  1. “Prostitute’s Eye” – accommodates but does not react
  2. Pathognomonic for 3°Syphilis
  3. Lesion pretectal region of superior colliculus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Arnold-Chiari Malformation

A

Cerebellar tonsil herniation through foramen magnum = see thoracolumbar meningomyelocele

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Barrett’s

A

Columnar metaplasia of lower esophagus (↑ risk of adenocarcinoma)- constant gastroesophageal reflux

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Bartter’s Syndrome

A

Bartter’s Syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Becker’s Muscular Dystrophy

A

Similar to Duchenne, but less severe (mutation, not a deficiency, in dystrophin protein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Bell’s Palsy

A

CNVII palsy (entire face; recall that UMN lesion only affects lower face)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Berger’s Disease

A

IgA nephropathy causing hematuria in kids, usually following infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Bernard-Soulier Disease

A

Defect in platelet adhesion (abnormally large platelets & lack of platelet-surface glycoprotein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Berry Aneurysm

A

Circle of Willis (subarachnoid bleed) Anterior Communicating artery
18. Often associated with ADPKD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Bowen’s Disease

A

Carcinoma in situ on shaft of penis (↑ risk of visceral ca) [compare w/ Queyrat]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Brill-Zinsser Disease

A

Recurrences of rickettsia prowazaki up to 50 yrs later

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Briquet’s Syndrome

A

Somatization disorder

22. Psychological: multiple physical complaints without physical pathology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Broca’s Aphasia

A

Motor Aphasia (area 44 & 45) intact comprehension

Inferior Posterior Frontal Lobe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Brown-Sequard

A

Hemisection of cord (contralateral loss of pain & temp / ipsilateral loss of fine touch, UMN / ipsi loss of consc. Proprio)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Bruton’s Disease

A

X-linked agammaglobinemia (↓ B cells)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Budd-Chiari

A

Post-hepatic venous thrombosis = ab pain; hepatomegaly; ascites; portal HTN; liver failure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Buerger’s Disease

A

Acute inflammation of medium and small arteries of extremities → painful ischemia → gangrene
28. Seen almost exclusively in young and middle-aged men who smoke.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Burkitt’s Lymphoma

A

Small noncleaved cell lymphoma EBV

  1. 8:14 translocation
  2. Seen commonly in jaws, abdomen, retroperitoneal soft tissues
  3. Starry sky appearance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Caisson Disease

A

Nitric gas emboli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Chagas’ Disease

A

Trypansoma infection - cardiomegaly with apical atrophy, achlasia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Chediak-Higashi Disease

A

(AR) Phagocyte Deficiency = defect in microtubule polymerization
36. Neutropenia, albinism, cranial & peripheral neuropathy & repeated infections w/ strep & staph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Conn’s Syndrome

A

Primary Aldosteronism: HTN; retain Na+ & H2O; hypokalemia (causing alkalosis); ↓ renin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Cori’s Disease

A

Type III Glycogenosis – Glycogen storage disease (debranching enz: amylo 1,6 glucosidase def. ↑ Glycogen)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Creutzfeldt-Jakob

A

Prion infection → cerebellar & cerebral degeneration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Crigler-Najjar Syndrome

A

Congenital hyperbilirubinemia (unconjugated)

  1. Glucuronyl transferase deficiency. Can progress to Kernicterus
  2. Less severe form will respond to Phenobarbital therapy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Crohn’s

A

IBD; ileocecum, transmural, skip lesions, cobblestones, lymphocytic infiltrate, granulomas

  1. (contrast to UC: limited to colon, mucosa & submucosa, crypt abscesses, pseudopolyps, ↑ colon cancer risk)
  2. Clinically: ab pain & diarrhea; fever; malabsorption; fistulae b/t intestinal loops & abd structures
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Curling’s Ulcer

A

Acute gastric ulcer associated with severe burns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Cushing’s

A

Disease: Hypercorticism 2° to ↑ ACTH from pituitary (basophilic adenoma)

  1. Syndrome: hypercorticism of all other causes (1° adrenal or ectopic)
    • moon face; buffalo hump; purple striae; hirsutism; HTN; hyperglycemia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Cushing’s Ulcer

A

Acute gastric ulcer associated with CNS trauma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

de Quervain’s Thyroiditis

A

Self-limiting focal destruction (subacute thyroiditis)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

DiGeorge’s Syndrome

A

Failure of 3rd & 4th pharyngeal pouches formation: Thymus & Parathyroid

  1. Thymic hypoplasia → T-cell deficiency
  2. Hypoparathyroidism ! Tetany
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Down’s Syndrome

A

Trisomy 21 or translocation – Simian Crease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Dressler’s Syndrome

A

Post-MI Fibrinous Pericarditis autoimmune

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Dubin-Johnson Syndrome

A
Congenital hyperbilirubinemia (conjugated) = bilirubin transposrt is defective not conjugation
58. Striking brown-to-black discoloration of the liver
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Duchenne Muscular Dystrophy

A

Deficiency of dystrophin protein → MD X-linked recessive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Edwards’ Syndrome

A
  1. Trisomy 18

61. Rocker-bottom feet, low ears, small lower jaw, heart disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Ehler’s-Danlos

A

Defective collagen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Eisenmenger’s Complex

A

Late cyanotic shunt (R→L) pulmonary HTN & RVH 2° to long-standing VSD, ASD, or PDA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Erb-Duchenne Palsy

A

Trauma to superior trunk of brachial plexus Waiter’s Tip

C5-C6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Ewing Sarcoma

A

Malignant undifferentiated round cell tumor of bone in boys

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Eyrthroplasia of Queyrat

A

Carcinoma in situ on glans penis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Fanconi’s Syndrome

A

Impaired proximal tubular reabsorption 2° to lead poisoning or Tetracycline (glycosuria,
hyperphosphaturia, aminoaciduria, systemic acidosis)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Felty’s Syndrome

A

Rheumatoid arthritis, neutropenia, splenomegaly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Gardner’s Syndrome

A

AD = adenomatous polyps of colon, osteomas & soft tissue tumors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Gaucher’s Disease

A

Lysosomal Storage Disease glucocerebrosidase deficiency – glucocerebroside accumulation
71. Hepatosplenomegaly, femoral head & long bone erosion, anemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Gilbert’s Syndrome

A

Benign congenital hyperbilirubinemia (unconjugated) = ↓d glucuronyl transferase activity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Glanzmann’s Thrombasthenia

A

Defective glycoproteins on platelets = deficient platelet aggregation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

Goodpasture’s

A

Autoimmune: ab’s to glomerular & alveolar basement membranes. Seen in men in their 20’s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

Grave’s Disease

A

Autoimmune hyperthyroidism (TSI): IgG Ab reactive w/ TSH receptors. Low TSH & TRH – High T3 / T4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

Guillain-Barre

A

Polyneuritis following viral infection/ autoimmune (ascending muscle weakness & paralysis; usually self-limiting)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

Hamman-Rich Syndrome

A

Idiopathic pulmonary fibrosis. Can see honey comb lung.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

Hand-Schuller-Christian

A

Chronic progressive histiocytosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

Hashimoto’s Thyroiditis

A

Autoimmune hypothyroidism. May have transient hyperthyroidism. Low T3 /T4 & High TSH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

Hashitoxicosis

A

Initial hyperthyroidism in Hashimoto’s Thyroiditis that precedes hypothyroidism

60
Q

Henoch-Schonlein purpura

A

Hypersensivity vasculitis = allergic purpura. Lesions have the same age.

  1. Hemmorhagic urticaria (with fever, arthralgias, GI & renal involvement)
  2. Associated with upper respiratory infections
61
Q

Hirschprung’s Disease

A

Aganglionic megacolon

62
Q

Horner’s Syndrome

A

Ptosis, miosis, anhidrosis (lesion of cervical sympathetic nerves often 2° to a Pancoast tumor)

63
Q

Huntington’s (Chromosome 4)

A

AD: Progressive degeneration of caudate nucleus, putamen (striatum) & frontal cortex ↓ GABA

64
Q

Jacksonian Seizures

A

Epileptic events originating in the primary motor cortex (area 4)

65
Q

Job’s Syndrome

A

Immune deficiency: neutrophils fail to respond to chemotactic stimuli

  1. Defective neutrophilic chemotactic response = repeated infections
  2. Commonly seen in light-skinned, red-haired girls
  3. ↑’d IgE levels
66
Q

Kaposi Sarcoma

A

Malignant vascular tumor (HHV8 in homosexual men)

67
Q

Kartagener’s Syndrome

A

Immotile cilia 2° to defective dynein arms infection, situs inversus, sterility

68
Q

Kawasaki Disease

A

Mucocutaneous lymph node syndrome in kids (acute necrotizing vasculitis of lips, oral mucosa)

69
Q

Klinefelter’s Syndrome

A

47, XXY: Long arms, Sterile, Hypogonadism

70
Q

Kluver-Bucy

A

Bilateral lesions of amygdala (hypersexuality; oral behavior)

71
Q

Krukenberg Tumor

A

Adenocarcinoma with signet-ring cells (typically originating from the stomach) metastases to
95. the ovaries

72
Q

Laennec’s Cirrhosis

A

Alcoholic cirrhosis

73
Q

Lesch-Nyhan

A

HGPRT deficiency

98. Gout, retardation, self-mutilation

74
Q

Letterer-Siwe

A

Acute disseminated Langerhans’ cell histiocytosis

75
Q

Libman-Sacks

A

Endocarditis with small vegetations on valve leaflets

101. Associated with SLE

76
Q

Lou Gehrig’s

A

Amyotrophic Lateral Sclerosis degeneration of upper & lower motor neurons

77
Q

Mallory-Weis Syndrome

A

Bleeding from esophagogastric lacerations 2° to wretching (alcoholics)

78
Q

Marfan’s

A

Connective tissue defect: defective Fibrillin gene Dissecting aortic aneurysm, subluxation of lenses

79
Q

McArdle’s Disease

A

Type V Glycogenosis - Glycogen storage disease (muscle phosphorylase deficiency = ↑ Glycogen)

80
Q

Meckel’s Diverticulum

A

Rule of 2’s: 2 inches long, 2 feet from the ileocecum, in 2% of the population
107. Embryonic duct origin; may have ectopic tissue: gastric/pancreatic remnant of vitteline duct/yolk stalk

81
Q

Meig’s Syndrome

A

Triad: ovarian fibroma, ascites, hydrothorax – associated w/ fibroma of ovaries

82
Q

Menetrier’s Disease

A

Giant hypertrophic gastritis (enlarged rugae; plasma protein loss)

83
Q

Monckeberg’s Arteriosclerosis

A

Calcification of the media (usually radial & ulnar aa.)

84
Q

Munchausen Syndrome

A

Factitious disorder (consciously creates symptoms, but doesn’t know why)

85
Q

Nelson’s Syndrome

A

1° Adrenal Cushings → surgical removal of adrenals → loss of negative feedback to pituitary →Pituitary Adenoma

86
Q

Niemann-Pick

A

Lysosomal Storage Disease (sphingomyelinase deficiency – sphingomyelin accumulation)
114. “Foamy histiocytes”

87
Q

Osler-Weber-Rendu Syndrome

A

Hereditary Hemorrhagic Telangiectasia. Seen in the Mormon’s of Utah.

88
Q

Paget’s Disease

A

Abnormal bone architecture (thickened, numerous fractures → pain)

89
Q

Pancoast Tumor

A

Bronchogenic tumor with superior sulcus involvement → Horner’s Syndrome

90
Q

Parkinson’s

A

Dopamine depletion in nigrostriatal tracts

91
Q

Peutz-Jegher’s Syndrome (AD)

A

Melanin pigmentation of lips, mouth, hand, genitalia + hamartomatous polyps of small intestine

92
Q

Peyronie’s Disease

A

Subcutaneous fibrosis of dorsum of penis

93
Q

Pick’s Disease – 2 Different

Diseases -

A
  1. Progressive dementia similar to Alzheimer’s
    1. Constrictive pericarditis – sequel to mediastinal tuberculosis
  2. Calcium-frosting, unyielding layer – heart chambers may be unable to dilate to receive blood during diastole
94
Q

Plummer’s Syndrome

A

Hyperthyroidism, nodular goiter, absence of eye signs (Plummer’s = Grave’s - eye signs)

95
Q

Plummer-Vinson

A

Esophageal webs & iron-deficiency anemia, spoon-shaped nails, ↑ SCCA of esophagus

96
Q

Pompe’s Disease

A

Type II Glycogenosis – Glycogen storage disease → cardiomegaly (α 1,4 Glucosidase deficiency: ↑ Glycogen)

97
Q

Pott’s Disease

A

Tuberculous osteomyelitis of the vertebrae

98
Q

Potter’s Complex

A

Renal agenesis → oligohydramnios → hypoplastic lungs, defects in extremities

99
Q

Raynaud’s

A

Disease: recurrent vasospasm in extremities = seen in young, healthy women
130. Phenomenon: 2° to underlying disease (SLE or scleroderma)

100
Q

Reiter’s Syndrome

A

Urethritis, conjunctivitis, arthritis non-infectious (but often follows infections), HLA-B27, polyarticular

101
Q

Reye’s Syndrome

A

Microvesicular fatty liver change & encephalopathy

133. 2° to aspirin ingestion in children following viral illness, especially VZV

102
Q

Riedel’s Thyroiditis

A

Idiopathic fibrous replacement of thyroid

103
Q

Rotor Syndrome

A
Congenital hyperbilirubinemia (conjugated)
136. Similar to Dubin-Johnson, but no discoloration of the liver
104
Q

Sezary Syndrome

A

Leukemic form of cutaneous T-cell lymphoma (mycosis fungoides)

105
Q

Shaver’s Disease

A

Aluminum inhalation → lung fibrosis

106
Q

Sheehan’s Syndrome

A

Postpartum pituitary necrosis = hemorrhage & shock usually occurred during delivery

107
Q

Shy-Drager

A

Parkinsonism with autonomic dysfunction & orthostatic hypotension

108
Q

Simmond’s Disease

A

Pituitary cachexia – can occur from either pituitary tumors or Sheehan’s

109
Q

Sipple’s Syndrome

A

MEN type IIa = pheochromocytoma, thyroid medullary CA, hyperparathyroidism

110
Q

Sjogren’s Syndrome

A

Triad: dry eyes, dry mouth, arthritis ↑ risk of B-cell lymphoma

111
Q

Spitz Nevus

A

Juvenile melanoma (always benign)

112
Q

Stein-Leventhal

A

Polycystic ovary: see amenorrhea; infertility; obesity; hirsutism = ↑↑LH secretion

113
Q

Stevens-Johnson Syndrome

A

Erythema multiforme, fever, malaise, mucosal ulceration (often 2° to infection = mycoplasma or sulfa drugs)

114
Q

Still’s Disease

A

Juvenile rheumatoid arthritis (absence of rheumatoid factor)

115
Q

Takayasu’s arteritis

A

Aortic arch syndrome

  1. Loss of carotid, radial or ulnar pulses = pulseless disease. Night sweats.
  2. Common in young Asian females
116
Q

Tay-Sachs (AR)

A

Gangliosidosis (hexosaminidase A deficiency → GM2 ganglioside) Cherry Red Spots of the Macula

117
Q

Tetralogy of Fallot

A

1.VSD, 2.overriding aorta, 3.pulmonary artery stenosis, 4.right ventricular hypertrophy

118
Q

Tourette’s Syndrome

A

Involuntary actions, both motor and vocal Txt w/ Pimozide

119
Q

Turcot’s Syndrome

A

Colon adenomatous polyps plus CNS tumors

120
Q

Turner’s Syndrome

A

45, XO = most common cause of Primary Amenorrhea. No Barr body on buccal smear.

121
Q

Vincent’s Infection

A

“Trench mouth” – acute necrotizing ulcerative gingivitis due to Fusobacterium

122
Q

Von Gierke’s Disease

A

Type I Glycogenosis – Glycogen storage disease (G6Ptase deficiency) – Glycogen accumulaiton

123
Q

Von Hippel-Lindau

A

Hemangioma (or hemangioblastoma) = cerebellum, brain stem, & retina

  1. Adenomas of the viscera, especially ↑ Renal Cell Carcinoma
  2. Chromosome 3p
124
Q

Von Recklinghausen’s

A

Neurofibromatosis & café au lait spots & Lisch nodules (Chromosome 17)

125
Q

Von Recklinghausen’s Disease of Bone

A

Osteitis fibrosa cystica (“brown tumor”) 2° to hyperparathyroidism = osteoclastic resorption w/
163. fibrous replacement

126
Q

Von Willebrand’s Disease (AD)

A

Defect in platelet adhesion 2° to deficiency in vWF. ↑aPPT, ↑ Bleed time

127
Q

Waldenstrom’s macroglobinemia

A

Proliferation of IgM-producing lymphoid cells in men 50-70 yoa; PAS(+) Dutcher bodies

128
Q

Wallenberg’s Syndrome

A

Posterior Inferior Cerebellar Artery (PICA) thrombosis “Medullary Syndrome”
167. Ipsilateral: ataxia, facial pain & temp; Contralateral: body pain & temp

129
Q

Waterhouse-Friderichsen

A

Adrenal insufficiency 2° to DIC

169. DIC 2° to meningiococcemia

130
Q

Weber’s Syndrome

A

Paramedian Infarct of Midbrain

171. Ipsilateral: mydriasis; Contralateral: UMN paralysis (lower face & body)

131
Q

Wegener’s Granulomatosis

A

Necrotizing granulomatous vasculitis of paranasal sinuses, lungs, kidneys, etc.

132
Q

Weil’s Disease

A
  1. Icteric Leptospirosis non-icteric prgresses to renal failure & myocarditis
  2. Dark field microscopy for dx
133
Q

Wermer’s Syndrome

A
  1. MEN type I = thyroid, parathyroid, adrenal cortex, pancreatic islets, pituitary
134
Q

Wernicke’s Aphasia

A

Sensory Aphasia impaired comprehension

135
Q

Wernicke-Korsakoff Syndrome

A

Thiamine deficiency in alcoholics; bilateral mamillary bodies (mediodorsal nucleua) (confusion, ataxia,
ophthalmoplegia)

136
Q

Whipple’s Disease

A

Malabsorption syndrome (with bacteria-laden macrophages) & polyarthritis

137
Q

Wilson’s Disease

A

Hepatolenticular degeneration (copper accumulation [Txt w/ Penicillamine ] & decrease in ceruloplasmin)

  1. Mallory Bodies in the Liver & also w/ alcoholic hepatitis & Hyaline change
  2. Chromosome 13
138
Q

Wiskott-Aldrich Syndrome

A

Immunodeficiency: combined B- &T-cell deficiency (thrombocytopenia & eczema)
183. ↓ IgM w/ ↑ IgA

139
Q

Wolff-Chaikoff Effect

A

High iodine level (−)’s thyroid hormone synthesis

140
Q

Zenker’s Diverticulum

A

Esophageal; cricopharyngeal muscles above UES

141
Q

Zollinger-Ellison

A

Gastrin-secreting tumor of pancreas (or intestine) → ↑ acid → recurrent ulcers

142
Q

Roger’s Disease

A

Interventricular septal defect

143
Q

Barlow’s Syndrome

A

Floppy vale syndrome – women b/t 20-40 yoa

144
Q

Bracht-Wachter Lesions

A

Minute abscesses found in subacute bacterial endocarditis

145
Q

Lutembacher’s Syndrome

A

Combination of septum secundum atrial septal defect w/ mitral stenosis

146
Q

Schmidt’s Syndrome

A

Autoimmnue thyroid Disease (Hashimoto’s ) & insulin-dependent diabetes